Subject: Muffler/Cuff Spot Weld Failure

Muffler Part Numbers Affected: A1754001-23 and A1754001-25

Affected Aircraft Models: See Table 1

Muffler Serial Numbers Affected: ONLY the serial numbers listed in Table 2

Time of Compliance: Upon receipt of this Service Bulletin (prior to further flight)

In the interest of aviation safety, and in an effort to be proactive concerning possible spot weld failures of the above referenced part number mufflers, AWI is issuing this Mandatory Service Bulletin.

Read full details and instructions here.