Airworthiness Directive · Amendment 39-9648 · Continental Motors Engines
Continental Motors Engines
This AD applies to Continental Motors O-200-A, O-200-B, RR O-200-A, RR O-200-B, RR O-200-C.
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 supersedes two existing airworthiness directives (AD's), applicable to Teledyne Continental Motors and Rolls-Royce, plc O-200 series reciprocating engines, that currently require resetting engine timing to 24o Before Top Center (BTC). This amendment returns to the 28o BTC engine timing for those engines equipped with improved cylinders that have strengthened heads. In addition, this amendment drops the TCM O-200C model which never went into production. This amendment is prompted by the availability of improved cylinders. The actions specified by this AD are intended to prevent possible cylinder cracking with subsequent loss of engine power.
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.
Engines
