N312LS
Operators of this aircraft
Who operated this tail, and how firmly we know it.
| Operator | Role | Period | Basis |
|---|---|---|---|
| OMNIFLIGHT HELICOPTERS INC | Operator | on 2000-07-16 | Operator named in NTSB report |
Accident & incident history
Operated by OMNIFLIGHT 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.
3 reports on file, 1999-01-14 – 1999-12-08.
Part: CYCLIC JACKSHAFT — CORRODED (MAIN ROTOR)
TECHNICIAN PULLED LARGE AMOUNT OF RUST OUT OF INSIDE OF CYCLIC JACKSHAFT WHILE USING MAGNET TO RETRIEVE LOST SCREW. REMOVED JACKSHAFT AND INSPECTED. LARGE AMOUNT OF RUST RESIDUE AND PITTING OF JACKSHAFT ESPECIALLY ON PILOT SIDE. MFG ALLOWS .4 MM CORROSION DAMAGE. ALMOST IMPOSSIBLE TO MEASURE DEPTH WITH CONVENTIONAL MEANS. WILL SEND TO BE ULTRASONICALLY TESTED. SUBMITTER SUSPECTED THIS ONE BEYOND LIMITS. REMOVED SAME P/N SHAFT OUT OF ANOTHER ACFT. IT HAD SMALL AMOUNT OF SURFACE RUST. APPEARS THERE IS INSUFFICIENT PAINT TO PROTECT INTERIOR. DESIGN OF SHAFT HAS CASTING ON EACH END THAT ANGLES UP 45 DEGREES WHICH WOULD MAKE CAPTURING FLUIDS EASY. SUBMITTER STATED THERE ARE NO PROVISIONS FOR DRAINAGE.
Part: JACKSHAFT — CORRODED (MAIN ROTOR)
TECHNICIAN PULLED LARGE AMOUNT OF RUST OUT OF INSIDE OF CYCLIC JACKSHAFT WHILE USING MAGNET TO RETRIEVE LOST SCREW. REMOVED JACKSHAFT AND INSPECTED. LARGE AMOUNT OF RUST RESIDUE AND PITTING OF JACKSHAFT, ESPECIALLY ON PILOT SIDE. MFG ALLOWS .4 MM CORROSION DAMAGE. ALMOST IMPOSSIBLE TO MEASURE DEPTH WITH CONVENTIONAL MEANS. WILL SEND TO BE ULTRASONICALLY TESTED. SUBMITTER SUSPECTED THIS ONE BEYOND LIMITS. REMOVED SAME P/N SHAFT OUT OF ANOTHER ACFT AND IT HAD SMALL AMOUNT OF SURFACE RUST. IT APPEARS THERE IS NO (OR INSUFFICIENT) PAINT TO PROTECT THE INTERIOR. DESIGN OF SHAFT HAS A CASTING ON EACH END THAT ANGLES UP 45 DEGREES WHICH WOULD MAKE CAPTURING FLUIDS EASY. THERE IS NO PROVISIONS FOR DRAINAGE.
Part: GYRO — FAILED (COCKPIT)
ATTITUDE GYRO WILL NOT CAGE. VERY ERRATIC. REMOVED AND REPLACED. (X)