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

** Airborne 09.15.14 ** HD iPad-Friendly -- Airborne 09.15.14 **
** Airborne 09.12.14 ** HD iPad-Friendly -- Airborne 09.12.14 **
** Airborne 09.10.14 ** HD iPad-Friendly -- Airborne 09.10.14 **

Wed, May 16, 2007

AD: Turbomeca

AD NUMBER: 2007-10-06
MANUFACTURER: Turbomeca
SUBJECT: Airworthiness Directive 2007-10-06
SUMMARY:
We are adopting a new airworthiness directive (AD) for the products listed above. This AD results from mandatory continuing airworthiness information (MCAI) issued by an aviation authority of another country to identify and correct an unsafe condition on an aviation product. The MCAI describes the unsafe condition as: Two cases of flameout have been reported on Arriel 2B1 engines: One when lowering collective pitch on ground at landing and one when switching from Flight Position to idle Position on ground. Both flameout events are explained as follows: In caseof stepper motor loss of steps to a value below the 'level 1 failure' detection threshold, the fuel flow of the anti-flameout limit can be reduced. The reduction can be sufficient to cause engineflameout when decreasing rapidly the demand for power (it can therefore also happen in-flight). This condition may lead to an uncommanded in-flight shutdown. On a single-engine helicopter, the result may be emergency autorotation landing or, at worst, an accident. To prevent this, software version 5.02 (TU 144C) increases the anti-flameout limit in the event of small steppermotor loss of steps (below the 'level 1 failure' detection threshold). This AD requires actions that are intended to address the unsafe condition described in the MCAI.

FMI: www.faa.gov/regulations_policies/airworthiness_directives/

Advertisement

More News

Airborne 09.15.14: ForeFlight's iOS8 Caution, Boeing v Al Jazeera, Expedition 40

Also: EAA On NTSB Drug Study, Remember 'Ripcord?', FAA Loosens Up In SAR UAV Use, Curiosity Arrives At Martian Mount, IAF Worries About Social Media With much fanfare, Apple rolled>[...]

Airborne 09.12.14: Alan Klapmeier's $10M Win, OWW Progress, 3rd Class Update

Also: Zero-G Engine Repo, Collier Trophy, EAA Addresses FAA Hangar Use, CAF's Dallas Air Expo While it comes as no surprise to those of us that have had to deal with Cirrus Aircraf>[...]

Airborne 09.15.14: ForeFlight's iOS8 Caution, Boeing v Al Jazeera, Expedition 40

Also: EAA On NTSB Drug Study, Remember 'Ripcord?', FAA Loosens Up In SAR UAV Use, Curiosity Arrives At Martian Mount, IAF Worries About Social Media With much fanfare, Apple rolled>[...]

AD: Sikorsky Aircraft Corporation (Sikorsky) Helicopters

AD NUMBER: 2014-07-04R1 PRODUCT: Certain Sikorsky Model S-92A helicopters.>[...]

AD: DG Flugzeugbau GmbH Gliders

AD NUMBER: 2013-22-14 R1 PRODUCT: Any DG Flugzeugbau GmbH Model DG-1000T glider equipped with a Solo Kleinmotoren Model 2350 C engine.>[...]

blog comments powered by Disqus



Advertisement

Advertisement

Podcasts

Advertisement

© 2007 - 2014 Web Development & Design by Pauli Systems, LC