- Date
- December 7, 1968
- Place
- Stevens Vill, AK · STEVENS VILL, AK
- Injuries
- 2 uninjured
- Damage
- Substantial damage
- Phase of flight
- Enroute
- Aircraft
- N9743CHiller UH-12E
- Status
- Completed · report August 30, 1972
- Report
- Brief approved by the director
- Case key
- 201689
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 ---------------------------------------------------------------------------------------------------------------------------- 3-4960 68/12/7 STEVENS VILL,ALAS HILLER UH-12E CR- 0 0 1 COMMERCIAL COMMERCIAL, FL.INSTR., TIME - 1430 N9743C PX- 0 0 1 AIR TAXI-PASSG AGE 32, 2999 TOTAL HOURS, DAMAGE-SUBSTANTIAL OT- 0 0 0 182 IN TYPE, INSTRUMENT RATED. DEPARTURE POINT INTENDED DESTINATION BETTLES,ALAS LOCAL TYPE OF ACCIDENT PHASE OF OPERATION ENGINE FAILURE OR MALFUNCTION IN FLIGHT: NORMAL CRUISE COLLIDED WITH: TREES LANDING: POWER-OFF AUTOROTATIVE LANDING PROBABLE CAUSE(S) ROTORCRAFT - TRANSMISSION ROTOR DRIVE SYSTEM: MAIN ROTOR GEAR BOX MISCELLANEOUS ACTS,CONDITIONS - MATERIAL FAILURE MISCELLANEOUS ACTS,CONDITIONS - LACK OF LUBRICATION-SPECIFIC PART,NOT SYSTEM TERRAIN - HIGH OBSTRUCTIONS COMPLETE POWER LOSS - COMPLETE ENGINE FAILURE/FLAMEOUT-1 ENGINE EMERGENCY CIRCUMSTANCES - FORCED LANDING OFF AIRPORT ON LAND REMARKS- OIL CONGEALED IN M/R TRANS,1ST STAGE PLANETARY GRS FAILED,M/R BLDS HIT TREES IN LDG AREA.
Aircraft
- Registration
- N9743C
- Reported as
- Hiller UH-12E
- Category
- Helicopter
- Engine
- reciprocating
- Damage
- Substantial damage
N9743CRegistration cancelled Jul 29, 2013 · Hiller UH-12EAirframe modelHiller UH-12EEngine modelLycoming VO-540 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.
Other investigations on N9743C · 2
Matched to the same aircraft by N-number and date.