# NTSB UNK64X0496: Mooney M20A, N6544B, Allentown, PA, February 8, 1964

- Type: NTSB accident investigation
- Classification: Accident · No injuries · Closed
- Date: February 8, 1964
- Place: Allentown, PA · ALLENTOWN, PA
- Location: 40.5936° N, 75.4784° W: Placed by OpenAirDocs: center of Allentown, PA, within about 6 miles (OpenAirDocs)
- Nearby events: https://openairdocs.org/map.md?lat=40.5936&lon=-75.4784&mi=10
- Phase of flight: [Landing](https://openairdocs.org/ntsb-phases/550) (OpenAirDocs' grouping)
- Highest injury: No injuries
- Injuries: 2 uninjured
- Status: Completed
- Report: Brief approved by the director
- NTSB case key (mKey): 185745
- NTSB case page: https://web.ntsb.gov/investigations/?ntsbnumber=UNK64X0496
- Page: https://openairdocs.org/ntsb/UNK64X0496

## NTSB brief

```
----------------------------------------------------------------------------------------------------------------------------
 FILE    DATE          LOCATION          AIRCRAFT DATA       INJURIES       FLIGHT                        PILOT DATA
                                                               F  S M/N     PURPOSE
----------------------------------------------------------------------------------------------------------------------------
3-0306   64/2/8    ALLENTOWN PA        MOONEY M20A         CR-  0  0  1  NONCOMMERCIAL             COMMERCIAL, AGE 32, 1300
        TIME - 0900                    N6544B              PX-  0  0  1  PRACTICE                  TOTAL HOURS, 6 IN TYPE,
                                       DAMAGE-SUBSTANTIAL  OT-  0  0  0                            INSTRUMENT RATED.
        TYPE OF ACCIDENT                                         PHASE OF OPERATION
           GEAR RETRACTED                                           LANDING: ROLL
        PROBABLE CAUSE(S)
           PERSONNEL - PRODUCTION-DESIGN-PERSONNEL: POOR/INADEQUATE DESIGN
           AIRFRAME - LANDING GEAR: MAIN GEAR-SHOCK ABSORBING ASSY,STRUTS,ATTACHMENTS,ETC.
        REMARKS- RIGHT GEAR ATTACH BUSHING ROTATED OFF BOLT.
```

## Aircraft

- Registration: [N6544B](https://openairdocs.org/deregistered/N6544B-1974-07-20), registration cancelled 1974-07-20, S/N 1213 (OpenAirDocs)
- Reported make and model: MOONEY M20A
- Registry model: [Mooney M20A](https://openairdocs.org/model/mooney-m20a) (registry code 5870204) (OpenAirDocs)
- Category: Airplane
- Engines: reciprocating
- Damage: Substantial damage

## Other investigations on N6544B (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 UNK69X0103](https://openairdocs.org/ntsb/UNK69X0103), Dec 31, 1968: Mooney M20A (N6544B), Mexico City, Mexico, 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.

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