# NTSB LAX71FUM11: Grumman TBM-3E, N9860C, Ramona, CA, September 4, 1970

- Type: NTSB accident investigation
- Classification: Accident · Fatal · Closed
- Date: September 4, 1970
- Place: Ramona, CA · RAMONA, CA
- Location: 33.0417° N, 116.8681° W: Placed by OpenAirDocs: center of Ramona, CA, within about 6 miles (OpenAirDocs)
- Nearby events: https://openairdocs.org/map.md?lat=33.0417&lon=-116.8681&mi=10
- Phase of flight: [Enroute](https://openairdocs.org/ntsb-phases/400) (OpenAirDocs' grouping)
- Highest injury: Fatal
- Injuries: 1 fatal
- Status: Completed, report January 19, 1971
- Report: Brief approved by the director
- NTSB case key (mKey): 163465
- NTSB case page: https://web.ntsb.gov/investigations/?ntsbnumber=LAX71FUM11
- Page: https://openairdocs.org/ntsb/LAX71FUM11

## NTSB brief

```
----------------------------------------------------------------------------------------------------------------------------
 FILE    DATE          LOCATION          AIRCRAFT DATA       INJURIES       FLIGHT                        PILOT DATA
                                                               F  S M/N     PURPOSE
----------------------------------------------------------------------------------------------------------------------------
3-1618   70/9/4    RAMONA,CALIF        GRUMMAN TBM-3E      CR-  1  0  0  COMMERCIAL                COMMERCIAL, AGE 41, 8000
        TIME - 0955                    N9860C              PX-  0  0  0  FIRE CONTROL              TOTAL HOURS, 575 IN TYPE,
                                       DAMAGE-DESTROYED    OT-  0  0  0                            INSTRUMENT RATED.
        DEPARTURE POINT             INTENDED DESTINATION
          RAMONA,CALIF                LOCAL
        TYPE OF ACCIDENT                                         PHASE OF OPERATION
           STALL                                                    IN FLIGHT: OTHER
        PROBABLE CAUSE(S)
           PILOT IN COMMAND - FAILED TO OBTAIN/MAINTAIN FLYING SPEED
           WEATHER - HIGH TEMPERATURE
           WEATHER - HIGH DENSITY ALTITUDE
        WEATHER BRIEFING - NO RECORD OF BRIEFING RECEIVED
        WEATHER FORECAST - UNKNOWN/NOT REPORTED
        SKY CONDITION                                            CEILING AT ACCIDENT SITE
          CLEAR                                                    UNLIMITED
        VISIBILITY AT ACCIDENT SITE                              PRECIPITATION AT ACCIDENT SITE
          UNKNOWN/NOT REPORTED                                     NONE
        OBSTRUCTIONS TO VISION AT ACCIDENT SITE                  TEMPERATURE-F
          UNKNOWN/NOT REPORTED                                      101
        WIND VELOCITY-KNOTS                                      TYPE OF WEATHER CONDITIONS
          CALM                                                     VFR
        TYPE OF FLIGHT PLAN
          NONE
         FIRE AFTER IMPACT
        REMARKS- ACFT OBSVD IN WIDE L TURN,THEN STEEP TURN,NOSE DROPPED SUDDENLY.OAT 101 DEG DNSTY ALT APRX 6000FT.
```

## Aircraft

- Registration: [N9860C](https://openairdocs.org/deregistered/N9860C-1972-04-03), registration cancelled 1972-04-03, S/N 86118, built 1945 (OpenAirDocs)
- Reported make and model: GRUMMAN TBM-3E
- Registry model: [Grumman TBM-3E](https://openairdocs.org/model/grumman-tbm-3e) (registry code 3950310) (OpenAirDocs)
- Category: Airplane
- Engines: reciprocating
- Damage: Destroyed

From the NTSB's public API. Aircraft are matched to registry aircraft by N-number and event date, checked against the reported serial number, make and model; the registry's history has gaps, so older matches can be wrong. Compare the reported make and model.

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