# NTSB LAX77FUG31: Cessna 421, N601RS, Corona, CA, February 5, 1977

- Type: NTSB accident investigation
- Classification: Accident · No injuries · Closed
- Date: February 5, 1977
- Place: Corona, CA · CORONA, CA
- Location: 33.8753° N, 117.5664° W: Placed by OpenAirDocs: center of Corona, CA, within about 6 miles (OpenAirDocs)
- Nearby events: https://openairdocs.org/map.md?lat=33.8753&lon=-117.5664&mi=10
- Phase of flight: [Initial climb](https://openairdocs.org/ntsb-phases/350) (OpenAirDocs' grouping)
- Highest injury: No injuries
- Injuries: 2 uninjured
- Status: Completed, report March 14, 1977
- Report: Brief approved by the director
- NTSB case key (mKey): 156868
- NTSB case page: https://web.ntsb.gov/investigations/?ntsbnumber=LAX77FUG31
- Page: https://openairdocs.org/ntsb/LAX77FUG31

## NTSB brief

```
----------------------------------------------------------------------------------------------------------------------------
 FILE    DATE          LOCATION          AIRCRAFT DATA       INJURIES       FLIGHT                        PILOT DATA
                                                               F  S M/N     PURPOSE
----------------------------------------------------------------------------------------------------------------------------
3-0123   77/2/5    CORONA,CA           CESSNA 421          CR-  0  0  1  NONCOMMERCIAL             COMMERCIAL, FL.INSTR.,
        TIME - 1000                    N601RS              PX-  0  0  1  PLEASURE/PERSONAL TRANSP  AGE 45, 8786 TOTAL HOURS,
                                       DAMAGE-SUBSTANTIAL  OT-  0  0  0                            40 IN TYPE, INSTRUMENT
                                                                                                   RATED.
        NAME OF AIRPORT - CORONA
        DEPARTURE POINT             INTENDED DESTINATION
          CORONA,CA                   LOCAL
        TYPE OF ACCIDENT                                         PHASE OF OPERATION
           AIRFRAME FAILURE: IN FLIGHT                              TAKEOFF: INITIAL CLIMB
           GEAR COLLAPSED                                           LANDING: LEVEL OFF/TOUCHDOWN
        PROBABLE CAUSE(S)
           AIRFRAME - LANDING GEAR: MAIN GEAR-SHOCK ABSORBING ASSY,STRUTS,ATTACHMENTS,ETC.
           MISCELLANEOUS ACTS,CONDITIONS - MATERIAL FAILURE
        FACTOR(S)
           MISCELLANEOUS ACTS,CONDITIONS - PREVIOUS DAMAGE
        EMERGENCY CIRCUMSTANCES - PRECAUTIONARY LANDING ON AIRPORT
                                  SUSPECTED MECHANICAL DISCREPANCY
        REMARKS- SHAFT CONNECTING TORQUE LINK TO BARREL PISTON FAILED.
```

## Aircraft

- Registration: N601RS (not matched to a registry record)
- Reported make and model: CESSNA 421
- Category: Airplane
- Engines: reciprocating
- Damage: Substantial damage
- Airport: Corona

## 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 19770205001769A](https://openairdocs.org/incident/19770205001769A), Feb 5, 1977: Cessna 421, Corona, CA, Substantial damage. Shaft connecting torque link to barrel piston 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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