- Date
- September 9, 1965
- Place
- Commerce Cty, CO · COMMERCE CTY, CO
- Injuries
- 2 uninjured
- Damage
- Substantial damage
- Phase of flight
- Approach
- Aircraft
- N1135WBell 47G3B1
- Status
- Completed · report November 8, 1965
- Report
- Brief approved by the director
- Case key
- 176335
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 ---------------------------------------------------------------------------------------------------------------------------- 2-0575 65/9/9 NR.COMMERCE CTY COLO BELL 47G3B1 CR- 0 0 2 INSTRUCTIONAL COMMERCIAL, FL.INSTR., TIME - 1600 N1135W PX- 0 0 0 CHECK AGE 33, 6311 TOTAL HOURS, DAMAGE-SUBSTANTIAL OT- 0 0 0 4 IN TYPE, NOT INSTRUMENT RATED. TYPE OF ACCIDENT PHASE OF OPERATION ENGINE FAILURE OR MALFUNCTION LANDING: FINAL APPROACH HARD LANDING LANDING: POWER-OFF AUTOROTATIVE LANDING PROBABLE CAUSE(S) PILOT IN COMMAND - IMPROPER OPERATION OF POWERPLANT & POWERPLANT CONTROLS PILOT IN COMMAND - IMPROPER OPERATION OF FLIGHT CONTROLS PILOT IN COMMAND - FAILED TO MAINTAIN ADEQUATE ROTOR R.P.M. FACTOR(S) MISCELLANEOUS ACTS,CONDITIONS - SIMULATED CONDITIONS MISCELLANEOUS ACTS,CONDITIONS - DOWNWIND COMPLETE POWER LOSS - COMPLETE ENGINE FAILURE/FLAMEOUT-1 ENGINE EMERGENCY CIRCUMSTANCES - FORCED LANDING OFF AIRPORT ON LAND REMARKS- SIMULATED AUTOROTATIVE LANDING BECAME EMERGENCY DUE TO POWER FAILURE IN RECOVERY PHASE.
Aircraft
- Registration
- N1135W
- Reported as
- Bell 47G3B1
- Category
- Helicopter
- Engine
- reciprocating
- Damage
- Substantial damage
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 N1135W · 3
Matched to the same aircraft by N-number and date.