Aviation safety issues and actions
Recommendation issued to: BF Goodrich Aerospace
|Date issued:||09 December 2005|
|Safety action status:|
|Background:||Why this Recommendation was developed|
The Australian Transport Safety Bureau recommends that BF Goodrich Aerospace formalise instructions to operators and maintenance organisations for the periodic inspection, based upon BFG SL 1714, of all Boeing 727 main landing gear wheels that have undergone a hub bushing repair.
|Date issued:||15 June 2006|
|Response from:||BF Goodrich Aerospace|
|Action status:||Closed - Not Accepted|
Information received during discussions with engineering staff from the Wheel and Brake System Division of Goodrich Aerospace indicated that while the company accepted the intent of ATSB safety recommendation R20050005, it was not planning to implement any formal changes to guidance materials provided to operators and maintenance organisations, in respect to the application of BFG SL 1714. Supporting this position, Goodrich Aerospace indicated that although the sleeve-type wheel repair was relatively common, the cracking failure as sustained during the subject occurrence was considered rare, with an estimated total of 20-30 occurrences known world-wide over the life of the product. Additionally, there have been no known instances of wheel failure occurring at a time where the failure presented a direct threat to operational safety. All previously known failures had been detected during walk-around or maintenance inspection routines. As such, Goodrich Aerospace considered that the specification of an additional maintenance practice, with appreciable implementation costs, was not warranted in the context of achieving a definitive enhancement to existing levels of safety. The application of BFG SL 1714 remains at the discretion of operators and maintenance organisations, based on service experience and local policy and procedures.