# NTSB IAD70F0115: Cessna 421A, N540JM, Friendshp Arpt, MD, December 1, 1969

- Type: NTSB accident investigation
- Classification: Accident · No injuries · Closed
- Date: December 1, 1969
- Place: Friendshp Arpt, MD · FRIENDSHP ARPT, MD
- Phase of flight: [Landing](https://openairdocs.org/ntsb-phases/550) (OpenAirDocs' grouping)
- Highest injury: No injuries
- Injuries: 2 uninjured
- Status: Completed, report May 28, 1970
- Report: Brief approved by the director
- NTSB case key (mKey): 146054
- NTSB case page: https://web.ntsb.gov/investigations/?ntsbnumber=IAD70F0115
- Page: https://openairdocs.org/ntsb/IAD70F0115

## NTSB brief

```
----------------------------------------------------------------------------------------------------------------------------
 FILE    DATE          LOCATION          AIRCRAFT DATA       INJURIES       FLIGHT                        PILOT DATA
                                                               F  S M/N     PURPOSE
----------------------------------------------------------------------------------------------------------------------------
3-4608   69/12/1   FRIENDSHP ARPT,MD   CESSNA 421A         CR-  0  0  1  NONCOMMERCIAL             ATP,FLIGHT INSTR., AGE
        TIME - 1600                    N540JM              PX-  0  0  1  CORP/EXEC                 44, 13063 TOTAL HOURS,
                                       DAMAGE-SUBSTANTIAL  OT-  0  0  0                            147 IN TYPE, INSTRUMENT
                                                                                                   RATED.
        NAME OF AIRPORT - FRIENDSHIP
        DEPARTURE POINT             INTENDED DESTINATION
          PHILADELPHIA,PA             FRIENDSHP ARPT,MD
        TYPE OF ACCIDENT                                         PHASE OF OPERATION
           GEAR COLLAPSED                                           LANDING: ROLL
        PROBABLE CAUSE(S)
           MISCELLANEOUS - UNDETERMINED
        REMARKS- R LDG GR ACTUATING BELLCRANK BKN,PIVOT BOLT SHEARED,CAUSE NOT DETERMINED.20DEG X-WIND 38K GUSTING.
```

## 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: Friendship

## 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 NYC70FHD07](https://openairdocs.org/ntsb/NYC70FHD07), Jan 21, 1970: Cessna 421A (N540JM), Philadelphia, PA, 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.

---
OpenAirDocs.org is an independent research project of [Contrail Labs](https://contraillabs.com/). It is not affiliated with the FAA or the NTSB. Source documents are U.S. government works in the public domain.