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Interim Recommendation issued to: Ansett Australia

Recommendation details
Output No: IR19990023
Date issued: 19 March 1999
Safety action status:
Background: Why this Interim Recommendation was developed

Output text

The Bureau of Air Safety Investigation recommends that Australian operators of Boeing 737 note the above safety deficiency and interim recommendations and take appropriate action as considered necessary to ensure the integrity of Boeing 737 main landing gear actuator beam arm assemblies.

As a result of investigation into this occurrence, the Bureau simultaneously issues the following interim recommendations:

IR990019

The Bureau of Air Safety Investigation recommends that Boeing Commercial Airplane Group alert Boeing 737 operators to this safety deficiency and implement an appropriate inspection program.

IR990020

The Bureau of Air Safety Investigation recommends that Boeing Commercial Airplane Group review the effectiveness of Service Bulletin 737-32A1224.

IR990021

The Bureau of Air Safety Investigation recommends that the Federal Aviation Administration note the above safety deficiency and interim recommendations and take appropriate action as considered necessary to ensure the integrity of Boeing 737 main landing gear actuator beam arm assemblies.

IR990022

The Bureau of Air Safety Investigation recommends that the Civil Aviation Safety Authority initiate appropriate action to ensure that Australian operators of Boeing 737 aircraft immediately inspect all main landing gear actuator beam arm assemblies for evidence of cracking.

Initial response
Date issued: 15 April 1999
Response from: Ansett Australia
Action status: Closed - Accepted
Response text:

Interim Recommendation IR 990023 (occurrence 991073)

I refer to your letter of 19 March 1999 which enclosed the above recommendations.

As you are aware the company conducted initial visual checks and then NDT inspections of the affected area of the B737 landing gear. All the inspections were completed some weeks ago. We found another failed part in VH-CZU and those components have been sent to BASI for analysis.

The company has received no further information from the manufacturer at this time.

 

 
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Last update 01 April 2011