# NTSB LAX77DVA19: Cessna 411, N4997T, Porterville, CA, February 17, 1977

- Type: NTSB accident investigation
- Classification: Accident · No injuries · Closed
- Date: February 17, 1977
- Place: Porterville, CA · PORTERVILLE, CA
- Location: 36.0635° N, 119.0336° W: Placed by OpenAirDocs: center of Porterville, CA, within about 6 miles (OpenAirDocs)
- Nearby events: https://openairdocs.org/map.md?lat=36.0635&lon=-119.0336&mi=10
- Phase of flight: [Landing](https://openairdocs.org/ntsb-phases/550) (OpenAirDocs' grouping)
- Highest injury: No injuries
- Injuries: 5 uninjured
- Status: Completed, report March 15, 1977
- Report: Brief approved by the director
- NTSB case key (mKey): 157403
- NTSB case page: https://web.ntsb.gov/investigations/?ntsbnumber=LAX77DVA19
- Page: https://openairdocs.org/ntsb/LAX77DVA19

## NTSB brief

```
----------------------------------------------------------------------------------------------------------------------------
 FILE    DATE          LOCATION          AIRCRAFT DATA       INJURIES       FLIGHT                        PILOT DATA
                                                               F  S M/N     PURPOSE
----------------------------------------------------------------------------------------------------------------------------
3-0185  77/2/17    PORTERVILLE,CA      CESSNA 411          CR-  0  0  1  NONCOMMERCIAL             COMMERCIAL, FL.INSTR.,
        TIME - 1500                    N4997T              PX-  0  0  4  PLEASURE/PERSONAL TRANSP  AGE 47, 8484 TOTAL HOURS,
                                       DAMAGE-SUBSTANTIAL  OT-  0  0  0                            8 IN TYPE, INSTRUMENT
                                                                                                   RATED.
        NAME OF AIRPORT - PORTERVILLE MUNI
        DEPARTURE POINT             INTENDED DESTINATION
          BISHOP,CA                   PORTERVILLE,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 - MATERIAL FAILURE
        REMARKS- LDG GEAR BELLCRANK ATTACH BOLT FAILED
```

## Aircraft

- Registration: [N4997T](https://openairdocs.org/deregistered/N4997T-2012-12-18), registration cancelled 2012-12-18, S/N 411-0197, built 1966 (OpenAirDocs)
- Reported make and model: CESSNA 411
- Registry model: [Cessna 411](https://openairdocs.org/model/cessna-411) (registry code 2075902) (OpenAirDocs)
- Registry engine: [Continental GTSIO-520-C](https://openairdocs.org/engine/continental-gtsio-520-c) (registry code 17035, reciprocating) (OpenAirDocs)
- Category: Airplane
- Engines: reciprocating
- Damage: Substantial damage
- Airport: Porterville Muni

## 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 19770217002629A](https://openairdocs.org/incident/19770217002629A), Feb 17, 1977: Cessna 411, Porterville, CA, Substantial damage. Ldg gear bellcrank attach bolt failed

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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