The FAA has approved Continental Aerospace Technologies’ Global alternative method of compliance (AMOC) to Airworthiness Directive (AD) 2023-09-09. This AD addresses an unsafe condition affecting turbocharged, reciprocating engine-powered airplanes and helicopters, as well as turbocharged, reciprocating engines equipped with spot-welded, multi-segmented couplings at the tailpipe to turbocharger exit exhaust.
The AMOC applies to V-band coupling Continental Part Number 653332 installed on certain engine models, as identified in the AMOC. It requires repetitive inspections and removal of the V-band coupling if it fails any inspection. Removal is also required before reaching the time-in-service (TIS) hours defined in the AMOC, 12 years after being placed in service, or by April 15, 2026, whichever occurs first. This AMOC applies only to V-band couplings with known hours TIS. Additional limitations are detailed in the AMOC.