Airworthiness Directive · Amendment 39-11505 · British Aerospace BAe Model ATP Airplanes
British Aerospace BAe Model ATP Airplanes
All BAe Model ATP airplanes, certificated in any category.
This amendment adopts a new airworthiness directive (AD), applicable to all British Aerospace BAe Model ATP airplanes, that requires a one-time inspection of the orientation of certain bolts of the rudder standby control system (SCS), and reinstallation of the bolts, if necessary. This amendment is prompted by issuance of mandatory continuing airworthiness information by a foreign civil airworthiness authority. The actions specified by this AD are intended to prevent uncommanded engagement of the rudder SCS, which could result in reduced controllability of the airplane.
Required as indicated, unless accomplished previously.
To prevent uncommanded engagement of the rudder standby control system (SCS), accomplish the following:
(a) Within one year after the effective date of this AD, perform a one-time general visual inspection of the orientation of the bolts in the rudder SCS, in accordance with British Aerospace Service Bulletin ATP-27-86, dated May 15, 1999. If any bolt is incorrectly installed, as specified by Figure 1 of the service bulletin, prior to further flight, remove and reinstall the bolt in accordance with the service bulletin.
Note 2: For the purposes of this AD, a general visual inspection is defined as: ``A visual examination of an interior or exterior area, installation, or assembly to detect obvious damage, failure, or irregularity. This level of inspection is made under normally available lighting conditions such as daylight, hangar lighting, flashlight, or drop-light, and may require removal or opening of access panels or doors. Stands, ladders, or platforms may be required to gain proximity to the area being checked.''
