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December 7, 2023 NHTSA CAMPAIGN NUMBER: 23V823000
Improperly Secured Electrical Connector
An inability for the platform basket to maintain level can result in the basket tipping, increasing the risk of injury.
NHTSA Campaign Number: 23V823
Manufacturer Pierce Manufacturing
Components ELECTRICAL SYSTEM
Potential Number of Units Affected 314
Summary
Pierce Manufacturing (Pierce) is recalling certain 2019-2023 Arrow XT, Enforcer, and Velocity mid-mount tower trucks equipped with an aerial platform basket. The electrical connector to the aerial turntable wiring harness may not be properly secured, which can result in connector corrosion and affect the leveling ability of the platform basket.
Remedy
Pierce will replace the aerial turntable wiring harness, free of charge. Owner notification letters were mailed December 14, 2023. Owners may contact Pierce customer service at 1-888-974-3723. Pierce’s number for this recall is 74B330.
Notes
Owners may also contact the National Highway Traffic Safety Administration Vehicle Safety Hotline at 1-888-327-4236 (TTY 1-800-424-9153), or go to www.nhtsa.gov.
Service J1939 Data Cable Assembly Replacement
74B330
12/13/23
Scope:
The purpose of these instructions is to aid in the installation of the replacement harness and to ensure correct placement of the connectors to eliminate the potential of water intrusion.
Chronology :
August 2022 a customer contacts Pierce and advises that the platform basket on an aerial device, which was near to the ground, went through its leveling operation and the platform basket made contact with the ground.
Pierce personnel visit the subject truck and performs visual / functional checks. Corrosion is discovered in the connector in the aerial turntable wiring harness. The corroded pins are replaced and shrink tubing applied to prevent corrosion from redeveloping.
January 2023, a customer contacts Pierce and informs that occupants in the platform basket of an aerial truck experienced platform leveling which was not consistent with normal operation. No contact with the ground was reported and operator error could not be ruled out. Pierce visits the subject truck and performs visual / functional checks. The condition described could not be duplicated. During this inspection corrosion was observed in the connector on the aerial turntable wiring harness. The connector was re-pinned and sealed with heat shrink tubing.
October 2023, an updated wire harness, incorporating a crimped / sealed connection, is introduced into production.
November 2023, Pierce receives a report from a customer that during that during a training exercise, with the platform basket approximately one foot off the ground, as the platform operator commanded the aerial to raise, and as the platform basket leveled itself, the front of the platform basket contacted the ground. No injuries were reported. Pierce personnel visits the subject truck and performs visual / functional inspections. During this inspection, the condition as described could not be duplicated but moisture intrusion / corrosion is observed in the connector on the aerial turntable wiring harness.
November 2023, Pierce makes the determination that a safety defect exists in the electrical cable connector.
Pierce is not aware of any injuries to persons related to the above referenced condition.
15 Affected Products
Vehicles
MAKE | MODEL | YEAR |
PIERCE | ARROW XT | 2019-2023 |
PIERCE | ENFORCER | 2019-2023 |
PIERCE | VELOCITY | 2019-2023 |
7 Associated Documents
Recall Acknowledgement
RCAK-23V823-7276.pdf 698.126KB
Defect Notice 573 Report
RCLRPT-23V823-6175.PDF 215.04KB
Manufacturer Notices(to Dealers,etc)
Recall 573 Report – 12/14/2023
RCLRPT-23V823-9371.PDF 215.044KB
Recall 573 Report – 12/14/2023
RCLRPT-23V823-3991.PDF 215.096KB
Owner Notification Letter(Part 577)
RCONL-23V823-7910.pdf 130.087KB
Remedy Instructions and TSB
RCRIT-23V823-4682.pdf 3386.662KB
Latest Recalls Documents
For the Latest and Most recent Recall Information Visit the link below…
https://www-odi.nhtsa.dot.gov/acms/cs/documentList.xhtml?docId=23V823&docType=RCL
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SEOCONTENT-START
OMB Control No.: 2127-0004
Part 573 Safety Recall Report 23V-823
The information contained in this report was submitted pursuant to 49 CFR §573
Manufacturer Name : Submission Date :
Pierce Manufacturing DEC 07, 2023 NHTSA Recall No. : 23V-823 Manufacturer Recall No. : 74B330 Manufacturer Information :
Manufacturer Name : Pierce Manufacturing Address : 2600 American Drive
P.O. BOX 2017 Appleton WI 54912-2017
Company phone : 920-832-3000
Population :
Number of potentially involved : 314 Estimated percentage with defect : 100 %
Vehicle Information : Vehicle 1 : 2019-2023 Pierce 100′ Mid Mount Tower Trucks on Arrow XT, Enforcer & Velocity Chassis
Vehicle Type : BUSES, MEDIUM & HEAVY VEHICLES Body Style : ALL Power Train : DIESEL
Descriptive Information : The vehicles affected by this recall include 100’ mid-mount tower trucks of the models described within this report that are equipped with an aerial platform basket.
