# NTSB MIA75FKJ66: Cessna 421B, N69289, Mobile, AL, June 29, 1975

- Type: NTSB accident investigation
- Classification: Accident · No injuries · Closed
- Date: June 29, 1975
- Place: Mobile, AL · MOBILE, AL
- Location: 30.6944° N, 88.0431° W: Placed by OpenAirDocs: center of Mobile, AL, within about 7 miles (OpenAirDocs)
- Nearby events: https://openairdocs.org/map.md?lat=30.6944&lon=-88.0431&mi=10
- Phase of flight: [Takeoff](https://openairdocs.org/ntsb-phases/300) (OpenAirDocs' grouping)
- Highest injury: No injuries
- Injuries: 2 uninjured
- Status: Completed, report September 10, 1975
- Report: Brief approved by the director
- NTSB case key (mKey): 149862
- NTSB case page: https://web.ntsb.gov/investigations/?ntsbnumber=MIA75FKJ66
- Page: https://openairdocs.org/ntsb/MIA75FKJ66

## NTSB brief

```
----------------------------------------------------------------------------------------------------------------------------
 FILE    DATE          LOCATION          AIRCRAFT DATA       INJURIES       FLIGHT                        PILOT DATA
                                                               F  S M/N     PURPOSE
----------------------------------------------------------------------------------------------------------------------------
3-2075  75/6/29    MOBILE,AL           CESSNA 421B         CR-  0  0  2  NONCOMMERCIAL             COMMERCIAL, AGE 44, 10566
        TIME - 1215                    N69289              PX-  0  0  0  CORP/EXEC                 TOTAL HOURS, 586 IN TYPE,
                                       DAMAGE-SUBSTANTIAL  OT-  0  0  0                            INSTRUMENT RATED.
        NAME OF AIRPORT - BATES FIELD
        DEPARTURE POINT             INTENDED DESTINATION
          MOBILE,AL                   GALVESTON,TX
        TYPE OF ACCIDENT                                         PHASE OF OPERATION
           FIRE OR EXPLOSION: ON GROUND                             TAKEOFF: RUN
        PROBABLE CAUSE(S)
           POWERPLANT - EXHAUST SYSTEM: CLAMPS
           MISCELLANEOUS ACTS,CONDITIONS - MATERIAL FAILURE
           MISCELLANEOUS ACTS,CONDITIONS - FIRE IN ENGINE
        FACTOR(S)
           SYSTEMS - FIRE WARNING SYSTEM: POWERPLANT
           SYSTEMS - FIRE EXTINGUISHING SYSTEM: POWERPLANT
        REMARKS- SLIP JOINT ASSEMBLY P/N 5155158-9 FAILED FWD OF WELD.EMGCY AD CVRS.FAILURE IN FIRE WARN & EXT SYS.
```

## Aircraft

- Registration: N69289 (not matched to a registry record)
- Reported make and model: CESSNA 421B
- Category: Airplane
- Engines: reciprocating
- Damage: Substantial damage
- Airport: Bates Field

## FAA reports on this event (1)

The FAA's own accident and incident reports, matched to the aircraft by N-number and date (OpenAirDocs).

- [Accident 19750629018379A](https://openairdocs.org/incident/19750629018379A), Jun 29, 1975: Cessna 421, Mobile, AL, Substantial damage. Slip joint assembly p/n 5155158-9 failed fwd of weld. Emgcy AD cvrs. Failure in fire warn & ext sys.

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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