- Date
- January 14, 1975
- Place
- Tonsina, AK · TONSINA, AK
- Injuries
- 1 serious
- Damage
- Substantial damage
- Phase of flight
- Enroute
- Aircraft
- N8263S.N.I.A.S SA318C
- Status
- Completed · report March 3, 1976
- Report
- Brief approved by the director
- FAA report
- 19750114007199A
- Case key
- 148657
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 ---------------------------------------------------------------------------------------------------------------------------- 3-4022 75/1/14 TONSINA,AK S.N.I.A.S SA318C CR- 0 1 0 COMMERCIAL COMMERCIAL, FL.INSTR., TIME - 1100 N8263 PX- 0 0 0 AIR TAXI-PASSG AGE 32, 5030 TOTAL HOURS, DAMAGE-SUBSTANTIAL OT- 0 0 0 1184 IN TYPE, NOT INSTRUMENT RATED. DEPARTURE POINT INTENDED DESTINATION TONSINA,AK LOCAL TYPE OF ACCIDENT PHASE OF OPERATION PROPELLER/ROTOR FAILURE: TAIL ROTOR IN FLIGHT: NORMAL CRUISE COLLIDED WITH: TREES LANDING: POWER-OFF AUTOROTATIVE LANDING PROBABLE CAUSE(S) ROTORCRAFT - TRANSMISSION ROTOR DRIVE SYSTEM: TAIL ROTOR DRIVE SHAFT ASSEMBLY MISCELLANEOUS ACTS,CONDITIONS - LACK OF LUBRICATION-SPECIFIC PART,NOT SYSTEM PERSONNEL - MAINTENANCE,SERVICING,INSPECTION: INADEQUATE MAINTENANCE AND INSPECTION FACTOR(S) TERRAIN - HIGH OBSTRUCTIONS EMERGENCY CIRCUMSTANCES - FORCED LANDING OFF AIRPORT ON LAND REMARKS- T/R DRIVE SHAFT COUPLING FAILED.
Aircraft
- Registration
- N8263
- Reported as
- S.N.I.A.S SA318C
- Category
- Helicopter
- Engine
- turbo shaft
- Damage
- Substantial damage
FAA reports on this event · 1
The FAA’s own accident and incident reports, matched to the aircraft by N-number and date.