Document ID: chunk:federal_register_of_legislation:F2005L02060:body:0:p2
Version: federal_register_of_legislation:F2005L02060
Segment Type: other
Provision Reference: 
Character Range: 2875–3974

sure that the operator does not assemble the axle nut without the spacer.  Fokker subsequently issued SB F100-32-096 to notify Fokker 100 operators of the (optional) Messier-Dowty SB's existence.

Background:  At a later stage, Fokker revised the SB to the status of 'recommended".  In spite of all this attention to the spacer problem, wheel losses are still being reported due to missing wheel nut spacers.  This condition, if not corrected, may lead to further wheel loss incidents, each of which could conceivably result in loss of control of the aircraft during the take-off run, landing rollout or taxiing operations.  Since a potentially unsafe condition has been identified that may exist or develop on aircraft of the same type design, this Airworthiness Directive requires the replacement of the axle-nut and spacer with an integrated axle-nut/spacer assembly.  In addition, the AMM and IPC must be amended to prevent reversal to a separate axle- nut and spacer installation during a subsequent wheel change.

David Villiers
Delegate of the Civil Aviation Safety Authority

21 July 2005