Production Dates : MAY 07, 2019 – OCT 31, 2023
VIN Range 1 : Begin : NR End : NR Not sequential Description of Defect :
Description of the Defect : During assembly of the aerial portion to the truck, Pierce connects the male and female ends of an electrical connector on the aerial turntable wiring harness and installs tie straps to reduce the potential for strain and unintended movement of the harness. If the tie straps are not correctly installed, this condition may lead to strain on the electrical connector which could allow for movement of the electrical connector. Movement of the connector could permit a gap to develop at the connection point. Should a gap develop, and moisture enters at the connection point, over time the pins inside the connector could corrode and potentially disrupt the electrical signal which controls the platform basket leveling feature. The signal to adjust the raise, lower, and rotate commands of the aerial device movement, and the emergency shut off button, are not affected by this issue.
FMVSS 1 : NR FMVSS 2 : NR
Description of the Safety Risk : If the electrical signal for the platform basket leveling feature is disrupted, it
may not send a consistent, or any, signal which could lead to the platform Part 573 Safety Recall Report 23V-823 Page 2 basket rotating past the horizontal (level) position. Should this occur, the risk of injury to platform basket occupants is increased if the emergency stop button is not depressed and the required safety restraints are not being worn.
Description of the Cause : NR Identification of Any Warning
that can Occur : There is no known warning to occupants in the platform basket should this condition exist. If the condition occurs, occupants of the platform basket can push the emergency stop button to cease all platform movement. Involved Components : Component Name 1 : NR Component Description : NR Component Part Number : NR Supplier Identification : Component Manufacturer
Name : NR Address : NR
NR
Country : NR Chronology :
August 2022 a customer contacts Pierce and advises that the platform basket on an aerial device, which was near to the ground, went through its leveling operation and the platform basket made contact with the ground. Pierce personnel visit the subject truck and performs visual / functional checks. Corrosion is discovered in the connector in the aerial turntable wiring harness. The corroded pins are replaced and shrink tubing applied to prevent corrosion from redeveloping. January 2023, a customer contacts Pierce and informs that occupants in the platform basket of an aerial truck experienced platform leveling which was not consistent with normal operation. No contact with the ground was reported and operator error could not be ruled out. Pierce visits the subject truck and performs visual / functional checks. The condition described could not be duplicated. During this inspection corrosion was observed in the connector on the aerial turntable wiring harness. The connector was re-pinned and sealed with heat shrink tubing. October 2023, an updated wire harness, incorporating a crimped / sealed connection, is introduced into The information contained in this report was submitted pursuant to 49 CFR §573 Part 573 Safety Recall Report 23V-823
Page 3
The information contained in this report was submitted pursuant to 49 CFR §573
production.
November 2023, Pierce receives a report from a customer that during that during a training exercise, with the platform basket approximately one foot off the ground, as the platform operator commanded the aerial to raise, and as the platform basket leveled itself, the front of the platform basket contacted the ground. No injuries were reported. Pierce personnel visits the subject truck and performs visual / functional inspections. During this inspection, the condition as described could not be duplicated but moisture intrusion / corrosion is observed in the connector on the aerial turntable wiring harness. November 2023, Pierce makes the determination that a safety defect exists in the electrical cable connector. Pierce is not aware of any injuries to persons related to the above referenced condition.
