# NTSB UNK64X1505: Mooney MK21, N6802U, Huntsville, AL, April 29, 1964

- Type: NTSB accident investigation
- Classification: Accident · No injuries · Closed
- Date: April 29, 1964
- Place: Huntsville, AL · HUNTSVILLE, AL
- Location: 34.7304° N, 86.5861° W: Placed by OpenAirDocs: center of Huntsville, AL, within about 9 miles (OpenAirDocs)
- Nearby events: https://openairdocs.org/map.md?lat=34.7304&lon=-86.5861&mi=10
- Phase of flight: [Landing](https://openairdocs.org/ntsb-phases/550) (OpenAirDocs' grouping)
- Highest injury: No injuries
- Injuries: 2 uninjured
- Status: Completed, report September 15, 1964
- Report: Brief approved by the director
- NTSB case key (mKey): 184438
- NTSB case page: https://web.ntsb.gov/investigations/?ntsbnumber=UNK64X1505
- Page: https://openairdocs.org/ntsb/UNK64X1505

## NTSB brief

```
----------------------------------------------------------------------------------------------------------------------------
 FILE    DATE          LOCATION          AIRCRAFT DATA       INJURIES       FLIGHT                        PILOT DATA
                                                               F  S M/N     PURPOSE
----------------------------------------------------------------------------------------------------------------------------
3-1071  64/4/29    HUNTSVILLE ALA      MOONEY MK21         CR-  0  0  1  NONCOMMERCIAL             PRIVATE, AGE 41, 510
        TIME - 2120                    N6802U              PX-  0  0  1  PLEASURE/PERSONAL TRANSP  TOTAL HOURS, 60 IN TYPE,
                                       DAMAGE-SUBSTANTIAL  OT-  0  0  0                            NOT INSTRUMENT RATED.
        NAME OF AIRPORT - MADISON COUNTY
        TYPE OF ACCIDENT                                         PHASE OF OPERATION
           GEAR RETRACTED                                           LANDING: ROLL
        PROBABLE CAUSE(S)
           AIRFRAME - LANDING GEAR: GEAR LOCKING MECHANISM
           MISCELLANEOUS ACTS,CONDITIONS - IMPROPERLY INSTALLED
           PERSONNEL - MAINTENANCE,SERVICING,INSPECTION: IMPROPER MAINTENANCE (MAINTENANCE PERSONNEL)
        FACTOR(S)
           MISCELLANEOUS ACTS,CONDITIONS - OVER TORQUED
```

## Aircraft

- Registration: [N6802U](https://openairdocs.org/aircraft/N6802U), registered now, S/N 2517, built 1963 (OpenAirDocs)
- Reported make and model: MOONEY MK21
- Registry model: [Mooney M20C](https://openairdocs.org/model/mooney-m20c) (registry code 5870208) (OpenAirDocs)
- Category: Airplane
- Engines: reciprocating
- Damage: Substantial damage
- Airport: Madison County

## Other investigations on N6802U (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 MIA67D0269](https://openairdocs.org/ntsb/MIA67D0269), Oct 19, 1966: Mooney M20C (N6802U), Sylacauga, AL, 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.

---
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.