Airworthiness Directive · Amendment 39-8837 · Twin Commander Aircraft LLC Airplanes
Twin Commander Aircraft LLC Airplanes
Superseded. A later AD replaced this one: AD 98-07-17. Comply with the one in force.
This AD applies to Twin Commander Aircraft LLC 500, 500-A, 500-B, 500-S, 500-U, 520, 560, 560-A, 560-E, 560-F, 680, 680-E, 680-F, 680-FL, 680-FL(P), 680-F(P), 680-T, 680-V, 680-W, 681, 685, 690, 690A, 690B, 690C, 690D, 695, 695A, 695B, 720.
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) that applies to Twin Commander Aircraft Corporation (Twin Commander) 500, 520, 560, 680, 681, 685, 690, 695, and 720 series airplanes. This action requires inspecting the flap system for cables with broken wires or pulleys with worn cable clips, replacing any damaged parts, and replacing the master pulley and cable with new parts of improved design. Reports of cable fatigue, particularly the master pulley cable, on several of the affected airplanes prompted this action. The actions specified by this AD are intended to prevent flap system failure caused by cable fatigue, which could result in loss of control of the airplane.
The aircraft, engines and makers this AD names, by the model designations in its text. A model listed here may still be outside the AD's serial ranges.
Aircraft