Description of Remedy :
Description of Remedy Program : Pierce will supply, at no charge to the customer, a replacement aerial
turntable wiring harness which utilizes an electrical connection that is permanently crimped together and sealed. An appropriate labor allowance to install the remedy component will be provided. How Remedy Component Differs from Recalled Component : Identify How/When Recall Condition was Corrected in Production : The remedy component will consist of an electrical connection that is no longer a “plug”, but instead is permanently crimped together and sealed – thus preventing influence from and sensitivity to external factors such as strain relief and moisture. Vehicles outside the recall population use an electrical connection that do not use a plug style connection.
The remedy component described above became effective in production in October 2023 Recall Schedule :
Description of Recall Schedule : Notifications to customers will be made via a customer letter. The 577
customer letter will be mailed pending NHTSA approval.
Planned Dealer Notification Date : DEC 15, 2023 – DEC 15, 2023
Planned Owner Notification Date : DEC 15, 2023 – DEC 15, 2023
* NR – Not Reported
**************************************************************************************************************
P a g e 1 o f 6
Scope:
The purpose of these instructions is to aid in the installation of the replacement harness and to ensure correct placement of the connectors to eliminate the potential of water intrusion.
Procedure:
Connector
C74 C469-c C495-a C954
Color White Red/Orange Red/Yellow
Description Elevation Cylinder Extension Cylinder Rotary Encoder Power Cable
NOTE: Performing this procedure will log communication loss fault code(s). This is to be expected. Note time and date of new harness installation to eliminate this intentional fault code from future troubleshooting. 1. Ensure the ladder is resting in the cradle and the lift cylinders are no longer supporting the aerial.
2. Attach “DO NOT START” tag to truck ignition switch.
3. Turn battery switch OFF (if equipped) or disconnect batteries. (See “Battery Connect/Disconnect,” Group 0925-P-001.)
Title: Number:
Revision Number: Chassis Type:
Service J1939 Data Cable Assembly Replacement 74B330 Release Date: 12/13/23
Revision Date:
Mid-Mount Aerials Component Description: N/A Warranty: CAMPAIGN 74B330 TYPE OF DOCUMENT # 4. Remove six screws (1) and upper console panel (2) from aerial console.
5. Remove four screws (3) and lower console panel (4) from aerial console. NOTE:
• The location and routing of the existing wire harness may differ for your vehicle.
• Existing wire harness cannot be removed from vehicle because system dependencies. It will be rerouted to the turntable where connections will be made.
• Cut zip ties as needed and note location. These will need to be replaced before returning the vehicle into service. P a g e 2 o f 6 TYPE OF DOCUMENT # 6. Disconnect connector C74 (6) from lift cylinder sensor (5). NOTE: Ensure there is no binding or stretching when device is operated in full range. 7. Disconnect connector C465 (8) from connector (7). 8. Disconnect connector C465 (9) from connector (10).
9. Route new wire harness parallel to the existing wire harness. P a g e 3 o f 6 TYPE OF DOCUMENT # 10. Route the length of existing wire harness ending in connector C74 (11) and new wire harness length ending in connector C469-c (11) through grommet (12). 11. Route length of new wire harness ending in connector C954 (13) through passthrough (15).
12. Route length of existing wire harness ending in C74 (14) upwards into next compartment.
13. Route C469 c through passage (15). P a g e 4 o f 6 TYPE OF DOCUMENT # 14. Connect connector C954 (17) to coiled connector (16) of existing wire harness.
15. Connect connector C954 to coiled end of existing wire harness.
16. Connect connector C469-c (11) to existing wire harness power connector.
17. Connect connector C465-a (9) to connector (10). 18. Connect connector C74 (21) to lift cylinder sensor connector (18). P a g e 5 o f 6 TYPE OF DOCUMENT #
P a g e 6 o f 6
Failure to properly secure connector C74 will cause damage to equipment. Connector C74 must be secure far enough forward so as to not become crushed when aerial device is at maximum elevation and extension. 19. Secure connector C74 (21) to hydraulic line (19) using zip tie (20).
Failure to cap unused connectors from the existing wire harness can cause damage to equipment. These are open CAN connections and lead to fault codes if left exposed. 20. Using connector caps from the new wire harness, cap the now unused connectors from the existing wire harness.
21. Verify proper aerial device operation. Refer to aerial operator’s manual for proper procedure. NOTE: Ensure there is no binding or stretching when device is operated in full range.
