AD: Sikorsky | Aero-News Network
Aero-News Network
RSS icon RSS feed
podcast icon MP3 podcast
Subscribe Aero-News e-mail Newsletter Subscribe

Airborne Unlimited -- Most Recent Daily Episodes

Episode Date

Airborne-Monday

Airborne-Tuesday

Airborne-Wednesday Airborne-Thursday

Airborne-Friday

Airborne On YouTube

Airborne-Unlimited-05.06.24

Airborne-NextGen-04.30.24

Airborne-Unlimited-05.01.24 Airborne-AffordableFlyers--05.02.24

Airborne-Unlimited-05.03.24

Tue, Apr 28, 2009

AD: Sikorsky

AD NUMBER: 2009-07-53

MANUFACTURER: Sikorsky
SUBJECT: Airworthiness Directive 2009-07-53
SUMMARY: This document publishes in the Federal Register an amendment adopting Airworthiness Directive (AD) 2009-07-53, which was sent previously to all known U.S. owners and operators of Sikorsky Aircraft Corporation (Sikorsky) Model S-92A helicopters by individual letters. This amendment is prompted by the failure of 2 main gearbox filter bowl assembly studs (studs) that were found broken during a fatal accident investigation in Canada. Prior to the accident, the manufacturer was investigating a July 2008 incident that also involved broken studs. In both cases, the broken studs resulted in rapid loss of oil. The failures have been tied to fretting and galling of the original titanium studs; therefore, this AD requires removing all titanium studs and replacing them with steel studs. The actions specified by this AD are intended to prevent failure of a stud, which could result in rapid loss of oil, failure of the main gearbox, and subsequent loss of control of the helicopter.

FMI: http://rgl.faa.gov/Regulatory_and_Guidance_Library/rgAD.nsf/0/191E86EF5E4CD5AC862575A50048B6BA?OpenDocument

Advertisement

More News

ANN's Daily Aero-Term (05.07.24): Hazardous Weather Information

Hazardous Weather Information Summary of significant meteorological information (SIGMET/WS), convective significant meteorological information (convective SIGMET/WST), urgent pilot>[...]

ANN's Daily Aero-Linx (05.07.24)

Aero Linx: The T-6 Racing Association The T-6 Racing Association is all about T-6‘s and racing. Our mission is to bring great racing to our fans in Reno and other venues wher>[...]

Airborne 05.01.24: WACO Kitchen, FAA Reauthorization, World Skydiving Day

Also: Electra Aero, AMO-CBP v Smugglers, Naval King Airs, Boeing Deal To the surprise of everyone involved, Waco Kitchen shut down both airport operations with little warning and h>[...]

Airborne Affordable Flyers 05.02.24: Bobby Bailey, SPRG Report Cards, Skydive!

Also: WACO Kitchen Bails, French SportPlane Mfr to FL, Dynon-Advance Flight Systems, Innovation Preview Bobby Bailey, a bit of a fixture in sport aviation circles for his work with>[...]

Airborne 05.03.24: Advanced Powerplant Solutions, PRA Runway Woes, Drone Racing

Also: Virgin Galactic, B-29 Doc to Allentown, Erickson Fire-Fighters Bought, FAA Reauthorization After dealing with a big letdown after the unexpected decision by Skyreach to disco>[...]

blog comments powered by Disqus



Advertisement

Advertisement

Podcasts

Advertisement

© 2007 - 2024 Web Development & Design by Pauli Systems, LC