# NTSB CHI76AC084: Enstrom F-28A, N88BD, Enon, OH, August 9, 1976

- Type: NTSB accident investigation
- Classification: Accident · Fatal · Closed
- Date: August 9, 1976
- Place: Enon, OH · ENON, OH
- Location: 39.8662° N, 83.9336° W: Placed by OpenAirDocs: center of Enon, OH, within about 6 miles (OpenAirDocs)
- Nearby events: https://openairdocs.org/map.md?lat=39.8662&lon=-83.9336&mi=10
- Phase of flight: [Enroute](https://openairdocs.org/ntsb-phases/400) (OpenAirDocs' grouping)
- Highest injury: Fatal
- Injuries: 2 fatal
- Status: Completed, report May 11, 1977
- Report: Brief approved by the director
- NTSB case key (mKey): 156069
- NTSB case page: https://web.ntsb.gov/investigations/?ntsbnumber=CHI76AC084
- Page: https://openairdocs.org/ntsb/CHI76AC084

## NTSB brief

```
----------------------------------------------------------------------------------------------------------------------------
 FILE    DATE          LOCATION          AIRCRAFT DATA       INJURIES       FLIGHT                        PILOT DATA
                                                               F  S M/N     PURPOSE
----------------------------------------------------------------------------------------------------------------------------
3-4077   76/8/9    ENON,OH             ENSTROM F-28A       CR-  1  0  0  NONCOMMERCIAL             PRIVATE, AGE 41, 1000
        TIME - 1618                    N88BD               PX-  1  0  0  BUSINESS                  TOTAL HOURS, ALL IN TYPE,
                                       DAMAGE-DESTROYED    OT-  0  0  0                            NOT INSTRUMENT RATED.
        DEPARTURE POINT             INTENDED DESTINATION         LAST ENROUTE STOP
          MEDWAY,OH                  UNKNOWN/NOT REPORTED         UNKNOWN/NOT REPORTED
        TYPE OF ACCIDENT                                         PHASE OF OPERATION
           PROPELLER/ROTOR FAILURE: TAIL ROTOR                      IN FLIGHT: NORMAL CRUISE
           COLLISION WITH GROUND/WATER: UNCONTROLLED                IN FLIGHT: UNCONTROLLED DESCENT
        PROBABLE CAUSE(S)
           PERSONNEL - PRODUCTION-DESIGN-PERSONNEL: SUBSTANDARD QUALITY CONTROL
           ROTORCRAFT - ROTOR ASSEMBLIES: TAIL ROTOR BLADES
           MISCELLANEOUS ACTS,CONDITIONS - FATIGUE FRACTURE
           PILOT IN COMMAND - FAILED TO FOLLOW APPROVED PROCEDURES,DIRECTIVES,ETC.
        FACTOR(S)
           MISCELLANEOUS ACTS,CONDITIONS - SEPARATION IN FLIGHT
         FIRE AFTER IMPACT
        REMARKS- T/R SPINDLE MACHINED BELOW SPECS,TOOL MARKS IN MACHINED AREA.
```

## Aircraft

- Registration: [N88BD](https://openairdocs.org/deregistered/N88BD-1977-02-11), registration cancelled 1977-02-11, S/N 179 (OpenAirDocs)
- Reported make and model: ENSTROM F-28A
- Registry model: [Enstrom F-28A](https://openairdocs.org/model/enstrom-f-28a) (registry code 3300406) (OpenAirDocs)
- Category: Helicopter
- Engines: reciprocating
- Damage: Destroyed

## FAA reports on this event (1)

The FAA's own accident and incident reports, matched to the aircraft by N-number and date (OpenAirDocs).

- [Accident 19760809038909A](https://openairdocs.org/incident/19760809038909A), Aug 9, 1976: Enstrm F28A, Enon, OH, Destroyed, 1 fatal. T/r spindle machined below specs,tool marks in machined area.

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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