Airworthiness Directive 2002-16-26
recurringAirworthiness Directives; Bombardier-Rotax GmbH Type 912 F and 914 F Series Reciprocating Engines
What this AD requires
This amendment adopts a new airworthiness directive (AD) that is applicable to certain serial numbers (SN's) of Bombardier-Rotax GmbH type 912 F and 914 F series reciprocating engines. This action requires initial and repetitive visual inspections of the engine crankcase for cracks. This amendment is prompted by reports of several instances of engine crankcases found cracked in service. The actions specified in this AD are intended to prevent oil loss caused by cracks in the engine crankcase, which could lead to in-flight failure of the engine and forced landing.
Which aircraft AD 2002-16-26 applies to
AD requires an initial visual inspection within 50 hours TIS of the engine crankcase for cracks (focus on cylinder 1 upper side, between cylinders 1 and 3 upper side, and cylinder 4 lower side), per Bombardier-Rotax SB-912-029 (May 2001) / SB-914-018 Rev 1 (Dec 2001); on engines with a ROTAX cooling air baffle, oil leaks in those areas must be investigated as a possible indicator of cracks. Repetitive inspections required at each 100-hour/annual/progressive inspection or within 110 hours TIS since the last inspection, whichever occurs first; cracked crankcases require engine replacement before further flight.
Whether AD 2002-16-26 actually applies to your aircraft (by serial and installed parts) and whether it’s already complied with comes from that aircraft’s records.
How AD compliance is recorded
A valid compliance record (14 CFR 43.9) states:
Tailplate reads a tail number’s logbooks and matches every applicable AD — including this one — to its compliance evidence, with recurring next-due dates computed.
Look up a tail number →Read the full directive (Federal Register)Applicability is derived from the FAA directive corpus and is advisory, not a legal airworthiness determination. Compliance is established only from an aircraft’s actual records.