# NTSB OAK66A0039: Beech D18S, N39U, Oakland, CA, March 24, 1966

- Type: NTSB accident investigation
- Classification: Accident · No injuries · Closed
- Date: March 24, 1966
- Place: Oakland, CA · OAKLAND, CA
- Location: 37.8044° N, 122.2708° W: Placed by OpenAirDocs: center of Oakland, CA, within about 6 miles (OpenAirDocs)
- Nearby events: https://openairdocs.org/map.md?lat=37.8044&lon=-122.2708&mi=10
- Phase of flight: [Landing](https://openairdocs.org/ntsb-phases/550) (OpenAirDocs' grouping)
- Highest injury: No injuries
- Injuries: 4 uninjured
- Status: Completed, report August 22, 1966
- Report: Brief approved by the director
- NTSB case key (mKey): 172781
- NTSB case page: https://web.ntsb.gov/investigations/?ntsbnumber=OAK66A0039
- Page: https://openairdocs.org/ntsb/OAK66A0039

## NTSB brief

```
----------------------------------------------------------------------------------------------------------------------------
 FILE    DATE          LOCATION          AIRCRAFT DATA       INJURIES       FLIGHT                        PILOT DATA
                                                               F  S M/N     PURPOSE
----------------------------------------------------------------------------------------------------------------------------
3-1572  66/3/24    OAKLAND CALIF       BEECH D18S          CR-  0  0  2  COMMERCIAL                ATP,FLIGHT INSTR., AGE
        TIME - 2221                    N39U                PX-  0  0  2  AIR TAXI-PASSG            44, 12072 TOTAL HOURS,
                                       DAMAGE-SUBSTANTIAL  OT-  0  0  0                            231 IN TYPE, INSTRUMENT
                                                                                                   RATED.
        NAME OF AIRPORT - OAKLAND
        TYPE OF ACCIDENT                                         PHASE OF OPERATION
           WHEELS-UP                                                LANDING: LEVEL OFF/TOUCHDOWN
        PROBABLE CAUSE(S)
           AIRFRAME - LANDING GEAR: NORMAL RETRACTION/EXTENSION ASSEMBLY
           PERSONNEL - MAINTENANCE,SERVICING,INSPECTION: INADEQUATE MAINTENANCE AND INSPECTION
        EMERGENCY CIRCUMSTANCES - PRECAUTIONARY LANDING ON AIRPORT
        REMARKS- LEFT MAIN GEAR TORQUE SHAFT END BEARING DISPLACED PERMITTING DRIVE CHAIN TO JUMP SPROCKET.
```

## Aircraft

- Registration: [N39U](https://openairdocs.org/deregistered/N39U-1976-05-21), registration cancelled 1976-05-21, S/N A-279 (OpenAirDocs)
- Reported make and model: BEECH D18S
- Registry model: [Beech D18S](https://openairdocs.org/model/beech-d18s) (registry code 1151004) (OpenAirDocs)
- Category: Airplane
- Engines: reciprocating
- Damage: Substantial damage
- Airport: Oakland

## Other investigations on N39U (1)

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 OAK76FVG58](https://openairdocs.org/ntsb/OAK76FVG58), Mar 21, 1976: Beech D18S (N39U), Woodland, CA, 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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