# NTSB MIA66F0154: Mooney M21, N6840U, Arecibo, PR, August 13, 1965

- Type: NTSB accident investigation
- Classification: Accident · No injuries · Closed
- Date: August 13, 1965
- Place: Arecibo, PR · ARECIBO, PR
- Location: 18.4547° N, 66.7353° W: Placed by OpenAirDocs: center of Arecibo, PR, within about 6 miles (OpenAirDocs)
- Nearby events: https://openairdocs.org/map.md?lat=18.4547&lon=-66.7353&mi=10
- Phase of flight: [Landing](https://openairdocs.org/ntsb-phases/550) (OpenAirDocs' grouping)
- Highest injury: No injuries
- Injuries: 1 uninjured
- Status: Completed, report September 16, 1965
- Report: Brief approved by the director
- NTSB case key (mKey): 178892
- NTSB case page: https://web.ntsb.gov/investigations/?ntsbnumber=MIA66F0154
- Page: https://openairdocs.org/ntsb/MIA66F0154

## NTSB brief

```
----------------------------------------------------------------------------------------------------------------------------
 FILE    DATE          LOCATION          AIRCRAFT DATA       INJURIES       FLIGHT                        PILOT DATA
                                                               F  S M/N     PURPOSE
----------------------------------------------------------------------------------------------------------------------------
3-2170  65/8/13    ARECIBO PR          MOONEY M21          CR-  0  0  1  NONCOMMERCIAL             STUDENT, AGE 37, 272
        TIME - 1120                    N6840U              PX-  0  0  0  PRACTICE                  TOTAL HOURS, ALL IN TYPE,
                                       DAMAGE-SUBSTANTIAL  OT-  0  0  0                            NOT INSTRUMENT RATED.
        NAME OF AIRPORT - SANTANA
        TYPE OF ACCIDENT                                         PHASE OF OPERATION
           WHEELS-UP                                                LANDING: LEVEL OFF/TOUCHDOWN
        PROBABLE CAUSE(S)
           PILOT IN COMMAND - FAILED TO EXTEND LANDING GEAR
        FACTOR(S)
           AIRFRAME - LANDING GEAR: LANDING GEAR WARNING AND INDICATING COMPONENTS
        REMARKS- GEAR WARNING HORN IMOPERATIVE
```

## Aircraft

- Registration: [N6840U](https://openairdocs.org/deregistered/N6840U-1972-02-01), registration cancelled 1972-02-01, S/N 2545 (OpenAirDocs)
- Reported make and model: MOONEY M21
- Registry model: [Mooney M20C](https://openairdocs.org/model/mooney-m20c) (registry code 5870208) (OpenAirDocs)
- Category: Airplane
- Engines: reciprocating
- Damage: Substantial damage
- Airport: Santana

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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