N920AL
Registered owner: ZIPLINE INTERNATIONAL INC, CA (owner ≠ operator)
Operators of this aircraft
Who operated this tail, and how firmly we know it.
| Operator | Role | Period | Basis |
|---|---|---|---|
| Bristow U.S. LLC (ALGA) | Operator | on 2011-01-19 | Operator named in NTSB report |
Accident & incident history
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.
2 reports on file, 2011-01-19 – 2011-03-12.
Part: PANEL — NO TEST (RAFT) · airframe 1,261 hrs
FLOAT / RAFT TEST PANEL FAILED NON-CONFORMING WIRING INSP.
Part: RETAINING NUT — MISSING (TAIL ROTOR) · airframe 1,248 hrs
ON APPROACH, CREW REALIZED TAIL ROTOR EFFECTIVENESS HAD BEEN LOST. CREW ABORTED APPROACH AND PERFORMED SUCCESSFUL RUN-ON LANDING AT NEARBY AIRPORT. UPON SHUTDOWN AND INSPECTION BY MX, IT WAS FOUND THAT THE TAILROTOR PITCH BEAM RETAINING NUT AND LOCK RING WERE MISSING. CAUSE UNDETERMINED AT THIS TIME. IT IS NOT YET KNOWN WHETHER THIS WAS A MECHANICAL FAILURE OR IMPROPER INSTALLATION PROCEDURES. INVESTIGATION ONGOING.