- Date
- June 10, 1981
- Place
- Castle Rock, WA · CASTLE ROCK, WA
- Injuries
- 1 minor
- Damage
- Destroyed
- Phase of flight
- Enroute
- Aircraft
- N62377Hiller UN-12D
- Status
- Completed · report September 10, 1981
- Report
- Brief approved by the director
- FAA report
- 19810610032829A
- Case key
- 125337
From the NTSB’s public API. By law, NTSB reports can’t be used as evidence in lawsuits over the accident.
On this page
NTSB brief
NTSB’s brief of the accident, as it was printed: the coded facts, with the probable cause and factors.
---------------------------------------------------------------------------------------------------------------------------- FILE DATE LOCATION AIRCRAFT DATA INJURIES FLIGHT PILOT DATA F S M/N PURPOSE ---------------------------------------------------------------------------------------------------------------------------- 3-2724 81/6/10 NR.CASTLE ROCK,WA HILLER UN-12D CR- 0 0 1 COMMERCIAL COMMERCIAL, AGE 46, 12353 TIME - 0930 N62377 PX- 0 0 0 OTHER TOTAL HOURS, 2226 IN DAMAGE-DESTROYED OT- 0 0 0 TYPE, NOT INSTRUMENT RATED. DEPARTURE POINT INTENDED DESTINATION CASTLE ROCK,WA LOCAL TYPE OF ACCIDENT PHASE OF OPERATION PROPELLER/ROTOR FAILURE: TAIL ROTOR IN FLIGHT: CLIMB TO CRUISE PROBABLE CAUSE(S) ROTORCRAFT - TRANSMISSION ROTOR DRIVE SYSTEM: TAIL ROTOR GEAR BOX MISCELLANEOUS ACTS,CONDITIONS - MATERIAL FAILURE FACTOR(S) MISCELLANEOUS ACTS,CONDITIONS - JETTISONED LOAD EMERGENCY CIRCUMSTANCES - FORCED LANDING OFF AIRPORT ON LAND DIRECTIONAL CONTROL PROBLEM REMARKS- T/R INPUT BEVEL GEARSHAFT,P/N 25211-5,FAILED.LONG LINE SLING OPN.
Aircraft
- Registration
- N62377
- Reported as
- Hiller UN-12D
- Category
- Helicopter
- Engine
- turbo shaft
- Damage
- Destroyed
N62377Registration cancelled Apr 29, 2013 · Hiller H-23DAirframe modelHiller H-23DEngine modelLycoming VO-435 series
Matched to the registry by N-number and the event date; the registry’s history has gaps, so older matches can be wrong. Compare the reported make and model.
FAA reports on this event · 1
The FAA’s own accident and incident reports, matched to the aircraft by N-number and date.
Other investigations on N62377 · 3
Matched to the same aircraft by N-number and date.
NTSB SEA84LA066Accident · No injuriesLimited investigationFinal reportForest Grove, ORThe plt reported that while hovering, during an external load operation, the eng lost power & blue smoke & flames exited the back of the helicopter. The helicopter then struck trees before coming to rest. During an investigation, the eng started normally &…NTSB SEA82DA057Accident · Serious injuriesFinal reportChristmas Valle, ORThe helicopter was being used to string a transmission line. A rope (attach line) was used to connect the helicopter to the transmission line. The rope became detached and the pilot landed to have it reattached. A man, involved in the ground operations,…NTSB SEA80DYE03Accident · No injuriesClosedAmanda Park, WA