If any additional support is needed, please open a technical support incident on Pierceparts.com.
**************************************************************************************************************
Oshkosh Corporation Classification – Restricted
December 2023 IMPORTANT SAFETY RECALL
NHTSA Recall #23V823
Pierce Recall #74B330
Dear Pierce Vehicle Owner:
Ref: Pierce Job# << Product Number>>
This notice applies to your vehicle, VIN: <>
This notice is sent to you in accordance with the requirements of the National Traffic and Motor Vehicle Safety Act. Pierce has decided that a defect which relates to motor vehicle safety exists in certain 100’ Mid-Mount Tower Trucks on 2019 – 2023 Arrow XT, Enforcer & Velocity chassis manufactured between May 7, 2019 and October 31, 2023.
Why is a recall being conducted?
Due to an assembly issue, moisture may enter an electrical connection on the aerial turntable wiring harness on certain 100’ Mid Mount Tower Trucks. The presence of moisture may, over time, corrode the connector pins, which could disrupt the electrical signal controlling the platform basket leveling feature. Should this electrical disruption exist, and the raise or lower function of the aerial is activated, the platform basket may rotate past its horizontal (level) condition after the raise or lower function of the aerial is returned to its neutral state. If the platform basket rotates past its horizontal (level) condition, the risk of injury to platform occupants may be increased. What are we doing about the problem? • Pierce will replace the existing affected electrical connector with one which is permanently crimped and sealed. This repair will be completed at a Pierce authorized repair facility or in the field by a Pierce authorized representative.
• The repair will be made at no cost to the customer.
• This repair should take no longer than two hours to complete.
! IM P O R T A N T !
⮚ Your Pierce Vehicle is being recalled.
⮚ You should contact your Pierce dealership service representative to schedule an appointment for the remedy.
⮚ This service will be performed for you at no charge. Oshkosh Corporation Classification – Restricted
What should you do? • Inspect the affected electrical connector for the presence of corrosion. If no corrosion is observed, the vehicle can remain in service. If corrosion is observed, the vehicle can remain in service, however, its aerial device and platform basket should not be utilized.
• To coordinate your repair, contact your Pierce dealership service representative.
• If you have any questions or require further assistance, contact Pierce at 1-888-Y-PIERCE (1-888-974-3723). What if you no longer own this vehicle? If you no longer own this vehicle, please contact Pierce at 1-888-Y-PIERCE (1-888-974-3723) to assist us in updating our records. Federal law requires that you forward a copy of this safety recall notice to the lessee within 10 days. Who should you contact if you have further questions or concerns? If you have further questions, please contact Pierce at 1-888-Y-PIERCE (1-888-974-3723) to allow us to assist you. If you have already paid to have your vehicle corrected for this condition, you may be eligible for reimbursement of the charges you paid for the repair. To learn more about what you need to do to obtain reimbursement, contact our service group at 1-888-Y-PIERCE (1-888-974-3723) and indicate you have a service and technical question. If your dealer fails or is unable to remedy this defect without charge and within a reasonable time, you may submit a written complaint to:
The Administrator, National Highway Traffic Safety Administration 1200 New Jersey Avenue, SE.,
Washington, DC 20590
or call the toll-free Vehicle Safety Hotline at 1-888-327-4236 (TTY: 1-800-424-9153); or go to http://www.safercar.gov. We apologize for any inconvenience this safety recall may cause, but your safety is our first concern.
Sincerely,
PIERCE MANUFACTURING INC.
