- Date
- June 21, 1978
- Place
- Napa, CA · NAPA, CA
- Injuries
- 1 uninjured
- Damage
- Substantial damage
- Phase of flight
- Maneuvering
- Aircraft
- N7923JBell 47G5
- Status
- Completed · report July 27, 1978
- Report
- Brief approved by the director
- FAA report
- 19780621016219A
- Case key
- 141220
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 ---------------------------------------------------------------------------------------------------------------------------- 3-1348 78/6/21 NR.NAPA,CA BELL 47G5 CR- 0 0 1 COMMERCIAL AIRLINE TRANSPORT, AGE TIME - 0945 N7923J PX- 0 0 0 AERIAL APPLICATION 52, 15090 TOTAL HOURS, DAMAGE-SUBSTANTIAL OT- 0 0 0 2119 IN TYPE, INSTRUMENT RATED. DEPARTURE POINT INTENDED DESTINATION NAPA,CA LOCAL TYPE OF ACCIDENT PHASE OF OPERATION COLLISION WITH GROUND/WATER: UNCONTROLLED IN FLIGHT: PULLUP FROM SWATH RUN PROBABLE CAUSE(S) PILOT IN COMMAND - FAILED TO FOLLOW APPROVED PROCEDURES,DIRECTIVES,ETC. MISCELLANEOUS ACTS,CONDITIONS - LATERAL IMBALANCE SPECIAL DATA TOTAL HOURS IN CROP CONTROL - 35 KIND OF OPERATION - DUSTING CROPS KIND OF CROP - GRAPES TYPE OF CHEMICAL USED - DRY CHEMICAL-NONTOXIC PILOT' S SEAT BELT -UNKNOWN/NOT REPORTED GLOVES - NOT USED GOGGLES - NOT USED CRASH HELMET - AVAILABLE USED COCKPIT CRASHPAD - NOT INSTALLED CRASH BAR - NOT INSTALLED TANK/HOPPER-LOCATION - SIDES TERRAIN-TYPE -LEVEL,FLAT ELEVATION-AREA BEING TREATED-FEET - 110 SWATH RUN-HOW FLOWN - CROSSWIND REMARKS- L HOPPER EMPTY,R HOPPER 1/2 TO 3/4 FULL.MIRROR INSTALLED TO MONITOR UNEVEN FLOW.
Aircraft
- Registration
- N7923J
- Reported as
- Bell 47G5
- Category
- Helicopter
- Engine
- reciprocating
- Damage
- Substantial damage
N7923JRegistration cancelled Oct 31, 2017 · Bell 47G-5Airframe modelBell 47G-5Engine modelLycoming VO-435 series
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 N7923J · 4
Matched to the same aircraft by N-number and date.
NTSB LAX95LA216Accident · No injuriesLimited investigationFinal reportCoalinga, CAclutch slippage for undetermined reasons. A factor in the accident was the helicopter's low above ground altitude, which limited the pilot's time and ability to recover main rotor rpm.NTSB OAK74DVD28Accident · No injuriesClosedStockton, CANTSB FTW73DRG47Accident · No injuriesClosedHarlingen, TXNTSB FTW73DRG30Accident · No injuriesClosedHarlingen, TX