Federal Aviation Administration

14 CFR Part 39

[Docket No. FAA–2022–0891; Project Identifier AD–2022–00585–A,E,R; Amendment 39–22432; AD 2023–09–09]

RIN 2120–AA64

Airworthiness Directives; Various Airplanes, Helicopters, and Engines

AGENCY: Federal Aviation Administration (FAA), DOT.

ACTION: Final rule.


The FAA is adopting a new airworthiness directive (AD) for turbocharged, reciprocating engine-powered airplanes and helicopters and turbocharged, reciprocating engines with a certain v-band coupling installed.

This AD was prompted by multiple failures of spot-welded, multi-segment v-band couplings at the tailpipe to the turbocharger exhaust housing flange (also referred to as “spot-welded, multi-segment exhaust tailpipe v-band coupling”). This AD establishes a life limit for the spot-welded, multi-segment exhaust tailpipe v-band coupling and requires repetitively inspecting the spot-welded, multi-segment exhaust tailpipe v-band coupling. The FAA is issuing this AD to address the unsafe condition on these products.

DATES: This AD is effective July 17, 2023.


Download the complete AD below: