Airworthiness Directive · Amendment 39-9141 · Vickers-Armstrongs (Aircraft Limited) Airplanes
Vickers-Armstrongs (Aircraft Limited) Airplanes
This AD applies to Vickers-Armstrongs (Aircraft Limited) Viscount 744, Viscount 745D, Viscount 810.
The models as the FAA's AD index lists them. The serial ranges, installed parts and exceptions are in the AD itself: read it at the FAA.
This amendment adopts a new airworthiness directive (AD), applicable to all British Aerospace Model Viscount 744, 745D, and 810 series airplanes, that requires repetitive inspections to detect fatigue cracking in the pivot pins that attach both nose wheel steering actuators to the steering head assembly, and replacement of cracked pins. This amendment is prompted by a reported failure of a pivot pin due to fatigue cracking. The actions specified by this AD are intended to prevent failure of the pivot pin, which could result in the loss of nose wheel steering capability.
