# NTSB OAK67D0323: Piper PA-24, N6023P, Concord, CA, March 25, 1967

- Type: NTSB accident investigation
- Classification: Accident · No injuries · Closed
- Date: March 25, 1967
- Place: Concord, CA · CONCORD, CA
- Location: 37.9722° N, 122.0016° W: Placed by OpenAirDocs: center of Concord, CA, within about 6 miles (OpenAirDocs)
- Nearby events: https://openairdocs.org/map.md?lat=37.9722&lon=-122.0016&mi=10
- Phase of flight: [Landing](https://openairdocs.org/ntsb-phases/550) (OpenAirDocs' grouping)
- Highest injury: No injuries
- Injuries: 1 uninjured
- Status: Completed, report August 26, 1967
- Report: Brief approved by the director
- NTSB case key (mKey): 117993
- NTSB case page: https://web.ntsb.gov/investigations/?ntsbnumber=OAK67D0323
- Page: https://openairdocs.org/ntsb/OAK67D0323

## NTSB brief

```
----------------------------------------------------------------------------------------------------------------------------
 FILE    DATE          LOCATION          AIRCRAFT DATA       INJURIES       FLIGHT                        PILOT DATA
                                                               F  S M/N     PURPOSE
----------------------------------------------------------------------------------------------------------------------------
3-0956  67/3/25    CONCORD,CALIF       PIPER PA-24         CR-  0  0  1  NONCOMMERCIAL             STUDENT, AGE 16, 45 TOTAL
        TIME - 1415                    N6023P              PX-  0  0  0  PLEASURE/PERSONAL TRANSP  HOURS, 14 IN TYPE, NOT
                                       DAMAGE-SUBSTANTIAL  OT-  0  0  0                            INSTRUMENT RATED.
        NAME OF AIRPORT - BUCHANAN FIELD
        TYPE OF ACCIDENT                                         PHASE OF OPERATION
           GEAR RETRACTED                                           LANDING: ROLL
        PROBABLE CAUSE(S)
           PILOT IN COMMAND - FAILED TO ASSURE THE GEAR WAS DOWN AND LOCKED
           AIRFRAME - LANDING GEAR: EMERGENCY/EXTENSION ASSEMBLY
        FACTOR(S)
           MISCELLANEOUS ACTS,CONDITIONS - IMPROPER CLEARANCE-TOLERANCE
           MISCELLANEOUS ACTS,CONDITIONS - EXCESSIVE-WEAR/PLAY
        REMARKS- PLT SUSPECTED MAIN GR EXTENSION SYSTEM MALFUNCTION,USED MANUAL EXT SYSTM.MANUAL SYSTM INOPERATIVE.
```

## Aircraft

- Registration: N6023P (not matched to a registry record)
- Reported make and model: PIPER PA-24
- Category: Airplane
- Engines: reciprocating
- Damage: Substantial damage
- Airport: Buchanan 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.

---
OpenAirDocs.org is an independent research project of [Contrail Labs](https://contraillabs.com/). It is not affiliated with the FAA or the NTSB. Source documents are U.S. government works in the public domain.