# NTSB DIA68F0177: Mooney M20F, N2921L, Concord, NC, February 18, 1968

- Type: NTSB accident investigation
- Classification: Accident · No injuries · Closed
- Date: February 18, 1968
- Place: Concord, NC · CONCORD, NC
- Location: 35.4088° N, 80.5795° W: Placed by OpenAirDocs: center of Concord, NC, within about 6 miles (OpenAirDocs)
- Nearby events: https://openairdocs.org/map.md?lat=35.4088&lon=-80.5795&mi=10
- Phase of flight: [Landing](https://openairdocs.org/ntsb-phases/550) (OpenAirDocs' grouping)
- Highest injury: No injuries
- Injuries: 2 uninjured
- Status: Completed, report April 16, 1968
- Report: Brief approved by the director
- NTSB case key (mKey): 111930
- NTSB case page: https://web.ntsb.gov/investigations/?ntsbnumber=DIA68F0177
- Page: https://openairdocs.org/ntsb/DIA68F0177

## NTSB brief

```
----------------------------------------------------------------------------------------------------------------------------
 FILE    DATE          LOCATION          AIRCRAFT DATA       INJURIES       FLIGHT                        PILOT DATA
                                                               F  S M/N     PURPOSE
----------------------------------------------------------------------------------------------------------------------------
3-0416  68/2/18    CONCORD,NC          MOONEY M20F         CR-  0  0  2  INSTRUCTIONAL             COMMERCIAL, FL.INSTR.,
        TIME - 1730                    N2921L              PX-  0  0  0  DUAL                      AGE UNK/NR, UNK/NR TOTAL
                                       DAMAGE-SUBSTANTIAL  OT-  0  0  0                            HOURS, UNK/NR IN TYPE,
                                                                                                   UNK/NR INSTRUMENT RATED.
        NAME OF AIRPORT - PROPST
        TYPE OF ACCIDENT                                         PHASE OF OPERATION
           WHEELS-UP                                                LANDING: LEVEL OFF/TOUCHDOWN
        PROBABLE CAUSE(S)
           AIRFRAME - LANDING GEAR: NORMAL RETRACTION/EXTENSION ASSEMBLY
           AIRFRAME - LANDING GEAR: GEAR LOCKING MECHANISM
           MISCELLANEOUS ACTS,CONDITIONS - IMPROPER ALIGNMENT/ADJUSTMENT
           PERSONNEL - MAINTENANCE,SERVICING,INSPECTION: INADEQUATE MAINTENANCE AND INSPECTION
        REMARKS- IMPROPER RIGGING OF RT MAIN LDG GR RETRACT SYSTEM.32 HRS SINCE ANNUAL INSPT,NOT DETECTED ON ANNUAL
```

## Aircraft

- Registration: [N2921L](https://openairdocs.org/aircraft/N2921L), registered now, S/N 670315, built 1967 (OpenAirDocs)
- Reported make and model: MOONEY M20F
- Registry model: [Mooney M20F](https://openairdocs.org/model/mooney-m20f) (registry code 5870214) (OpenAirDocs)
- Registry engine: [Lycoming I0360 series](https://openairdocs.org/engine/lycoming-i0360-series) (registry code 41515, reciprocating) (OpenAirDocs)
- Category: Airplane
- Engines: reciprocating
- Damage: Substantial damage
- Airport: Propst

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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