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Recommendation issued to: Australian Civil Aviation Safety Authority

Recommendation details
Output No: R20010192
Date issued: 18 September 2001
Safety action status:
Background: Why this Recommendation was developed

Output text

The Australian Transport Safety Bureau recommends that the Australian Civil Aviation Safety Authority assess the adequacy of the Turbomeca Arriel engine MO3 bearing lubrication installation to determine if it meets the applicable design standard requirements to ensure the continued airworthiness of relevant Australian registered aircraft.

Initial response
Date issued: 25 February 2002
Response from: Civil Aviation Safety Authority
Action status: Closed - Not Accepted
Response text:

I refer to your letter dated 18 September 2001 notifying CASA of Air Safety Recommendations which relate to Occurrence No. 200103038 on the serious incident involving a Sikorsky S76C helicopter, VH-EXX, which occurred 45km east of Longford Helicopter Landing Site, Vic on 11 July 2001. Please accept my apologies for the delay in my reply.

In response to the Recommendations R20010192 and R20010196, CASA advises the following:

Recommendation R20010192

The Australian Transport Safety Bureau recommends that the Civil Aviation Safety Authority assess the adequacy of the Turbomeca Arriel engine M03 bearing lubrication installation to determine if it meets the applicable design standard requirements to ensure the continued airworthiness of relevant Australian registered aircraft.

CASA advised the Direction Generale de L'Aviation Civile (DGAC) of the ATSB determination that an engine fire occurred as a result of engine failure. CASA notes that the DGAC does not support the ATSB determination. CASA has no evidence of the Turbomeca Arriel Module 3 bearing lubrication system not satisfying turbine engine certification standards. CASA notes that the DGAC, in advice to the ATSB dated 31 December 2001, has determined the Arriel 1 engine complies with the latest requirements of JAR-E-530 "Fire".

Further correspondence
Date issued: 25 March 2002
Response from: Civil Aviation Safety Authority
Response status: Closed - Not Accepted
Response text:

Thank you for providing a copy of draft Air Safety Occurrence Report 200103038 and daft Technical Analysis Report No 34/01 on the serious incident involving Sikorsky S76C helicopter VH-EXX which occurred at Brisbane Aerodrome, QLD on 18 October 2001 with recommendations R20010192 and R20010196.

It is noted that Australian Transport Safety Bureau (ATSB) specialist staff have been in close communication with CASA officers regarding this Esso S76C engine failure, to the mutual advantage of both parties. The reports are comprehensive and consistent in indicating that Arriel modification TU204 contributed towards the engine failure.

CASA's response to recommendations R20010192 and R20010196, which were originally received by CASA in September 2001, was forwarded to the ATSB on 22 February 2002. CASA has reviewed draft Air Safety Occurrence Report 200103038 and reiterates the comments made in our response of 22 February 2002. A copy of this letter is enclosed. [ATSB Note: this letter is the one contained in the response from CASA on 22 February 2002].

ATSB response:

The DGAC response was not adequate and did not address the hazard and discrepancy with the design as identified.

 
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Last update 16 January 2013