- Date
- September 2, 1969
- Place
- Prudhoe Bay, AK · PRUDHOE BAY, AK
- Injuries
- 3 fatal
- Damage
- Destroyed
- Phase of flight
- Enroute
- Aircraft
- N6964RSikorsky S-64E
- Status
- Completed · report April 21, 1970
- Report
- Brief approved by the director
- Case key
- 154396
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 ---------------------------------------------------------------------------------------------------------------------------- 3-3686 69/9/2 NR.PRUDHOE BAY,ALAS SIKORSKY S-64E CR- 2 0 0 COMMERCIAL COMMERCIAL, AGE 37, 4787 TIME - 1735 N6964R PX- 1 0 0 CTR CARGO-D TOTAL HOURS, 830 IN TYPE, DAMAGE-DESTROYED OT- 0 0 0 INSTRUMENT RATED. DEPARTURE POINT INTENDED DESTINATION PRUDHOE BAY,ALAS 32 MI.NW PRUDHOE BAY TYPE OF ACCIDENT PHASE OF OPERATION PROPELLER/ROTOR FAILURE: TAIL ROTOR IN FLIGHT: NORMAL CRUISE COLLISION WITH GROUND/WATER: UNCONTROLLED IN FLIGHT: UNCONTROLLED DESCENT PROBABLE CAUSE(S) ROTORCRAFT - FLIGHT CONTROL SYSTEMS: TAIL ROTOR PITCH CONTROL SYSTEM MISCELLANEOUS ACTS,CONDITIONS - FATIGUE FRACTURE PERSONNEL - PRODUCTION-DESIGN-PERSONNEL: INCORRECT FACTORY INSTALLATION FACTOR(S) MISCELLANEOUS ACTS,CONDITIONS - SEPARATION IN FLIGHT FIRE AFTER IMPACT REMARKS- GUARD,PN 65113-07108-108,MISSING.T/R PITCH CTL LINK ASSY FAILED.GENL IN FLIGHT BREAKUP OF ACFT.
Aircraft
- Registration
- N6964R
- Reported as
- Sikorsky S-64E
- Category
- Helicopter
- Engine
- turbo shaft
- Damage
- Destroyed
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.