These match the airframe or engine model. Whether each one applies, and whether it's been complied with, depends on serial numbers, equipment and logbook entries. Applicability must be confirmed by a mechanic against the aircraft's records.
Pratt & Whitney R-1340 Series Reciprocating Engines
Jul 19, 1999
Engine (R1340 SERIES)
AI-extracted — verify against original. Matched from each AD's applicability section; ADs replaced by a later AD are left out.
Service Difficulty Reports (1)
Reports of failures and defects that operators and repair stations sent to the FAA since 1995. A report describes one finding; it is not an accident.
Reciprocating engine · link rod · failedJul 6, 1997
DURING AERIAL APPLICATION OPERATIONS, NR 9 CYLINDER CONNECTING ROD FAILED AT MASTER ROD CONNECTION PIN. SEVERE IMPACT DAMAGE TO ROD. PISTON CONTACTED CYLINDER HEAD WHICH BROKE INTO 3 PIECES. CAUSE OF FAILURE UNKNOWN AT THIS TIME.
From FAA Service Difficulty Reports; matched by N-number and serial number.