AD/LYC/111 Lycoming Engines Last Overhauled by Provence Aero Maintenance France (Cth)

AIRWORTHINESS DIRECTIVE

For the reasons set out in the background section, the CASA delegate whose signature appears below issues the following Airworthiness Directive (AD) under subregulation 39.001(1) of CASR 1998.  The AD requires that the action set out in the requirement section (being action that the delegate considers necessary to correct the unsafe condition) be taken in relation to the aircraft or aeronautical product mentioned in the applicability section: (a) in the circumstances mentioned in the requirement section; and (b) in accordance with the instructions set out in the requirement section; and (c) at the time mentioned in the compliance section.

Lycoming Piston Engines

AD/LYC/111 Lycoming Engines Last Overhauled by Provence Aero Maintenance France 4/2005

Applicability:

All Textron Lycoming piston engines, last overhauled on or after 01 October 1997 by Provence Aéro Maintenance, France; and,

All engine parts for Textron Lycoming piston engines released on or after 01 October 1997 by Provence Aéro Maintenance, France.

Note 1:  Provence Aéro Maintenance has been operating at the following two addresses:

·    13728 Marignane, France.

·    Route des Cravons, 13130 Berre l'Etang, France.

Requirement:

1.    Submit the following information to DGAC SFACT / N.ME on Fax Number 0011-33-1-5809-4319 and obtain the last date for conformity inspection and serviceability restoration.

(a)   JAA Form 1 copy,

(b)   Flight hours since last overhaul,

(c)   Details of maintenance done since last overhaul,

(d)   Details on significant maintenance actions, findings of improperly performed work and steps taken for restoration, if any.

2.    Send engine(s) and engine part(s) to CASA approved engine overhaul shop for conformity inspection and restoration.

Note 2:  French DGAC Airworthiness Directive F-2005-023 dated 02 February 2005 refers.

Compliance:

1.    Unless already accomplished, with in 30 days after the effective date of this AD.

2.    As per date advised by French DGAC or 90 days after the effective date of this AD, whichever is later.

If no response is received from DGAC within 30 days of complying with the requirement 1 of this Directive, contact CASA on Fax [phone] or email [email protected] and provide all the information specified in requirement 1.

This Airworthiness Directive becomes effective on 14 April 2005.

Background:

Investigation of an engine failure, involving a failed crankcase, at a low engine life of 192 flight hours since last overhaul, revealed improperly assembled crankshaft counterweight bearing.  Numerous other non-conformities were apparent too, like use of non-conforming crankcase bolts and rod bolts, missing nuts and improperly installed clips.

This engine was overhauled by Provence Aéro Maintenance, France on 18 November 1998. As a result of these findings, French DGAC cancelled JAR 145 approval for Provence Aéro Maintenance.

There is no guarantee that other engines overhauled by or engine parts released by Provence Aéro Maintenance will have no similar non-conformities.

Non-conformities such as above may affect safety of flight and the actions specified in this AD address that identified unsafe condition.

James Coyne
Delegate of the Civil Aviation Safety Authority

4 March 2005