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-09.16.24

Airborne-NextGen-09.17.24

 Airborne-Unlimited-09.18.24

Airborne-FlightTraining-09.19.24

Airborne-Unlimited-09.20.24

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 (09.17.24): Instrument Approach Procedure (IAP) Charts

Instrument Approach Procedure (IAP) Charts Portray the aeronautical data which is required to execute an instrument approach to an airport. These charts depict the procedures, incl>[...]

Aero-News: Quote of the Day (09.17.24)

“Our industry is approaching a 30-year innovation cycle, and we have less than 25 years to decarbonize aviation. We need to develop new methods to get net zero aerospace tech>[...]

Airborne 09.16.24: Bristell Shooting, EAA v FAA, Boeing Strike!

Also: Girls in Aviation Day, B-29 Doc Heads 4 Chino, C-17 Tail Cone Detaches, Bulgaria Airshow Accident One of two private aircraft that launched from Apatity Airport near Murmansk>[...]

Classic Aero-TV: CubCrafters NX Cub-A Stunning Effort To Build The ‘Perfect Cub'

From 2021 (YouTube Version): We Were Blown Away At How Well The Nosewheel Was Adapted To The X Cub Airframe It should not be a secret to any one of you, that with thousands of hour>[...]

Airborne 09.18.24: Boom XB-1 3rd Test, DJI Ban, SubSonex To EAA Museum

Also: Volato Nixed by Honda, New B-21 Bases, A-10 Unit Inactivated, Gogo/Airshare Boom Supersonic announced its demonstrator aircraft XB-1 successfully completed its third test fli>[...]

blog comments powered by Disqus



Change Display

Headlines Only | Headlines w/ Teasers | View Everything

Advertisement

Top Videos

Airborne 09.20.24: Musk May Sue FAA, Van's Parts Issues, USMC Honors Hero

Airborne-Flight Training 09.19.24: ATP Sued, USAF TPS Update, SWA Training

Airborne 09.18.24: Boom XB-1 3rd Test, DJI Ban, SubSonex To EAA Museum

See All

Advertisement

Podcasts

Advertisement

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