- Date
- August 24, 1975
- Place
- Denver, CO · DENVER, CO
- Injuries
- 2 uninjured
- Damage
- Substantial damage
- Phase of flight
- Emergency descent
- Aircraft
- N90769Bell 47G3B1
- Status
- Completed · report November 21, 1975
- Report
- Brief approved by the director
- FAA report
- 19750824027269A
- Case key
- 151082
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 ---------------------------------------------------------------------------------------------------------------------------- 3-3201 75/8/24 DENVER,CO BELL 47G3B1 CR- 0 0 2 INSTRUCTIONAL COMMERCIAL, FL.INSTR., TIME - 1845 N90769 PX- 0 0 0 DUAL AGE 27, 1692 TOTAL HOURS, DAMAGE-SUBSTANTIAL OT- 0 0 0 106 IN TYPE, NOT INSTRUMENT RATED. NAME OF AIRPORT - SKY RANCH DEPARTURE POINT INTENDED DESTINATION DENVER,CO ENGLEWOOD,CO TYPE OF ACCIDENT PHASE OF OPERATION ENGINE FAILURE OR MALFUNCTION IN FLIGHT: AUTOROTATIVE DESCENT HARD LANDING LANDING: POWER-OFF AUTOROTATIVE LANDING PROBABLE CAUSE(S) POWERPLANT - MISCELLANEOUS: POWERPLANT FAILURE FOR UNDETERMINED REASONS PILOT IN COMMAND - IMPROPER OPERATION OF FLIGHT CONTROLS PILOT IN COMMAND - MISJUDGED SPEED AND ALTITUDE COMPLETE POWER LOSS - COMPLETE ENGINE FAILURE/FLAMEOUT-1 ENGINE EMERGENCY CIRCUMSTANCES - FORCED LANDING OFF AIRPORT ON LAND REMARKS- ENGINE STOPPED PURING AUTOROTATION,REASON UNKNOWN.ENG OPERATION NORMAL AFTER ACCIDENT.
Aircraft
- Registration
- N90769
- Reported as
- Bell 47G3B1
- Category
- Helicopter
- Engine
- reciprocating
- Damage
- Substantial damage
- Airport
- Sky Ranch
N90769Registration cancelled Jul 9, 2013 · Bell 47G-3B-1Airframe modelBell 47G-3B-1Engine modelLycoming TVO-435-GIA
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.
FAA reports on this event · 1
The FAA’s own accident and incident reports, matched to the aircraft by N-number and date.
Other investigations on N90769 · 2
Matched to the same aircraft by N-number and date.
NTSB DEN84LA079Accident · No injuriesLimited investigationFinal reportOgden, UTThe plt took off from a mountainous work site to return to salt lake city, UT. The wx was clear at the work site (elevation 6700 ft), but there was fog below. After encountering the fog, the plt hovered with a slow forward speed over snow covered terrain. A…NTSB SEA78DTA18Accident · No injuriesClosedBillings, MT