# NTSB IAD70AI04I: Hiller Acft FH1100, N371FH, Bowie, MD, February 2, 1970

- Type: NTSB accident investigation
- Classification: Accident · Serious injuries · Closed
- Date: February 2, 1970
- Place: Bowie, MD · BOWIE, MD
- Location: 38.9547° N, 76.7388° W: Placed by OpenAirDocs: center of Bowie, MD, within about 6 miles (OpenAirDocs)
- Nearby events: https://openairdocs.org/map.md?lat=38.9547&lon=-76.7388&mi=10
- Phase of flight: [Enroute](https://openairdocs.org/ntsb-phases/400) (OpenAirDocs' grouping)
- Highest injury: Serious injuries
- Injuries: 4 serious, 1 minor
- Status: Completed, report June 16, 1970
- Report: Brief approved by the director
- NTSB case key (mKey): 142891
- NTSB case page: https://web.ntsb.gov/investigations/?ntsbnumber=IAD70AI04I
- Page: https://openairdocs.org/ntsb/IAD70AI04I

## NTSB brief

```
----------------------------------------------------------------------------------------------------------------------------
 FILE    DATE          LOCATION          AIRCRAFT DATA       INJURIES       FLIGHT                        PILOT DATA
                                                               F  S M/N     PURPOSE
----------------------------------------------------------------------------------------------------------------------------
3-0350   70/2/2    BOWIE,MD            HILLER ACFT FH1100  CR-  0  1  0  COMMERCIAL                COMMERCIAL, AGE 25, 2941
        TIME - 1910                    N371FH              PX-  0  3  1  AIR TAXI-PASSG            TOTAL HOURS, 122 IN TYPE,
                                       DAMAGE-SUBSTANTIAL  OT-  0  0  0                            INSTRUMENT RATED.
        NAME OF AIRPORT - BELTSVILLE
        DEPARTURE POINT             INTENDED DESTINATION
          FRIENDSHIP ARPT             NATIONAL ARPT
        TYPE OF ACCIDENT                                         PHASE OF OPERATION
           ENGINE FAILURE OR MALFUNCTION                            IN FLIGHT: NORMAL CRUISE
           HARD LANDING                                             LANDING: POWER-OFF AUTOROTATIVE LANDING
        PROBABLE CAUSE(S)
           PERSONNEL - MAINTENANCE,SERVICING,INSPECTION: IMPROPER MAINTENANCE (MAINTENANCE PERSONNEL)
           POWERPLANT - TURBINE ASSEMBLY: OTHER
           POWERPLANT - COMPRESSOR ASSEMBLY: OTHER
           MISCELLANEOUS ACTS,CONDITIONS - MATERIAL FAILURE
           MISCELLANEOUS - EVASIVE MANEUVER TO AVOID COLLISION
           TERRAIN - HIGH OBSTRUCTIONS
        COMPLETE POWER LOSS - COMPLETE ENGINE FAILURE/FLAMEOUT-1 ENGINE
        EMERGENCY CIRCUMSTANCES - FORCED LANDING OFF AIRPORT ON LAND
        REMARKS- GENERAL DETERIORATION OF COMPRESSOR/TURBINE ASSYS,708 HR TT ENG.TELE WIRES ON APCH.ACFT CUT 1 WIRE
```

## Aircraft

- Registration: [N371FH](https://openairdocs.org/deregistered/N371FH-1970-06-29), registration cancelled 1970-06-29, S/N 99, built 1968 (OpenAirDocs)
- Reported make and model: HILLER ACFT FH1100
- Registry model: [Fairchild Hiller FH-1100](https://openairdocs.org/model/fairchild-hiller-fh-1100) (registry code 3376502) (OpenAirDocs)
- Category: Helicopter
- Engines: turbo shaft
- Damage: Substantial damage
- Airport: Beltsville

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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