# NTSB LAX74DUM02: Maule M4, N9851M, Pine Valley, CA, August 12, 1973

- Type: NTSB incident investigation
- Classification: Incident · No injuries · Closed
- Date: August 12, 1973
- Place: Pine Valley, CA · PINE VALLEY, CA
- Location: 32.8415° N, 116.5107° W: Placed by OpenAirDocs: center of Pine Valley, CA, within about 6 miles (OpenAirDocs)
- Nearby events: https://openairdocs.org/map.md?lat=32.8415&lon=-116.5107&mi=10
- Phase of flight: [Landing](https://openairdocs.org/ntsb-phases/550) (OpenAirDocs' grouping)
- Highest injury: No injuries
- Injuries: 1 uninjured
- Status: Completed, report October 12, 1973
- Report: Brief approved by the director
- NTSB case key (mKey): 188782
- NTSB case page: https://web.ntsb.gov/investigations/?ntsbnumber=LAX74DUM02
- Page: https://openairdocs.org/ntsb/LAX74DUM02

## NTSB brief

```
----------------------------------------------------------------------------------------------------------------------------
 FILE    DATE          LOCATION          AIRCRAFT DATA       INJURIES       FLIGHT                        PILOT DATA
                                                               F  S M/N     PURPOSE
----------------------------------------------------------------------------------------------------------------------------
5-0020  73/8/12  NR.PINE VALLEY,CALIF  MAULE M4            CR-  0  0  1  NONCOMMERCIAL             COMMERCIAL, AGE 28, 348
        TIME - 1210                    N9851M              PX-  0  0  0  PLEASURE/PERSONAL TRANSP  TOTAL HOURS, 31 IN TYPE,
                                       DAMAGE-MINOR        OT-  0  0  0                            NOT INSTRUMENT RATED.
        CLASSIFIED AS INCIDENT
        DEPARTURE POINT             INTENDED DESTINATION
          MEXICALI,BAJA CALIF         SAN DIEGO,CALIF
        TYPE OF ACCIDENT                                         PHASE OF OPERATION
           COLLIDED WITH: DIRT BANK                                 LANDING: LEVEL OFF/TOUCHDOWN
           GEAR COLLAPSED                                           LANDING: LEVEL OFF/TOUCHDOWN
        PROBABLE CAUSE(S)
           PILOT IN COMMAND - FAILED TO FOLLOW APPROVED PROCEDURES,DIRECTIVES,ETC.
           PILOT IN COMMAND - IMPROPER IN-FLIGHT DECISIONS OR PLANNING
           PILOT IN COMMAND - IMPROPER LEVEL OFF
           PILOT IN COMMAND - FAILED TO MAINTAIN DIRECTIONAL CONTROL
        FACTOR(S)
           TERRAIN - HIGH OBSTRUCTIONS
           MISCELLANEOUS ACTS,CONDITIONS - OVERLOAD FAILURE
        EMERGENCY CIRCUMSTANCES - PRECAUTIONARY LANDING OFF AIRPORT
                                  SUSPECTED MECHANICAL DISCREPANCY
        REMARKS- PLT ASSUMED OIL PROBLEM FROM TEMP GAGE.LATER INVES FOUND SYS OK.
```

## Aircraft

- Registration: [N9851M](https://openairdocs.org/deregistered/N9851M-1974-05-21), registration cancelled 1974-05-21, S/N 6C (OpenAirDocs)
- Reported make and model: MAULE M4
- Registry model: [Maule M-4C](https://openairdocs.org/model/maule-m-4c) (registry code 5460105) (OpenAirDocs)
- Category: Airplane
- Engines: reciprocating
- Damage: Minor damage

## Other investigations on N9851M (3)

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.

- [NTSB DEN74AD048](https://openairdocs.org/ntsb/DEN74AD048), Apr 10, 1974: Maule M-4C (N9851M), Winston, NM, destroyed, 1 fatal
- [NTSB MIA70DKG24](https://openairdocs.org/ntsb/MIA70DKG24), Apr 10, 1970: Maule M-4C (N9851M), Chamblee, GA, substantial damage
- [NTSB MIA69F0127](https://openairdocs.org/ntsb/MIA69F0127), Aug 26, 1968: Maule M-4C (N9851M), Chattanooga, TN, substantial damage

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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