Airworthiness Directive · Amendment 39-10729 · SOCATAGroupe AEROSPATIALE Models TB20 and TB21 Airplanes
SOCATAGroupe AEROSPATIALE Models TB20 and TB21 Airplanes
Models TB20 and TB21 airplanes, serial numbers 1 through 9999, certificated in any category.
This amendment adopts a new airworthiness directive (AD) that applies to certain SOCATA--Groupe AEROSPATIALE (Socata) Models TB20 and TB21 airplanes. This AD requires repetitively inspecting the main landing gear (MLG) attachment bearing (using a dye penetrant method) for cracks, and if cracks are found, replacing the bearing. This AD is the result of mandatory continuing airworthiness information (MCAI) issued by the airworthiness authority for France. The actions specified by this AD are intended to detect and correct cracks in the MLG attachment bearing, which could result in collapse of the main landing gear during taxi and 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.
Aircraft
