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-05.12.25

Airborne-NextGen-05.13.25

AirborneUnlimited-05.14.25

Airborne-FlightTraining-05.15.25

AirborneUnlimited-05.16.25

Fri, Apr 11, 2014

AD: Turbomeca S.A. Turboshaft Engines

AD NUMBER: 2014-07-06

PRODUCT: All Turbomeca S.A. Arriel 2B1 turboshaft engines that do not have modification TU157 incorporated.
SUBJECT: Airworthiness Directive 2014-07-06
ACTION: Final Rule

SUMMARY: The FAA is superseding airworthiness directive for the product listed above. (AD) 2007-19-09R1 for  AD 2007-19-09R1 required replacement of the hydromechanical metering unit (HMU) with a serviceable HMU.

This AD requires HMU replacement; reduction of the compliance interval; and inclusion of the power turbine C2 cycle consumption rate when determining compliance times.

This AD was prompted by reports of ruptures on HMU constant delta pressure valves that have less than 2,000 hours in service. The FAA is issuing this AD to prevent failure of the HMU, which could lead to damage to the engine, and damage to the aircraft.

DATES: This AD is effective May 15, 2014.

FMI: AD

Advertisement

More News

NTSB Prelim: Hy-Tek Hurricane HP

About 100 Ft Above Ground Level, The Engine Lost Total Power On April 14, 2025, about 1003 Pacific daylight time, an experimental amateur-built Hy-Tek Hurricane HP, N9088G, was sub>[...]

ANN's Daily Aero-Term (05.14.25): 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>[...]

Aero-News: Quote of the Day (05.14.25)

“While our traditional mechanical magnetos will be around for a long time, Hartzell Engine Tech acquired E-MAG to expand its PowerUP Ignition System product portfolio into bo>[...]

ANN's Daily Aero-Term (05.15.25): Primary Radar

Primary Radar A radar system in which a minute portion of a radio pulse transmitted from a site is reflected by an object and then received back at that site for processing and dis>[...]

Airborne 05.12.25: $1M Flying Car, Marion Airport Saved, AirVenture Cup

Also: ‘Sonoran Beauty’ Jump-Qualified, IAG Orders, FAA Shuts Down ATC Oversight, EAA Joins Modern Skies Slovakia-based developer Klein Vision recently unveiled the prod>[...]

blog comments powered by Disqus



Advertisement

Advertisement

Podcasts

Advertisement

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