# NTSB CHI71AC030: Cessna 310F, N6757X, Ann Arbor, MI, November 8, 1970

- Type: NTSB accident investigation
- Classification: Accident · Fatal · Closed
- Date: November 8, 1970
- Place: Ann Arbor, MI · ANN ARBOR, MI
- Location: 42.2761° N, 83.7312° W: Placed by OpenAirDocs: center of Ann Arbor, MI, within about 6 miles (OpenAirDocs)
- Nearby events: https://openairdocs.org/map.md?lat=42.2761&lon=-83.7312&mi=10
- Phase of flight: [Enroute](https://openairdocs.org/ntsb-phases/400) (OpenAirDocs' grouping)
- Highest injury: Fatal
- Injuries: 3 fatal
- Status: Completed, report March 9, 1971
- Report: Brief approved by the director
- NTSB case key (mKey): 176293
- NTSB case page: https://web.ntsb.gov/investigations/?ntsbnumber=CHI71AC030
- Page: https://openairdocs.org/ntsb/CHI71AC030

## NTSB brief

```
----------------------------------------------------------------------------------------------------------------------------
 FILE    DATE          LOCATION          AIRCRAFT DATA       INJURIES       FLIGHT                        PILOT DATA
                                                               F  S M/N     PURPOSE
----------------------------------------------------------------------------------------------------------------------------
3-2481   70/11/8   ANN ARBOR,MICH      CESSNA 310F         CR-  1  0  0  NONCOMMERCIAL             COMMERCIAL, AGE 48, 900
        TIME - 1710                    N6757X              PX-  2  0  0  BUSINESS                  TOTAL HOURS, UNK/NR IN
                                       DAMAGE-DESTROYED    OT-  0  0  0                            TYPE, NOT INSTRUMENT
                                                                                                   RATED.
        NAME OF AIRPORT - ANN ARBOR
        DEPARTURE POINT             INTENDED DESTINATION
          ALLIANCE,OHIO               MASON,MICH
        TYPE OF ACCIDENT                                         PHASE OF OPERATION
           ENGINE FAILURE OR MALFUNCTION                            IN FLIGHT: NORMAL CRUISE
           COLLIDED WITH: RESIDENCE(S)                              IN FLIGHT: UNCONTROLLED DESCENT
        PROBABLE CAUSE(S)
           POWERPLANT - ENGINE STRUCTURE: MASTER AND CONNECTING RODS
           MISCELLANEOUS ACTS,CONDITIONS - IMPROPERLY SECURED
           PERSONNEL - MAINTENANCE,SERVICING,INSPECTION: IMPROPER MAINTENANCE (MAINTENANCE PERSONNEL)
           PILOT IN COMMAND - FAILED TO FOLLOW APPROVED PROCEDURES,DIRECTIVES,ETC.
        FACTOR(S)
           MISCELLANEOUS ACTS,CONDITIONS - IMPROPER EMERGENCY PROCEDURES
           MISCELLANEOUS ACTS,CONDITIONS - FIRE IN ENGINE
        PARTIAL POWER LOSS - PARTIAL LOSS OF POWER - 1 ENGINE
        EMERGENCY CIRCUMSTANCES - FORCED LANDING OFF AIRPORT ON LAND
        REMARKS- NR 5 CYL L ENG CONROD CAP BOLT FAILED.NOT SAFETIED.LAST CYL MAINT 1965.L ENG CAUGHT FIRE.NOT FEATH
```

## Aircraft

- Registration: [N6757X](https://openairdocs.org/deregistered/N6757X-1971-01-15), registration cancelled 1971-01-15, S/N 310-0057 (OpenAirDocs)
- Reported make and model: CESSNA 310F
- Registry model: [Cessna 310F](https://openairdocs.org/model/cessna-310f) (registry code 2074216) (OpenAirDocs)
- Category: Airplane
- Engines: reciprocating
- Damage: Destroyed
- Airport: Ann Arbor

## Other investigations on N6757X (2)

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 MIA67F0248](https://openairdocs.org/ntsb/MIA67F0248), Oct 14, 1966: Cessna 310F (N6757X), Tampa, FL, substantial damage
- [NTSB NYC66F0652](https://openairdocs.org/ntsb/NYC66F0652), May 4, 1966: Cessna 310F (N6757X), Elysburg, 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.

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