AD: MD Helicopters, Inc. | 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-10.20.25

AirborneNextGen-
10.21.25

Airborne-Unlimited-10.22.25

Airborne-FltTraining-10.23.25

AirborneUnlimited-10.17.25

Wed, Oct 24, 2012

AD: MD Helicopters, Inc.

AD NUMBER: 2012-21-01

PRODUCT: MD Helicopters, Inc. (MDHI), Model MD900 helicopters.
SUBJECT: Airworthiness Directive 2012-21-01
ACTION: Final Rule

SUMMARY: The FAA is adopting a new airworthiness directive (AD) to supersede an existing airworthiness directive for the product listed above.

The existing AD requires a visual inspection, and if necessary, an eddy current inspection of the main rotor lower hub assembly (lower hub) for a crack. If a crack exists, the AD requires replacing the lower hub with an airworthy lower hub before further flight. Because that AD was immediately effective, we declined to require certain long-term actions prior to public comment.

This superseding AD will require the same inspections as the existing AD but will also require long-term recurring inspections and replacing the lower hub with an airworthy lower hub. The FAA is issuing this AD to detect a crack in the lower hub and prevent failure of the lower hub and subsequent loss of control of the helicopter.

DATES: This AD is effective November 27, 2012.

FMI: AD

Advertisement

More News

Airborne-Flight Training 10.23.25: PanAm Back?, Spirit Cuts, Affordable Expo

Also: USAF Pilots, Advanced Aircrew Academy, ATC Hiring, Hop-A-Jet Sues Pan American is attempting a comeback. Aviation merchant bank AVi8 Air Capital, alongside Pan American Globa>[...]

Airborne-Flight Training 10.23.25: PanAm Back?, Spirit Cuts, Affordable Expo

Also: USAF Pilots, Advanced Aircrew Academy, ATC Hiring, Hop-A-Jet Sues Pan American is attempting a comeback. Aviation merchant bank AVi8 Air Capital, alongside Pan American Globa>[...]

Airborne 10.22.25: Rez Takes Plane, DJI v US Drone Ban, HK 747 Cargo Accident

Also: DHS Under Fire, Air New Zealand, ALPA Praises Bipartisan Bill, Spirit Budget Cuts The Minnesota Pilots Association has issued an advisory regarding overflights of the Red Lak>[...]

Classic Aero-TV: Portrait of the U.S. Transportation Safety Institute

From 2023 (YouTube Edition): Beauty Amongst Ghastly Federal Agencies Founded in 1971 and based in Oklahoma City, the Transportation Safety Institute (TSI) is a subsidiary of the U.>[...]

ANN's Daily Aero-Term (10.21.25): Flight Check

Flight Check A call sign prefix used by FAA aircraft engaged in flight inspection/certification of navigational aids and flight procedures. The word “recorded” may be a>[...]

blog comments powered by Disqus



Change Display

Headlines Only | Headlines w/ Teasers | View Everything

Advertisement

Top Videos

Airborne 10.03.25: Phantom 3500 Buy, ‘Chinese Military Company’, NOTAM Redesign

Airborne Affordable Flyers 10.02.25: MOSAIC Start Date, AFE25 Tickets, ePulitzer

Airborne 10.01.25: New Gulfstream G300, Affordable Flying Expo Tkts, Starship 11

See All

Advertisement

Podcasts

Advertisement

© 2007 - 2025 Web Development & Design by Pauli Systems, LC