# NTSB LAX72FUM01: Mooney M20B, N74749, Chula Vista, CA, July 6, 1971

- Type: NTSB accident investigation
- Classification: Accident · No injuries · Closed
- Date: July 6, 1971
- Place: Chula Vista, CA · CHULA VISTA, CA
- Location: 32.6400° N, 117.0842° W: Placed by OpenAirDocs: center of Chula Vista, CA, within about 6 miles (OpenAirDocs)
- Nearby events: https://openairdocs.org/map.md?lat=32.6400&lon=-117.0842&mi=10
- Phase of flight: [Landing](https://openairdocs.org/ntsb-phases/550) (OpenAirDocs' grouping)
- Highest injury: No injuries
- Injuries: 2 uninjured
- Status: Completed, report December 10, 1971
- Report: Brief approved by the director
- NTSB case key (mKey): 162215
- NTSB case page: https://web.ntsb.gov/investigations/?ntsbnumber=LAX72FUM01
- Page: https://openairdocs.org/ntsb/LAX72FUM01

## NTSB brief

```
----------------------------------------------------------------------------------------------------------------------------
 FILE    DATE          LOCATION          AIRCRAFT DATA       INJURIES       FLIGHT                        PILOT DATA
                                                               F  S M/N     PURPOSE
----------------------------------------------------------------------------------------------------------------------------
3-0767   71/7/6    CHULA VISTA,CALIF   MOONEY M20B         CR-  0  0  1  NONCOMMERCIAL             COMMERCIAL, AGE 46, 1800
        TIME - 1537                    N74749              PX-  0  0  1  PLEASURE/PERSONAL TRANSP  TOTAL HOURS, 85 IN TYPE,
                                       DAMAGE-SUBSTANTIAL  OT-  0  0  0                            NOT INSTRUMENT RATED.
        NAME OF AIRPORT - BROWN
        DEPARTURE POINT             INTENDED DESTINATION
          SANTEE,CALIF                CHULA VISTA,CALIF
        TYPE OF ACCIDENT                                         PHASE OF OPERATION
           GEAR COLLAPSED                                           LANDING: ROLL
        PROBABLE CAUSE(S)
           PILOT IN COMMAND - ATTEMPTED OPERATION W/KNOWN DEFICIENCIES IN EQUIPMENT
           PERSONNEL - MAINTENANCE,SERVICING,INSPECTION: IMPROPER MAINTENANCE (MAINTENANCE PERSONNEL)
           AIRFRAME - LANDING GEAR: NORMAL RETRACTION/EXTENSION ASSEMBLY
           MISCELLANEOUS ACTS,CONDITIONS - PREVIOUS DAMAGE
        REMARKS- GEAR MECHANISM BENT WHILE ACFT UPHOLSTERED BY UNAUZ PSNL.PLT FLEW ACFT WITH KNOWN GEAR MALFUNCTION
```

## Aircraft

- Registration: [N74749](https://openairdocs.org/deregistered/N74749-2009-04-27), registration cancelled 2009-04-27, S/N 1749, built 1961 (OpenAirDocs)
- Reported make and model: MOONEY M20B
- Registry model: [Mooney M20B](https://openairdocs.org/model/mooney-m20b) (registry code 5870206) (OpenAirDocs)
- Registry engine: [Lycoming O&VO-360 series](https://openairdocs.org/engine/lycoming-o-vo-360-series) (registry code 41514, reciprocating) (OpenAirDocs)
- Category: Airplane
- Engines: reciprocating
- Damage: Substantial damage
- Airport: Brown

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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