# NTSB NYC70FHD07: Cessna 421A, N540JM, Philadelphia, PA, January 21, 1970

- Type: NTSB accident investigation
- Classification: Accident · No injuries · Closed
- Date: January 21, 1970
- Place: Philadelphia, PA · PHILADELPHIA, PA
- Location: 39.9523° N, 75.1638° W: Placed by OpenAirDocs: center of Philadelphia, PA, within about 7 miles (OpenAirDocs)
- Nearby events: https://openairdocs.org/map.md?lat=39.9523&lon=-75.1638&mi=10
- Phase of flight: [Landing](https://openairdocs.org/ntsb-phases/550) (OpenAirDocs' grouping)
- Highest injury: No injuries
- Injuries: 1 uninjured
- Status: Completed, report August 7, 1970
- Report: Brief approved by the director
- NTSB case key (mKey): 144122
- NTSB case page: https://web.ntsb.gov/investigations/?ntsbnumber=NYC70FHD07
- Page: https://openairdocs.org/ntsb/NYC70FHD07

## NTSB brief

```
----------------------------------------------------------------------------------------------------------------------------
 FILE    DATE          LOCATION          AIRCRAFT DATA       INJURIES       FLIGHT                        PILOT DATA
                                                               F  S M/N     PURPOSE
----------------------------------------------------------------------------------------------------------------------------
3-0704  70/1/21    PHILADELPHIA,PA     CESSNA 421A         CR-  0  0  1  NONCOMMERCIAL             ATP,FLIGHT INSTR., AGE
        TIME - 0908                    N540JM              PX-  0  0  0  CORP/EXEC                 45, 13082 TOTAL HOURS,
                                       DAMAGE-SUBSTANTIAL  OT-  0  0  0                            153 IN TYPE, INSTRUMENT
                                                                                                   RATED.
        NAME OF AIRPORT - PHILADELPHIA INTL
        DEPARTURE POINT             INTENDED DESTINATION         LAST ENROUTE STOP
          NORTH PHILA.,PA             WASHINGTON,DC                PHILADELPHIA,PA
        TYPE OF ACCIDENT                                         PHASE OF OPERATION
           GEAR COLLAPSED                                           LANDING: ROLL
        PROBABLE CAUSE(S)
           AIRFRAME - LANDING GEAR: SWITCHES,LEVERS,CRANKING MECHANISM,ETC.
           MISCELLANEOUS ACTS,CONDITIONS - MATERIAL FAILURE
        REMARKS- R GR ACTUATOR BELLCRANK FAILED.
```

## Aircraft

- Registration: [N540JM](https://openairdocs.org/deregistered/N540JM-2006-06-13), registration cancelled 2006-06-13, S/N 421A0085, built 1969 (OpenAirDocs)
- Reported make and model: CESSNA 421A
- Registry model: [Cessna 421A](https://openairdocs.org/model/cessna-421a) (registry code 2076012) (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: Philadelphia Intl

## Other investigations on N540JM (1)

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.

- [NTSB IAD70F0115](https://openairdocs.org/ntsb/IAD70F0115), Dec 1, 1969: Cessna 421A (N540JM), Friendshp Arpt, MD, substantial damage

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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