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2003-19-06: Gas generator high pressure (HP) turbine disk

FAA order 2003-19-06 is an airworthiness directive in force since October 22, 2003. The FAA's subject line: Gas generator high pressure (HP) turbine disk. It names the Turbomeca (Safran) ARRIUS 2B1, Turbomeca (Safran) ARRIUS 2B1A, Turbomeca (Safran) ARRIUS 2K1 engines: about 15 aircraft on the U.S. register today across them, though an order usually covers particular versions or serial numbers rather than every one. System: engine.

What it applies to as the FAA lists it

Kind of product: Engine
Makes: Turbomeca S.A.
Models: Arrius 2B1, Arrius 2B1A, Arrius 2K1
Engine series: Turbomeca (Safran) ARRIUS 2B1 13 aircraft
Turbomeca (Safran) ARRIUS 2B1A 1 aircraft
Turbomeca (Safran) ARRIUS 2K1 1 aircraft

Dates and paperwork

In force since: October 22, 2003
Published: September 17, 2003 (signed September 11, 2003)
Docket: 2003-NE-05-AD
Status: Current
The FAA's document: Read the order on the FAA's site

The FAA's summary their words, unchanged

The FAA is adopting a new airworthiness directive (AD) for Turbomeca S.A. Arrius 2 B1, 2 B1A, 2 B1A 1, and 2 K1 turboshaft engines. This AD requires replacement of the gas generator high pressure (HP) turbine disk before further flight after the engine has accumulated 5 minutes of operating time at the 2 1/2 minute one engine inoperative (OEI) power rating. This amendment is prompted by a failure of an HP turbine blade during accelerated aging simulation tests performed by the manufacturer on an Arrius 2 B1A engine. We are issuing this AD to prevent engine failure of the only operating engine while experiencing an OEI condition.

The order itself the regulatory text, as published

Show the full text (1,650 characters)

2003-19-06 Turbomeca S.A.: Amendment 39-13309. Docket No. 2003-NE- 05-AD. 

Effective Date 

	(a) This AD becomes effective October 22, 2003. 

Affected ADs 

	(b) None. 

Applicability 

	(c) This AD applies to Turbomeca S.A. Arrius 2 B1, 2 B1A, 2 B1A 1, and 2 K1 turboshaft engines. These engines are installed on, but not limited to, Eurocopter Deutschland GmbH model EC135 T1 and Agusta S.p.A. model A109 helicopters. 

Unsafe Condition 

	(d) This AD is prompted by a failure of an HP turbine blade during accelerated aging simulation tests performed by the manufacturer on an Arrius 2 B1A engine. The actions specified in this AD are intended to prevent engine failure of the only operating engine while at one engine inoperative (OEI) condition. 

Compliance 

	(e) You are responsible for having the actions required by this AD performed within the compliance times specified unless the actions have already been done. 

	(f) After the effective date of this AD, replace the gas generator HP turbine disk before further flight after the engine has accumulated 5 minutes operating time at the 2 1/2 minute OEI power rating. 

Alternative Methods of Compliance 

	(g) The Manager, Engine Certification Office, has the authority to approve alternative methods of compliance for this AD if requested using the procedures found in 14 CFR 39.19. 

Material Incorporated by Reference 

	(h) None. 

Related Information 

	(i) The subject of this AD is addressed in DGAC airworthiness directive 2003-098(A), dated March 5, 2003, and Turbomeca S.A. Alert Service Letters No. 2174/02/ARRIUS2B1/19 and No. 2175/02/ARRIUS2K1/ 3, both dated July 30, 2002.

Source: FAA Dynamic Regulatory System, airworthiness directives. The FAA's document is the authority; the register counts are this site's, from the FAA register of October 7, 2026. Connections as data: /graph/directive/2003-19-06.json · aircraft systems.