N509SS
Operators of this aircraft
Who operated this tail, and how firmly we know it.
No operator established for this aircraft.
Accident & incident history
No NTSB accidents or incidents on file for this aircraft.
Maintenance disclosures
Service Difficulty Reports filed with the FAA for this airframe. Filing is largely voluntary — the number of reports is not a measure of reliability. To verify a report, search its control number at the FAA SDRS site.
4 reports on file, 1995-08-11 – 2010-12-16.
Part: BLADES — DAMAGED (TURBINE WHEEL) · airframe 35,677 hrs · 56,389 cycles
PILOT REPORTED THAT HE HAD A LOSS OF INDICATED TORQUE, SHORTLY FOLLOWED BY IGNITION LIGHT, OIL PRESSURE LIGHT AND A LOSS OF INDICATED OIL PRESSURE. THE ENGINE WAS SHUTDOWN AND LANDED AT DESTINATION. ENGINE TEARDOWN REVEALED THE TURBINE AND COMPRESSOR SEALS FAILED, THE FIRST TURBINE WHEEL HAD SIGNIFICANT BLADE FAILURE AT THE T/E, L/E SHOWED MINIMAL DETERIORATION. THE FIRST STATOR VANES ALSO SHOWED T/E DISTRESS WITH NO SIGNIFICANT L/E DAMAGE. THIS CONDITION IS INDICATIVE OF SLOW OR HUNG STARTS WITH HIGH TEMPS.
Part: BEARING — FAILED (COMPRESSOR)
AIRCRAFT WAS ON APPROACH WHEN LOSS OF POWER WAS NOTED. UPON LANDING, ENGINE QUIT (LOCKED UP). MALFUNCTION - COMPRESSOR BEARING FAILURE CAUSING COMPLETE ENGINE DESTRUCTION. NOTE: S.O.A.P. SAMPLE TAKEN APPROXIMATELY 30 HOURS EARLIER WAS NORMAL. SUBMITTER RECOMMENDED REDUCED LIFE LIMITATION FROM 3600 HRS TO 1000 HRS OR LESS. MANDATORY COMPLIANCE OF SB 72-1074. INSTALLATION OF P/N 3101405-1 OR SB 72-0634 INSTALLING P/N 3103708-1.
Part: FITTING — STRIPPED (ENGINE GEARBOX)
WHILE IN CRUISE FLIGHT, PILOT NOTICED OIL LEAK ON RIGHT ENGINE. ENGINE SECURED AND UNEVENTFUL LANDING MADE. FURTHER INVESTIGATION FOUND SCAVANGE OIL PUMP FITTING THREADS STRIPPED. ENGINE REMOVED AND SENT TO OUTSIDE MAINTENANCE FACILITY FOR REPAIR.
Part: HOUSING — DAMAGED (2ND IMPELLER)
ENGINE WAS SENT IN FOR GBI AND HSI ON 10-14-94 WITH ENGINE TT OF 3,081.8 HOURS. ENGINE WAS RETURNED FOR ITT HARNESS REPLACEMENT AND IT WAS FOUND THAT THE SECOND IMPELLER HOUSING SPRAY METAL HAD BECOME UNATTACHED. VENDOR WAS NOTIFIED AND REPAIRED UNIT. ENGINE WAS REPAIRED AND REASSEMBLED, 87.6 HOURS LATER, ENGINE RETURNED DUE TO LOW POWER. AGAIN, FOUND SECOND IMPELLER HOUSING SPRAY METAL HAD COME UNATTACHED CAUSING MAJOR DAMAGE. VENDOR WAS NOTIFIED AGAIN OF PROBLEM. IMPELLER HOUSING WAS SENT OUT TO THIRD PARTY FOR EVALUATION.