N401SX
Registered owner: HYANNIS AIR SERVICE INC, MA (owner ≠ operator)
Operators of this aircraft
Who operated this tail, and how firmly we know it.
| Operator | Role | Period | Basis |
|---|---|---|---|
| Hyannis Air Service Inc. (HYIA) | Certificate holder | — | Matched by certificate designator |
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.
5 reports on file, 1997-07-04 – 2023-08-30.
Part: BEAM — CRACKED (ZONE 400) · airframe 24,516 hrs · 10,330 cycles
DURING MAINTENANCE A CRACK WAS VISUALLY IDENTIFIED ON THE RIGHT HAND CROSSOVER BEAM (OEM P/N: 5654104-12) OF N401SX (402C0447). THIS CRACK IS LOCATED ON THE AFT FACE OF THE BEAM, COMMON TO THE TOP OUTBOARD BOLT HOLE FOR THE TURBOCHARGER SUPPORT BRACKET. THIS CRACK MEASURES APPROXIMATELY 1 INCH LONG TRAVELING LONGITUDINALLY ACROSS THE FASTENER LOCATION. IT IS CONSISTENT WITH OTHER CRACKS VISUALLY IDENTIFIED IN THIS AREA. THIS BEAM WILL BE REMOVED AND REPLACED.
Part: FUEL LINE — LEAKING (HEATER) · airframe 18,065 hrs · 2,092 cycles
PILOT REPORTED STRONG FUEL ODOR IN CABIN. INSPECTED THE HEATER FUEL SYS & FUEL LINES, FOUND THE RT HEATER FUEL LINE LEAKING. TORQUED HEATER FUEL LINES & LEAK CHECKED WITH NO FURTHER DEFECTS NOTED.
Part: BOLT — SHEARED (ENGINE)
CRANKSHAFT CLUSTER GEAR BOLTS, PN 536379, HAD SHEARED ALLOWING THE DISENGAGEMENT OF THE LARGE GEAR THAT COUPLES WITH THE STARTER ADAPTER SHAFT-GEAR. THE ENG WAS NOT IN COMPLIANCE WITH SERVICE BULLETINS SIL06-3 & SB13-6, WHICH RECOMMEND REPLACEMENT OF THE GEAR BOLTS WITH PN 656990 & LARGE CRANKSHAFT GEAR WITH PN 656991 REV C OR SUBSEQUENT.
Part: BOLT — SEVERED (RT ENGINE) · airframe 17,802 hrs · 1,721 cycles
ON PREFLIGHT, PILOT REPORTED THE RT NACELLE, LG, FLAP & WING WERE OIL SOAKED & PUDDLES OF OIL UNDER THE WING. INSPECTED & FOUND THE SCAVENGE PUMP DRIVE GEAR BOLTS SEVERED. REPLACED THE RT ENG WITH NO FURTHER DEFECT NOTED. ENG WAS SENT OUT FOR TEAR DOWN.
Part: ELBOW — NO THREADS (RT INDUCTION)
PILOT REPORTED DURING FLIGHT, RT MAP STARTED DROPPING. PILOT GOT WORRIED, SHUT DOWN RT ENGINE AND FEATHERED PROPELLER. INVESTIGATION FOUND ELBOW ON INDUCTION TUBE FOR MAP GAUGE BLEW OUT. FIRST 5 THREADS OF ELBOW MISSING, REPLACED ELBOW. GROUND RUNS. ALL OPS CHECK GOOD. (X)