**************************************************************************************************************
ierce Manufacturing 2600 American Drive, Appleton, 7 • (888) 974-3723 FAX (920) 832-3353
Oshkosh Corporation Classification ‐ Restricted TO: Pierce Dealer Network
FROM: Todd Miorin – Sr. Director ‐ Product Safety & Reliability Kristina Spang – Vice President, Aftermarket DATE: December 2023
SUBJECT: Recall Notice: NHTSA 23V823 / Pierce 74B330
VEHICLE SAFETY RECALL DEALER NOTIFICATION – IMPORTANT
Pierce has determined that a defect which relates to motor vehicle safety exists in certain 100’ Mid‐Mount Tower Trucks on 2019 – 2023 Arrow XT, Enforcer & Velocity chassis manufactured between May 7, 2019 and October 31, 2023. Due to an assembly issue, moisture may enter an electrical connector on the aerial turntable wiring harness and, over time, corrode the pins within the connector. If this occurs, the electrical signal which controls the platform basket leveling feature may be disrupted. Should this electrical disruption exist, and the raise or lower function of the aerial is activated, the platform basket may rotate past its horizontal (level) condition after the raise or lower function of the aerial is returned to its neutral state. If the platform basket rotates past its horizontal (level) condition, the risk of injury to platform occupants may be increased. VEHICLES INVOLVED
The vehicles involved are 100’ Mid Mount Tower Trucks on Arrow XT, Enforcer & Velocity chassis manufactured between May 7, 2019 and October 31, 2023. There is a total of 314 affected vehicles in the field. Involved vehicles have been identified by Pierce job numbers and are listed on Pierceparts.com. Owner name and address data will enable dealers to follow up with owners involved in this campaign after Pierce has issued the customer notifications. Pierce has identified these vehicles based on build orders. After completing an inspection of the affected electrical connector, customers can continue to keep their vehicles in service if the inspection is passed. DEALER RESPONSIBILITY
All repairs will be carried out by an authorized Pierce service representative. However, it is the Pierce dealer’s responsibility to support the customers on the defined list and to encourage the apparatus owner to schedule a service appointment to replace the affected electrical connector with a new wiring harness. Please make sure the customer is aware the remedy will be provided by Pierce without charge. It is a violation of Federal law for a dealer to deliver a new vehicle covered by this recall notice under a sale or lease until the defect has been remedied. Thank you for your support and understanding. If you have any questions, please feel free to contact myself at 920.502.3139, or Kristina Spang at 920.832.3683.
Sincerely,
Todd C. Miorin
Sr. Director ‐ Product Safety & Reliability
**************************************************************************************************************
OMB Control No.: 2127-0004
Part 573 Safety Recall Report 23V-823
The information contained in this report was submitted pursuant to 49 CFR §573
Manufacturer Name : Submission Date :
Pierce Manufacturing DEC 14, 2023 NHTSA Recall No. : 23V-823 Manufacturer Recall No. : 74B330 Manufacturer Information :
Manufacturer Name : Pierce Manufacturing Address : 2600 American Drive
P.O. BOX 2017 Appleton WI 54912-2017
Company phone : 920-832-3000
Population :
Number of potentially involved : 314 Estimated percentage with defect : 100 %
Vehicle Information : Vehicle 1 : 2019-2023 Pierce 100′ Mid Mount Tower Trucks on Arrow XT, Enforcer & Velocity Chassis
Vehicle Type : BUSES, MEDIUM & HEAVY VEHICLES Body Style : ALL Power Train : DIESEL
Descriptive Information : The vehicles affected by this recall include 100’ mid-mount tower trucks of the models described within this report that are equipped with an aerial platform basket.
Production Dates : MAY 07, 2019 – OCT 31, 2023
VIN Range 1 : Begin : NR End : NR Not sequential Description of Defect :
Description of the Defect : During assembly of the aerial portion to the truck, Pierce connects the male and female ends of an electrical connector on the aerial turntable wiring harness and installs tie straps to reduce the potential for strain and unintended movement of the harness. If the tie straps are not correctly installed, this condition may lead to strain on the electrical connector which could allow for movement of the electrical connector. Movement of the connector could permit a gap to develop at the connection point. Should a gap develop, and moisture enters at the connection point, over time the pins inside the connector could corrode and potentially disrupt the electrical signal which controls the platform basket leveling feature. The signal to adjust the raise, lower, and rotate commands of the aerial device movement, and the emergency shut off button, are not affected by this issue.
FMVSS 1 : NR FMVSS 2 : NR
Description of the Safety Risk : If the electrical signal for the platform basket leveling feature is disrupted, it
may not send a consistent, or any, signal which could lead to the platform Part 573 Safety Recall Report 23V-823 Page 2 basket rotating past the horizontal (level) position. Should this occur, the risk of injury to platform basket occupants is increased if the emergency stop button is not depressed and the required safety restraints are not being worn.
