- Date
- July 11, 1966
- Place
- Grand Canyon, AZ · GRAND CANYON, AZ
- Injuries
- 1 serious
- Damage
- Destroyed
- Phase of flight
- Enroute
- Aircraft
- N73947Bell 47G-3B
- Status
- Completed · report March 3, 1967
- Report
- Brief approved by the director
- Case key
- 171141
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 ---------------------------------------------------------------------------------------------------------------------------- 2-0654 66/7/11 UNKNOWN/NOT REPORTEDBELL 47G-3B CR- 0 1 0 COMMERCIAL COMMERCIAL, AGE 41, 5160 TIME - 1010 N73947 PX- 0 0 0 CTR CARGO-D TOTAL HOURS, 2000 IN DAMAGE-DESTROYED OT- 0 0 0 TYPE, NOT INSTRUMENT RATED. TYPE OF ACCIDENT PHASE OF OPERATION COLLIDED WITH: WIRES/POLES IN FLIGHT: POWER-ON DESCENT PROBABLE CAUSE(S) PILOT IN COMMAND - MISJUDGED CLEARANCE FIRE AFTER IMPACT REMARKS- 600-LB EXTERNAL SLING LOAD 50 FT BENEATH HELICOPTER WAS OSCILLATING. PILOT WAS AWARE OF TELE-LINE.
Aircraft
- Registration
- N73947
- Reported as
- Bell 47G-3B
- Category
- Helicopter
- Engine
- reciprocating
- 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.
Other investigations on N73947 · 2
Matched to the same aircraft by N-number and date.
NTSB MIA88FA192Accident · Serious injuriesField investigationFinal reportBenoit, MSThe plt said the engine misfired three times during takeoff and lost partial power. The helicopter settled into a rice field and the damaged spray booms became entangled. The helicopter nosed over in the high vegetation. The plt stated the engine accelerated…NTSB DEN66A0051Accident · No injuriesClosedMesa, AZ