- Date
- July 23, 1969
- Place
- Stirling Cy, CA · STIRLING CY, CA
- Injuries
- 2 minor, 1 uninjured
- Damage
- Substantial damage
- Phase of flight
- Initial climb
- Aircraft
- N8529FBell 47G3B1
- Status
- Completed · report April 13, 1970
- Report
- Brief approved by the director
- Case key
- 163194
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 ---------------------------------------------------------------------------------------------------------------------------- 3-3595 69/7/23 STIRLING CY,CALIF BELL 47G3B1 CR- 0 0 1 COMMERCIAL COMMERCIAL, AGE 35, 8900 TIME - 1830 N8529F PX- 0 0 2 ASSOC FIRE CTL ACTIVITY TOTAL HOURS, 1400 IN DAMAGE-SUBSTANTIAL OT- 0 0 0 TYPE, NOT INSTRUMENT RATED. DEPARTURE POINT INTENDED DESTINATION STIRLING CY,CALIF STIRLING CY,CALIF TYPE OF ACCIDENT PHASE OF OPERATION ENGINE FAILURE OR MALFUNCTION TAKEOFF: INITIAL CLIMB COLLIDED WITH: TREES LANDING: FINAL APPROACH PROBABLE CAUSE(S) POWERPLANT - EXHAUST SYSTEM: EXTERNAL SUPERCHARGER MISCELLANEOUS ACTS,CONDITIONS - FATIGUE FRACTURE TERRAIN - HIGH OBSTRUCTIONS PARTIAL POWER LOSS - PARTIAL LOSS OF POWER - 1 ENGINE EMERGENCY CIRCUMSTANCES - FORCED LANDING OFF AIRPORT ON LAND REMARKS- OXIDATION,COKE BUILD UP IN TURBINE WHEEL CAUSED METAL FATIGUE FAILURE.
Aircraft
- Registration
- N8529F
- Reported as
- Bell 47G3B1
- Category
- Helicopter
- Engine
- reciprocating
- Damage
- Substantial damage
N8529FRegistration cancelled Mar 1, 2018 · Bell 47G-3B-1Airframe modelBell 47G-3B-1Engine modelLycoming 0-435
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 N8529F · 1
Matched to the same aircraft by N-number and date.