- Date
- May 4, 1978
- Place
- Sylmar, CA · SYLMAR, CA
- Injuries
- 2 uninjured
- Damage
- Substantial damage
- Phase of flight
- Enroute
- Aircraft
- N4702SBell 47G
- Status
- Completed · report June 23, 1978
- Report
- Brief approved by the director
- FAA report
- 19780504011049A
- Case key
- 142263
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 ---------------------------------------------------------------------------------------------------------------------------- 3-0878 78/5/4 NR.SYLMAR,CA BELL 47G CR- 0 0 2 INSTRUCTIONAL COMMERCIAL, FL.INSTR., TIME - 1230 N4702S PX- 0 0 0 DUAL AGE 35, 788 TOTAL HOURS, DAMAGE-SUBSTANTIAL OT- 0 0 0 518 IN TYPE, NOT INSTRUMENT RATED. DEPARTURE POINT INTENDED DESTINATION AGUA DULCE,CA BURBANK,CA 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 PILOT IN COMMAND - IMPROPER OPERATION OF FLIGHT CONTROLS FACTOR(S) TERRAIN - ROUGH/UNEVEN TERRAIN - HIGH VEGETATION PARTIAL POWER LOSS - PARTIAL LOSS OF POWER - 1 ENGINE EMERGENCY CIRCUMSTANCES - FORCED LANDING OFF AIRPORT ON LAND
Aircraft
- Registration
- N4702S
- Reported as
- Bell 47G
- 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.
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 N4702S · 4
Matched to the same aircraft by N-number and date.
NTSB MIA02LA154Accident · Minor injuriesLimited investigationFinal reportUnion, SCthe pilot's failure to maintain obstacle clearance.NTSB MIA98LA230Accident · No injuriesLimited investigationFinal reportDawson, GAThe pilot's selection of unsuitable terrain for landing resulting in debris being blown up during landing resulting in damage to the tail rotor and loss of control.NTSB MIA96LA028Accident · No injuriesLimited investigationFinal reportJasper, FLImproper maintenance and inspection of the carburetor system by maintenance personnel during the last annual inspection which resulted in a partial loss of engine power due to carburetor ice. Contributing to the accident were: the pilot's failure to perform…NTSB LAX71FUQ33Accident · No injuriesClosedVan Nuys, CA