Description of the Cause : NR Identification of Any Warning
that can Occur : There is no known warning to occupants in the platform basket should this condition exist. If the condition occurs, occupants of the platform basket can push the emergency stop button to cease all platform movement. Involved Components : Component Name 1 : NR Component Description : NR Component Part Number : NR Supplier Identification : Component Manufacturer
Name : NR Address : NR
NR
Country : NR Chronology :
August 2022 a customer contacts Pierce and advises that the platform basket on an aerial device, which was near to the ground, went through its leveling operation and the platform basket made contact with the ground. Pierce personnel visit the subject truck and performs visual / functional checks. Corrosion is discovered in the connector in the aerial turntable wiring harness. The corroded pins are replaced and shrink tubing applied to prevent corrosion from redeveloping. January 2023, a customer contacts Pierce and informs that occupants in the platform basket of an aerial truck experienced platform leveling which was not consistent with normal operation. No contact with the ground was reported and operator error could not be ruled out. Pierce visits the subject truck and performs visual / functional checks. The condition described could not be duplicated. During this inspection corrosion was observed in the connector on the aerial turntable wiring harness. The connector was re-pinned and sealed with heat shrink tubing. October 2023, an updated wire harness, incorporating a crimped / sealed connection, is introduced into The information contained in this report was submitted pursuant to 49 CFR §573 Part 573 Safety Recall Report 23V-823
Page 3
The information contained in this report was submitted pursuant to 49 CFR §573
production.
November 2023, Pierce receives a report from a customer that during that during a training exercise, with the platform basket approximately one foot off the ground, as the platform operator commanded the aerial to raise, and as the platform basket leveled itself, the front of the platform basket contacted the ground. No injuries were reported. Pierce personnel visits the subject truck and performs visual / functional inspections. During this inspection, the condition as described could not be duplicated but moisture intrusion / corrosion is observed in the connector on the aerial turntable wiring harness. November 2023, Pierce makes the determination that a safety defect exists in the electrical cable connector. Pierce is not aware of any injuries to persons related to the above referenced condition.
Description of Remedy :
Description of Remedy Program : Pierce will supply, at no charge to the customer, a replacement aerial
turntable wiring harness which utilizes an electrical connection that is permanently crimped together and sealed. An appropriate labor allowance to install the remedy component will be provided. How Remedy Component Differs from Recalled Component : Identify How/When Recall Condition was Corrected in Production : The remedy component will consist of an electrical connection that is no longer a “plug”, but instead is permanently crimped together and sealed – thus preventing influence from and sensitivity to external factors such as strain relief and moisture. Vehicles outside the recall population use an electrical connection that do not use a plug style connection.
The remedy component described above became effective in production in October 2023 Recall Schedule :
Description of Recall Schedule : Notifications to customers will be made via a customer letter. The 577
customer letter will be mailed pending NHTSA approval.
Planned Dealer Notification Date : DEC 15, 2023 – DEC 15, 2023
Planned Owner Notification Date : DEC 15, 2023 – DEC 18, 2023
* NR – Not Reported
**************************************************************************************************************
OMB Control No.: 2127-0004
Part 573 Safety Recall Report 23V-823
The information contained in this report was submitted pursuant to 49 CFR §573
Manufacturer Name : Submission Date :
Pierce Manufacturing DEC 14, 2023 NHTSA Recall No. : 23V-823 Manufacturer Recall No. : 74B330 Manufacturer Information :
Manufacturer Name : Pierce Manufacturing Address : 2600 American Drive
P.O. BOX 2017 Appleton WI 54912-2017
Company phone : 920-832-3000
Population :
Number of potentially involved : 314 Estimated percentage with defect : 100 %
Vehicle Information : Vehicle 1 : 2019-2023 Pierce 100′ Mid Mount Tower Trucks on Arrow XT, Enforcer & Velocity Chassis
Vehicle Type : BUSES, MEDIUM & HEAVY VEHICLES Body Style : ALL Power Train : DIESEL
Descriptive Information : The vehicles affected by this recall include 100’ mid-mount tower trucks of the models described within this report that are equipped with an aerial platform basket.
