N402SH
Operators of this aircraft
Who operated this tail, and how firmly we know it.
| Operator | Role | Period | Basis |
|---|---|---|---|
| K & S Helicopters, Inc. (K2DA) | Certificate holder | — | Matched by certificate designator |
| K & S Helicopters, Inc. (K2DA) | Operator | on 2022-06-08 | Operator named in NTSB report |
Accident & incident history
Operated by K&S HELICOPTERS INC (per NTSB report)
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, 2010-07-04 – 2021-11-11.
Part: NONE — NONE · airframe 22,236 hrs · 39,698 cycles
ON 11 NOV 2021 AT 1354 HST, AIRCRAFT N402SH PERFORMED A PRECAUTIONARY LANDING DUE TO A ENGINE OIL PRESSURE GAUGE INDICATION OF ZERO WHILE CONDUCTING AN AIR TOUR ON THE ISLAND OF HAWAIâI. THERE WERE NO SECONDARY INDICATIONS AND THE AIRCRAFT LANDED SAFELY AT 18º59â04.1âN 155º40â43.1âW. MAINTENANCE PERSONNEL WERE DISPATCHED TO THE AIRCRAFT AND THE ENGINE OIL TRANSDUCER WAS REPLACED. AFTER A PENALTY RUN AND SIGN OFFS, THE AIRCRAFT RETURNED TO KONA AIRPORT WITHOUT FURTHER INCIDENT. THE ENGINE OIL PRESSURE TRANSDUCER, P/N 222-375-077-113 IS AN "ON CONDITION" PART.
Part: GEARBOX — MAKING METAL (MAIN)
THE PILOT EXPERIENCED A WHINE IN THE ENGINE AND DECIDED TO LAND THE ACFT. UPON LANDING, THE ENG CHIP LIGHT ILLUMINATED. WHEN MX ARRIVED ENG OIL WAS PRESENT ON THE EXTERIOR OF THE ACFT. THE PT SUPPORT OIL PRESSURE FITTING LINE WAS FOUND COMPLETELY SHEARED FROM THE BASE OF THE FITTING, CAUSING ALL OF THE ENG OIL TO EXIT THE ENG. THE FWD GEARBOX CHIP PLUG HAD A SUBSTANTIAL AMOUNT OF METAL ON IT AS WELL DUE TO OIL STARVATION. PROBABLE CAUSE OF THE FAILED FITTING COULD BE THE RESULT OF A MANUFACTURING DEFECT. THERE WERE NO EARLY SIGNS OF FATIGUE OR FAILURE WITH THE PART AND THE FAILURE DID SEEM TO HAPPEN ALL AT ONE TIME.
Part: FITTING — SHEARED (ENGINE OIL) · airframe 18,834 hrs · 35,449 cycles
THE PIC EXPERIENCED A WHINE IN THE ENGINE AND DECIDED TO LAND THE AIRCRAFT. UPON LANDING, THE ENG CHIP LIGHT ILLUMINATED. WHEN MAINTENANCE ARRIVED ENGINE OIL WAS PRESENT ON THE EXTERIOR OF THE AIRCRAFT. THE PT SUPPORT OIL PRESSURE FITTING LINE WAS FOUND COMPLETELY SHEARED FROM THE BASE OF THE FITTING, CAUSING ALL OF THE ENGINE OIL TO EXIT THE ENGINE. THE FORWARD GEARBOX CHIP PLUG HAD A SUBSTANTIAL AMOUNT OF METAL ON IT AS WELL DUE TO OIL STARVATION.
Part: FITTING — SHEARED (ENGINE OIL) · airframe 18,834 hrs · 35,449 cycles
THE PILOT IN CHARGE EXPERIENCED A WHINE IN THE ENGINE AND DECIDED TO LAND THE AIRCRAFT. ON LANDING, THE ENG CHIP LIGHT ILLUMINATED. THE PILOT REPORTED THAT ALL OF HIS GAUGES WERE READING NORMAL BUT HE DECIDED TO SHUT THE ENGINE DOWN IMMEDIATELY BECAUSE OF THE SOUND. MX OBSERVED ENGINE OIL WAS PRESENT ON THE EXTERIOR OF THE AIRCRAFT. THE PT SUPPORT OIL PRESSURE FITTING LINE WAS FOUND COMPLETELY SHEARED FROM THE BASE OF THE FITTING, CAUSING ALL OF THE ENGINE OIL TO EXIT THE ENGINE. THE FORWARD GEARBOX CHIP PLUG HAD A SUBSTANTIAL AMOUNT OF METAL ON IT AS WELL DUE TO OIL STARVATION. THERE WERE NO EARLY INDICATIONS OF FATIGUE OR FAILURE WITH THE OIL PRESSURE FITTING. SUSPECT A MANUFACTURING DEFECT OR A POOR WELD.
Part: BLADE — DEBONDED (MAIN ROTOR) · airframe 9,885 hrs · 10,089 cycles
LOWER MAIN ROTOR BLADES SKIN DELAMINATION FROM BLADE STATION 196 TO BLADE STATION 210.