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-04.29.24

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-Linx (05.02.24)

Aero Linx: Model Aeronautical Association of Australia MAAA clubs are about fun flying, camaraderie and community. For over 75 years, the MAAA has been Australia’s largest fl>[...]

ANN's Daily Aero-Term (05.02.24): Touchdown Zone Lighting

Touchdown Zone Lighting Two rows of transverse light bars located symmetrically about the runway centerline normally at 100 foot intervals. The basic system extends 3,000 feet alon>[...]

Aero-News: Quote of the Day (05.02.24)

“Discovery and innovation are central to our mission at Virgin Galactic. We’re excited to build on our successful record of facilitating scientific experiments in subor>[...]

ANN FAQ: Contributing To Aero-TV

How To Get A Story On Aero-TV News/Feature Programming How do I submit a story idea or lead to Aero-TV? If you would like to submit a story idea or lead, please contact Jim Campbel>[...]

NTSB Final Report: Cirrus Design Corp SR20

Student Pilot Reported That During Rotation, “All Of A Sudden The Back Of The Plane Kicked To The Right..." Analysis: The student pilot reported that during rotation, “>[...]

blog comments powered by Disqus



Advertisement

Advertisement

Podcasts

Advertisement

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