- Date
- December 2, 1970
- Place
- Philadelphia, PA · PHILADELPHIA, PA
- Injuries
- 2 uninjured
- Damage
- Substantial damage
- Phase of flight
- Enroute
- Aircraft
- N73943Bell 47G-4
- Status
- Completed · report October 6, 1971
- Report
- Brief approved by the director
- Case key
- 159537
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 ---------------------------------------------------------------------------------------------------------------------------- 3-4550 70/12/2 PHILADELPHIA,PA BELL 47G-4 CR- 0 0 1 COMMERCIAL COMMERCIAL, AGE 52, 6625 TIME - 1105 N73943 PX- 0 0 1 MAPPING/PHOTO TOTAL HOURS, 955 IN TYPE, DAMAGE-SUBSTANTIAL OT- 0 0 0 INSTRUMENT RATED. NAME OF AIRPORT - PHILADELPHIA INTL DEPARTURE POINT INTENDED DESTINATION PHILADELPHIA,PA LOCAL TYPE OF ACCIDENT PHASE OF OPERATION ENGINE FAILURE OR MALFUNCTION IN FLIGHT: NORMAL CRUISE HARD LANDING LANDING: POWER-OFF AUTOROTATIVE LANDING PROBABLE CAUSE(S) POWERPLANT - MISCELLANEOUS: POWERPLANT FAILURE FOR UNDETERMINED REASONS MISCELLANEOUS - EVASIVE MANEUVER TO AVOID COLLISION FACTOR(S) TERRAIN - HIGH OBSTRUCTIONS COMPLETE POWER LOSS - COMPLETE ENGINE FAILURE/FLAMEOUT-1 ENGINE EMERGENCY CIRCUMSTANCES - FORCED LANDING OFF AIRPORT ON LAND REMARKS- PHOTOGRAPHY MISSION. PLT HAD TO INCREASE ROTOR PITCH TO CLEAR PWR LINES. NO ENG MALFUNCTION FOUND.
Aircraft
- Registration
- N73943
- Reported as
- Bell 47G-4
- Category
- Helicopter
- Engine
- reciprocating
- Damage
- Substantial damage
- Airport
- Philadelphia Intl
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 N73943 · 2
Matched to the same aircraft by N-number and date.