AD NUMBER: 2008-13-26
SUBJECT: Airworthiness Directive 2008-13-26
SUMMARY: We are adopting a new airworthiness directive
(AD) for certain Lockheed Model 1329 series airplanes.
This AD requires determining the part number on the steering
cylinder assembly for the nose landing gear (NLG), determining the
total flight cycles accumulated on the NLG steering cylinder
assembly, repetitively replacing the assembly, inspecting for
missing tow turning limit markings, and performing corrective
actions if necessary.
This AD results from reports of numerous failures of the NLG
steering cylinder. We are issuing this AD to prevent the loss of
hydraulic pressure and steering control.