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NHTSA ID Number: 10164995

Manufacturer Communication Number: S19AC

TSB/Document Date: 2019-09-18


Summary

Overview Blue Bird has determined that the exhaust muffler hanger rods may not be torqued properly. As part of this service bulletin, it is necessary to check the torque on rods to ensure they are torqued in accordance with the provided instructions. If both exhaust hanger rods torque are correct, no further action is required. In the event that one or both hanger rods are determined to be less than the required installation torque, then the torque application process shall be utilized, per the provided instructions. Blue Bird will reimburse the repair time in accordance with the information presented below. Affected Units This service bulletin includes certain 2018 through 2020 Blue Bird All American School Buses manufactured from March 2, 2017 through March 30, 2019. Additionally, this service bulletin includes certain 2018 through 2020 Blue Bird All American Non-school Buses manufactured from March 18, 2017 through February 20, 2019. A separate printout will be provided listing all buses in your territory that are affected by this service bulletin. Service Bulletin S19AC will be mailed to all owners on record. Be sure to review your list and advise of any incorrect owner names and/or addresses. Repair Parts No parts are required for this service bulletin. Time Allowance Time allowed to complete the Torque Verification (Repair A) is 0.1 hr (6 mins). Time allowed to complete the Torque Application (Repair B), if required, is 0.3hr (18 mins). Remedy to be performed, per enclosed campaign instructions.


BLUE BIRD.

S19AC

September 17, 2019
To: Affected US Dealers
Subject: S19AC, Rear Engine Exhaust Hanger Rod Fastener Torque
Models Affected: Model Year: Certain 2018 to 2020 (School Bus and Non-school Bus)

Model: All American
Bulletin Duration: One (1) Year from Date of Issue
Overview:

Blue Bird has determined that the exhaust muffler hanger rods may not be torqued properly. As part of
this service bulletin, it is necessary to check the torque on rods to ensure they are torqued in
accordance with the provided instructions. If both exhaust hanger rod’s torque are correct, no further
action is required. In the event that one or both hanger rods are determined to be less than the required
installation torque, then the torque application process shall be utilized, per the provided instructions.
Blue Bird will reimburse the repair time in accordance with the information presented below.

Affected Units:

This service bulletin includes certain 2018 through 2020 Blue Bird All American School Buses
manufactured from March 2, 2017 through March 30, 2019. Additionally, this service bulletin includes
certain 2018 through 2020 Blue Bird All American Non-school Buses manufactured from March 18, 2017
through February 20, 2019. A separate printout will be provided listing all buses in your territory that
are affected by this service bulletin. Service Bulletin S19AC will be mailed to all owners on record. Be
sure to review your list and advise of any incorrect owner names and/or addresses.

Repair Parts:
No parts are required for this service bulletin.

Time Allowance:
e Time allowed to complete the Torque Verification (Repair A) is 0.1 hr (6 mins).

e Time allowed to complete the Torque Application (Repair B), if required, is 0.3hr (18 mins).

Remedy to be performed, per enclosed campaign instructions.

BLUE BIRD BODY COMPANY
3920 Arkwright Road, Suite 200, Macon, GA 31210 — (478) 825-2021

SZ

BLUE BIRD.

Blue Bird Body Company $19AC
Page 2

Completion Notification:

To request reimbursement for completed repairs, Dealers may submit claims via Blue Bird ClaimsCenter.
Upon submission and approval of the claim, the body number will be flagged ‘Completed/Claim’. For
completed repairs where no reimbursement is requested, Dealers shall send the body number, repair
date, odometer, and name of the repair facility to [email protected] the body number will

be flagged ‘Completed/Reply’.

If the modification directed by this notification was performed on your unit prior to the receipt of this
notification, you may be eligible to receive reimbursement for the cost of obtaining a pre-notification
remedy of the subject matter of the campaign. Please provide a copy of all receipts to
[email protected] .

Bulletin Duration:
This Service Bulletin ends one (1) year from date of issue.

Repair Facility:
Owners are being advised to contact their Dealer for completion of this repair.

Questions:
Questions regarding this bulletin should be directed to your Blue Bird Field Service Engineer.

Regards,

Lisa Hancock

[email protected]

Se

BLUE BIRD.
S19AC

September 17, 2019
To: Blue Bird Owner
Subject: S19AC, Rear Engine Exhaust Hanger Rod Fastener Torque
Models Affected: Model Year: Certain 2018 to 2020 (School Bus and Non-school Bus)

Model: All American
Bulletin Duration: One (1) Year from Date of Issue
Overview:

Blue Bird has determined that the exhaust muffler hanger rods may not be torqued properly. As part of
this service bulletin, it is necessary to check the torque on rods to ensure they are torqued in
accordance with the provided instructions. If both exhaust hanger rod’s torque are correct, no further
action is required. In the event that one or both hanger rods are determined to be less than the required
installation torque, then the torque application process shall be utilized, per the provided instructions.
Blue Bird will reimburse the repair time in accordance with the information presented below.

Affected Units:

This service bulletin includes certain 2018 through 2020 Blue Bird All American School Buses
manufactured from March 2, 2017 through March 30, 2019. Additionally, this service bulletin includes
certain 2018 through 2020 Blue Bird All American Non-school Buses manufactured from March 18, 2017
through February 20, 2019. A separate printout is included, which lists all of your buses that are
affected by this service bulletin.

Repair Parts:

No parts are required for this service bulletin.

Time Allowance:

e Time allowed to complete the Torque Verification (Repair A) is 0.1 hr (6 mins).

e Time allowed to complete the Torque Application (Repair 8), if required, is 0.3hr (18 mins).

Remedy to be performed, per enclosed campaign instructions.

BLUE BIRD BODY COMPANY
3920 Arkwright Road, Suite 200, Macon, GA 31210 — (478) 825-2021

Se

BLUE BIRD.
Blue Bird Body Company S19AC
Page 2

Completion Notification:

If you perform this service bulletin yourself or have an outside repair facility perform this bulletin, please
notify your Blue Bird Dealer when the repair is completed. Send the body number, repair date, and
odometer reading to your Blue Bird Dealer. If you request reimbursement for labor, also send a copy of
the work order/invoice to your Blue Bird Dealer.

If the modification directed by this notification was performed on your unit prior to the receipt of this
notification, you may be eligible to receive reimbursement for the cost of obtaining a pre-notification
remedy of the subject matter of the campaign. Please provide a copy of all receipts to
[email protected] .

Bulletin Duration:
This Service Bulletin ends one (1) year from date of issue.

Repair Facility:

We encourage you to contact your Blue Bird Dealer to arrange to have this Service Bulletin performed.
However, you may elect and have the option to perform this Service Bulletin yourself or have a qualified
repair facility convenient to you perform this work. A qualified technician must perform work required
under this bulletin.

Questions:
Questions regarding this bulletin should be directed to your Blue Bird Dealer.

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TSB/Document ID: S19AC

Replacement Service Bulletin Number:

MFR Communication Date: 2019-09-16

MFR Internal Campaign ID/Software Version:

Communication Type: Service Bulletin/Repair Instructions

NHTSA Components: ENGINE AND ENGINE COOLING:EXHAUST SYSTEM:MANIFOLD/HEADER/MUFFLER/TAIL PIPE

MFR Component System:

MFR Component Subsystem:


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