AD: Turbomeca S.A. Turboshaft Engines | 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-11.10.25

AirborneNextGen-
11.11.25

Airborne-Unlimited-11.12.25

Airborne-Unlimited-11.06.25

AirborneUnlimited-11.07.25

LIVE MOSAIC Town Hall (Archived): www.airborne-live.net

Thu, Feb 16, 2012

AD: Turbomeca S.A. Turboshaft Engines

AD NUMBER: 2012-03-11

PRODUCT: Turbomeca Arriel 2B and 2B1 turboshaft engines
SUBJECT: Airworthiness Directive 2012-03-11
ACTION: Final Rule

SUMMARY: The FAA is superseding an existing airworthiness directive (AD) for all Turbomeca S.A. Arriel 2B and 2B1 turboshaft engines.

That AD currently requires checking the transmissible torque between the low-pressure (LP) pump impeller and the high-pressure (HP) pump shaft on high-pressure/low-pressure (HP/LP) pump hydro-mechanical metering units (HMUs) that do not incorporate Modification TU 147.

This new AD requires inspection and possible replacement of the HMU. This AD was prompted by three additional cases of uncoupling of the HP/LP pump HMU LP fuel pump impeller and the HP fuel pump shaft, since the existing AD was issued. The FAA is issuing this AD to prevent an uncommanded in-flight shutdown, which can result in a forced autorotation landing or accident.

DATES: This AD is effective March 20, 2012

FMI: AD

 


Advertisement

More News

NTSB Prelim: Sikorsky UH60 Sikorsky UH-60

Sikorsky UH-60 Black Hawk Helicopter Collided With An Unregistered DJI Mavic 3T Unmanned Aerial Vehicle On July 7, 2025, about 1557 central daylight time, an unregistered Sikorsky >[...]

Aero-News: Quote of the Day (11.13.25)

“After considering the measures taken, minimum liquidity covenants in the Company's current debt obligations and cash flows to maintain current operational obligations requir>[...]

ANN's Daily Aero-Term (11.13.25): Ground Clutter

Ground Clutter A pattern produced on the radar scope by ground returns which may degrade other radar returns in the affected area. The effect of ground clutter is minimized by the >[...]

ANN's Daily Aero-Linx (11.13.25)

Aero Linx: Warbirds of America The EAA Warbirds of America, a division of the Experimental Aircraft Association in Oshkosh, Wisconsin, is a family of owners, pilots and enthusiasts>[...]

Airborne 11.07.25: Affordable Expo Starts!, Duffy Worries, Isaacman!

Also: Louisville UPS Crash Aftermath, Taiwan Boosts Pilot Pool, Spartan Acquires, DON’T MISS the MOSAIC Town Hall! This three-day Affordable Flying Expo brings together indoo>[...]

blog comments powered by Disqus



Advertisement

Advertisement

Podcasts

Advertisement

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