# NTSB LAX80DXQ22: Cessna 310I, N8169M, Mammoth Lakes, CA, March 7, 1980

- Type: NTSB accident investigation
- Classification: Accident · No injuries · Closed
- Date: March 7, 1980
- Place: Mammoth Lakes, CA · MAMMOTH LAKES, CA
- Location: 37.6244° N, 118.9884° W: Placed by OpenAirDocs: center of Mammoth Lakes, CA, within about 6 miles (OpenAirDocs)
- Nearby events: https://openairdocs.org/map.md?lat=37.6244&lon=-118.9884&mi=10
- Phase of flight: [Landing](https://openairdocs.org/ntsb-phases/550) (OpenAirDocs' grouping)
- Highest injury: No injuries
- Injuries: 5 uninjured
- Status: Completed, report June 23, 1980
- Report: Brief approved by the director
- NTSB case key (mKey): 131979
- NTSB case page: https://web.ntsb.gov/investigations/?ntsbnumber=LAX80DXQ22
- Page: https://openairdocs.org/ntsb/LAX80DXQ22

## NTSB brief

```
----------------------------------------------------------------------------------------------------------------------------
 FILE    DATE          LOCATION          AIRCRAFT DATA       INJURIES       FLIGHT                        PILOT DATA
                                                               F  S M/N     PURPOSE
----------------------------------------------------------------------------------------------------------------------------
3-0469   80/3/7    MAMMOTH LAKES,CA    CESSNA 310I         CR-  0  0  1  NONCOMMERCIAL             COMMERCIAL, AGE 32, 1212
        TIME - 1555                    N8169M              PX-  0  0  4  PLEASURE/PERSONAL TRANSP  TOTAL HOURS, 56 IN TYPE,
                                       DAMAGE-SUBSTANTIAL  OT-  0  0  0                            INSTRUMENT RATED.
        NAME OF AIRPORT - MAMMOTH LAKES
        DEPARTURE POINT             INTENDED DESTINATION
          OXNARD,CA                   MAMMOTH LAKES,CA
        TYPE OF ACCIDENT                                         PHASE OF OPERATION
           GEAR COLLAPSED                                           LANDING: ROLL
        PROBABLE CAUSE(S)
           AIRFRAME - LANDING GEAR: MAIN GEAR-SHOCK ABSORBING ASSY,STRUTS,ATTACHMENTS,ETC.
           MISCELLANEOUS ACTS,CONDITIONS - FATIGUE FRACTURE
        REMARKS- R MAIN LANDING GEAR SUPPORT FORGING,P/N 0822180-6,FAILED.
```

## Aircraft

- Registration: [N8169M](https://openairdocs.org/deregistered/N8169M-1983-05-21), registration cancelled 1983-05-21, S/N 310I0169 (OpenAirDocs)
- Reported make and model: CESSNA 310I
- Registry model: [Cessna 310I](https://openairdocs.org/model/cessna-310i) (registry code 2074224) (OpenAirDocs)
- Category: Airplane
- Engines: reciprocating
- Damage: Substantial damage
- Airport: Mammoth Lakes

## FAA reports on this event (1)

The FAA's own accident and incident reports, matched to the aircraft by N-number and date (OpenAirDocs).

- [Accident 19800307004989A](https://openairdocs.org/incident/19800307004989A), Mar 7, 1980: Cessna 310I, Mammoth Lakes, CA, Substantial damage. Right landing gear collapsed on landing roll. Veered into snowbank. Bulkhead failed at attach point.

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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