# NTSB LAX73FUM06: Piper PA-23, N156M, San Diego, CA, September 23, 1972

- Type: NTSB accident investigation
- Classification: Accident · No injuries · Closed
- Date: September 23, 1972
- Place: San Diego, CA · SAN DIEGO, CA
- Location: 32.7153° N, 117.1573° W: Placed by OpenAirDocs: center of San Diego, CA, within about 10 miles (OpenAirDocs)
- Nearby events: https://openairdocs.org/map.md?lat=32.7153&lon=-117.1573&mi=10
- Phase of flight: [Taxi](https://openairdocs.org/ntsb-phases/250) (OpenAirDocs' grouping)
- Highest injury: No injuries
- Injuries: 2 uninjured
- Status: Completed, report February 28, 1973
- Report: Brief approved by the director
- NTSB case key (mKey): 168607
- NTSB case page: https://web.ntsb.gov/investigations/?ntsbnumber=LAX73FUM06
- Page: https://openairdocs.org/ntsb/LAX73FUM06

## NTSB brief

```
----------------------------------------------------------------------------------------------------------------------------
 FILE    DATE          LOCATION          AIRCRAFT DATA       INJURIES       FLIGHT                        PILOT DATA
                                                               F  S M/N     PURPOSE
----------------------------------------------------------------------------------------------------------------------------
3-2515  72/9/23    SAN DIEGO,CALIF     PIPER PA-23         CR-  0  0  2  INSTRUCTIONAL             COMMERCIAL, FL.INSTR.,
        TIME - 1145                    N156M               PX-  0  0  0  DUAL                      AGE 33, 813 TOTAL HOURS,
                                       DAMAGE-SUBSTANTIAL  OT-  0  0  0                            43 IN TYPE, INSTRUMENT
                                                                                                   RATED.
        NAME OF AIRPORT - MONTGOMERY FIELD
        DEPARTURE POINT             INTENDED DESTINATION
          SAN DIEGO,CALIF             LOCAL
        TYPE OF ACCIDENT                                         PHASE OF OPERATION
           COLLIDED WITH: PARKED AIRCRAFT                           TAXI: TO TAKEOFF
        PROBABLE CAUSE(S)
           PILOT IN COMMAND - INADEQUATE SUPERVISION OF FLIGHT
           PILOT IN COMMAND - FAILED TO MAINTAIN DIRECTIONAL CONTROL
        FACTOR(S)
           AIRFRAME - LANDING GEAR: BRAKING SYSTEM (NORMAL SYSTEM)
           MISCELLANEOUS ACTS,CONDITIONS - LEAK/LEAKAGE
        REMARKS- R BRAKE FAILED,LEAK IN LINE. IP PUT STUDENT ON 1ST FAM RIDE IN L SEAT,NO BRAKES ON R SIDE.
```

## Aircraft

- Registration: [N156M](https://openairdocs.org/deregistered/N156M-2012-10-15), registration cancelled 2012-10-15, S/N 23-646, built 1956 (OpenAirDocs)
- Reported make and model: PIPER PA-23
- Registry model: [Piper PA-23-150](https://openairdocs.org/model/piper-pa-23-150) (registry code 7102303) (OpenAirDocs)
- Registry engine: [Lycoming 0-320 series](https://openairdocs.org/engine/lycoming-0-320-series) (registry code 41508, reciprocating) (OpenAirDocs)
- Category: Airplane
- Engines: reciprocating
- Damage: Substantial damage
- Airport: Montgomery Field

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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