- Date
- August 2, 1973
- Place
- Chester, CA · CHESTER, CA
- Injuries
- 1 fatal, 1 uninjured
- Phase of flight
- Enroute
- Status
- Completed · report October 16, 1973
- Report
- Brief approved by the director
- FAA reports
- 19730802031401A19730802031402A
- Case key
- 189190
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 ---------------------------------------------------------------------------------------------------------------------------- 3-2421 73/8/2 NR.CHESTER,CALIF GRUMMAN TBM-3 CR- 1 0 0 COMMERCIAL COMMERCIAL, FL.INSTR., TIME - 1515 N9083Z PX- 0 0 0 FIRE CONTROL AGE 47, 3975 TOTAL HOURS, DAMAGE-DESTROYED OT- 0 0 1 450 IN TYPE, INSTRUMENT RATED. DEPARTURE POINT INTENDED DESTINATION CHESTER,CALIF LOCAL TYPE OF ACCIDENT PHASE OF OPERATION COLLISION WITH AIRCRAFT: BOTH IN FLIGHT IN FLIGHT: SWATH RUN PROBABLE CAUSE(S) PERSONNEL - MISCELLANEOUS-PERSONNEL: PILOT OF OTHER AIRCRAFT FACTOR(S) WEATHER - OBSTRUCTIONS TO VISION WEATHER BRIEFING - NO RECORD OF BRIEFING RECEIVED WEATHER FORECAST - FORECAST SUBSTANTIALLY CORRECT SKY CONDITION CEILING AT ACCIDENT SITE SCATTERED UNLIMITED VISIBILITY AT ACCIDENT SITE PRECIPITATION AT ACCIDENT SITE 1 MILE OR LESS NONE OBSTRUCTIONS TO VISION AT ACCIDENT SITE TEMPERATURE-F SMOKE 93 WIND DIRECTION-DEGREES WIND VELOCITY-KNOTS 180 5 TYPE OF WEATHER CONDITIONS TYPE OF FLIGHT PLAN VFR NONE SPECIAL DATA SEGMENTS OF AVIATION INVOLVED - SMALL US GEN.AV.-LARGE US GEN.AV. CONTROLLING AGENCY - NO CONTROL RADAR CTL/SURVEILLANCE - RADAR SERVICE NOT AVAILABLE TRAFFIC ADVISORY ISSUED - NONE CONTROL ZONE/AREA - NO EVASIVE ACTION TAKEN - NO REMARKS- 2ND TANKER IN 3 SHIP TRAIL FORMATION LED BY SPOTTER.DROP RUN BRIEF TRNSMT TO TANKERS PRIOR TO RUN.
---------------------------------------------------------------------------------------------------------------------------- FILE DATE LOCATION AIRCRAFT DATA INJURIES FLIGHT PILOT DATA F S M/N PURPOSE ---------------------------------------------------------------------------------------------------------------------------- 3-2421 73/8/2 NR.CHESTER,CALIF CESSNA 310A CR- 0 0 1 COMMERCIAL COMMERCIAL, AGE 53, 13028 TIME - 1515 N135Z PX- 0 0 0 FIRE CONTROL TOTAL HOURS, 350 IN TYPE, DAMAGE-SUBSTANTIAL OT- 1 0 0 INSTRUMENT RATED. DEPARTURE POINT INTENDED DESTINATION REDDING,CALIF LOCAL TYPE OF ACCIDENT PHASE OF OPERATION COLLISION WITH AIRCRAFT: BOTH IN FLIGHT IN FLIGHT: OTHER PROBABLE CAUSE(S) PILOT IN COMMAND - FAILED TO SEE AND AVOID OTHER AIRCRAFT FACTOR(S) PILOT IN COMMAND - FAILED TO FOLLOW APPROVED PROCEDURES,DIRECTIVES,ETC. PILOT IN COMMAND - DIVERTED ATTENTION FROM OPERATION OF AIRCRAFT WEATHER - OBSTRUCTIONS TO VISION WEATHER BRIEFING - NO RECORD OF BRIEFING RECEIVED WEATHER FORECAST - FORECAST SUBSTANTIALLY CORRECT SKY CONDITION CEILING AT ACCIDENT SITE SCATTERED UNLIMITED VISIBILITY AT ACCIDENT SITE PRECIPITATION AT ACCIDENT SITE 1 MILE OR LESS NONE OBSTRUCTIONS TO VISION AT ACCIDENT SITE TEMPERATURE-F SMOKE 93 WIND DIRECTION-DEGREES WIND VELOCITY-KNOTS 180 5 TYPE OF WEATHER CONDITIONS TYPE OF FLIGHT PLAN VFR NONE SPECIAL DATA SEGMENTS OF AVIATION INVOLVED - SMALL US GEN.AV.-LARGE US GEN.AV. CONTROLLING AGENCY - NO CONTROL RADAR CTL/SURVEILLANCE - RADAR SERVICE NOT AVAILABLE TRAFFIC ADVISORY ISSUED - NONE CONTROL ZONE/AREA - NO EVASIVE ACTION TAKEN - UNKNOWN/NOT REPORTED REMARKS- SPOTTED FIRE ZONE FOR TANKERS.ENTERED STEEP CLIMBING TURN,DSCND IN TURN & STRUCK TBM ON DROP RUN.
Aircraft · 2
- Registration
- N135Z
- Reported as
- Cessna 310A
- Category
- Airplane
- 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.
- Registration
- N9083Z
- Reported as
- Grumman TBM-3
- Category
- Airplane
- 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.
FAA reports on this event · 2
The FAA’s own accident and incident reports, matched to the aircraft by N-number and date.
Accident 19730802031401ACessna T310R · Chester, CASpotted fire zone for tankers. Entered steep climbing turn,dscnd in turn & struck tbm on drop run.Accident 19730802031402AGruman TBM3AIRTRD · Chester, CA2Nd tanker in 3 ship trail formation led by spotter. Drop run brief trnsmt to tankers prior to run.