Airworthiness Directive · Amendment 39-9873 · Cessna Aircraft Company Airplanes
Cessna Aircraft Company Airplanes
This AD applies to Cessna Aircraft Company 525.
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 certain Cessna Aircraft Company (Cessna) Model 525 airplanes. This action requires repetitively inspecting the main landing gear (MLG) trunnion pins for proper installation, and either immediately or eventually replacing the existing dry-film lubricated MLG trunnion slot bearings with sealed and self-lubricating bearings. This AD results from an incident where the left MLG collapsed during the landing roll even though the cockpit indications showed that the MLG was in the normal down and locked position. Loss of dry-film lubricant on the MLG trunnion bearings caused this incident. The actions specified by this AD are intended to prevent MLG collapse caused by trunnion bearing failure, which could result in loss of control of the airplane during landing operations.
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.
