# NTSB NYC75AN086: Beech 99, N7940, Hyannis, MA, February 23, 1975

- Type: NTSB accident investigation
- Classification: Accident · Serious injuries · Closed
- Date: February 23, 1975
- Place: Hyannis, MA · HYANNIS, MA
- Location: 41.6529° N, 70.2828° W: Placed by OpenAirDocs: center of Hyannis, MA, within about 6 miles (OpenAirDocs)
- Nearby events: https://openairdocs.org/map.md?lat=41.6529&lon=-70.2828&mi=10
- Phase of flight: [Enroute](https://openairdocs.org/ntsb-phases/400) (OpenAirDocs' grouping)
- Highest injury: Serious injuries
- Injuries: 1 serious, 3 uninjured
- Status: Completed, report April 15, 1975
- Report: Brief approved by the director
- NTSB case key (mKey): 146407
- NTSB case page: https://web.ntsb.gov/investigations/?ntsbnumber=NYC75AN086
- Page: https://openairdocs.org/ntsb/NYC75AN086

## NTSB brief

```
----------------------------------------------------------------------------------------------------------------------------
 FILE    DATE          LOCATION          AIRCRAFT DATA       INJURIES       FLIGHT                        PILOT DATA
                                                               F  S M/N     PURPOSE
----------------------------------------------------------------------------------------------------------------------------
1-0007  75/2/23  NR.HYANNIS,MA         BEECH 99            CR-  0  1  1  SCHED DOM PASSG SRV       AIRLINE TRANSPORT, AGE
        TIME - 1045                    N7940               PX-  0  0  2                            27, 3500 TOTAL HOURS,
                                       DAMAGE-SUBSTANTIAL  OT-  0  0  0                            2000 IN TYPE, INSTRUMENT
                                                                                                   RATED.
        OPERATOR - AIR NEW ENGLAND
        DEPARTURE POINT             INTENDED DESTINATION
          NANTUCKET,MA               HYANNIS,MA
        TYPE OF ACCIDENT                                         PHASE OF OPERATION
           ENGINE FAILURE OR MALFUNCTION                            IN FLIGHT: NORMAL CRUISE
           MISCELLANEOUS                                            IN FLIGHT: NORMAL CRUISE
        PROBABLE CAUSE(S)
           POWERPLANT - TURBINE ASSEMBLY: OTHER
           POWERPLANT - TURBINE ASSEMBLY: BLADE,TURBINE WHEEL
           MISCELLANEOUS ACTS,CONDITIONS - MATERIAL FAILURE
        COMPLETE POWER LOSS - COMPLETE ENGINE FAILURE/FLAMEOUT-1 ENGINE
        EMERGENCY CIRCUMSTANCES - PRECAUTIONARY LANDING ON AIRPORT
                                  SUSPECTED OR KNOWN AIRCRAFT DAMAGE
                                  SUSPECTED MECHANICAL DISCREPANCY
        REMARKS- FIRST STAGE Y REDUCTION GR BUSHING,PN 3010094,FAILED.ENG PARTS STRUCK FUSELAGE,INJURED COPILOT.
```

## Aircraft

- Registration: N7940 (not matched to a registry record)
- Reported make and model: BEECH 99
- Category: Airplane
- Engines: turbo prop
- Damage: 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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