Production Dates : MAY 07, 2019 – OCT 31, 2023
VIN Range 1 : Begin : NR End : NR Not sequential Description of Defect :
Description of the Defect : During assembly of the aerial portion to the truck, Pierce connects the male and female ends of an electrical connector on the aerial turntable wiring harness and installs tie straps to reduce the potential for strain and unintended movement of the harness. If the tie straps are not correctly installed, this condition may lead to strain on the electrical connector which could allow for movement of the electrical connector. Movement of the connector could permit a gap to develop at the connection point. Should a gap develop, and moisture enters at the connection point, over time the pins inside the connector could corrode and potentially disrupt the electrical signal which controls the platform basket leveling feature. The signal to adjust the raise, lower, and rotate commands of the aerial device movement, and the emergency shut off button, are not affected by this issue.
FMVSS 1 : NR FMVSS 2 : NR
Description of the Safety Risk : If the electrical signal for the platform basket leveling feature is disrupted, it
may not send a consistent, or any, signal which could lead to the platform Part 573 Safety Recall Report 23V-823 Page 2 basket rotating past the horizontal (level) position. Should this occur, the risk of injury to platform basket occupants is increased if the emergency stop button is not depressed and the required safety restraints are not being worn.
Description of the Cause : NR Identification of Any Warning
that can Occur : There is no known warning to occupants in the platform basket should this condition exist. If the condition occurs, occupants of the platform basket can push the emergency stop button to cease all platform movement. Involved Components : Component Name 1 : Connector
Component Description : Deutsch connector for CAN Bus communication. Component Part Number : DT06-3S-CE13 Supplier Identification : Component Manufacturer
Name : NR Address : NR
NR
Country : NR Chronology :
August 2022 a customer contacts Pierce and advises that the platform basket on an aerial device, which was near to the ground, went through its leveling operation and the platform basket made contact with the ground. Pierce personnel visit the subject truck and performs visual / functional checks. Corrosion is discovered in the connector in the aerial turntable wiring harness. The corroded pins are replaced and shrink tubing applied to prevent corrosion from redeveloping. January 2023, a customer contacts Pierce and informs that occupants in the platform basket of an aerial truck experienced platform leveling which was not consistent with normal operation. No contact with the ground was reported and operator error could not be ruled out. Pierce visits the subject truck and performs visual / functional checks. The condition described could not be duplicated. During this inspection corrosion was observed in the connector on the aerial turntable wiring harness. The connector was re-pinned and sealed with heat shrink tubing. October 2023, an updated wire harness, incorporating a crimped / sealed connection, is introduced into The information contained in this report was submitted pursuant to 49 CFR §573 Part 573 Safety Recall Report 23V-823
Page 3
The information contained in this report was submitted pursuant to 49 CFR §573
production.
November 2023, Pierce receives a report from a customer that during that during a training exercise, with the platform basket approximately one foot off the ground, as the platform operator commanded the aerial to raise, and as the platform basket leveled itself, the front of the platform basket contacted the ground. No injuries were reported. Pierce personnel visits the subject truck and performs visual / functional inspections. During this inspection, the condition as described could not be duplicated but moisture intrusion / corrosion is observed in the connector on the aerial turntable wiring harness. November 2023, Pierce makes the determination that a safety defect exists in the electrical cable connector. Pierce is not aware of any injuries to persons related to the above referenced condition.
Description of Remedy :
Description of Remedy Program : Pierce will supply, at no charge to the customer, a replacement aerial
turntable wiring harness which utilizes an electrical connection that is permanently crimped together and sealed. An appropriate labor allowance to install the remedy component will be provided. How Remedy Component Differs from Recalled Component : Identify How/When Recall Condition was Corrected in Production : The remedy component will consist of an electrical connection that is no longer a “plug”, but instead is permanently crimped together and sealed – thus preventing influence from and sensitivity to external factors such as strain relief and moisture. Vehicles outside the recall population use an electrical connection that do not use a plug style connection.
The remedy component described above became effective in production in October 2023 Recall Schedule :
Description of Recall Schedule : Notifications to customers will be made via a customer letter. The 577
customer letter will be mailed pending NHTSA approval.
Planned Dealer Notification Date : DEC 15, 2023 – DEC 15, 2023
Planned Owner Notification Date : DEC 15, 2023 – DEC 18, 2023
* NR – Not Reported
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