# NTSB LAX81FVG04: Enstrom F-28A, N9268, Elk Grove, CA, November 7, 1981

- Type: NTSB accident investigation
- Classification: Accident · No injuries · Closed
- Date: November 7, 1981
- Place: Elk Grove, CA · ELK GROVE, CA
- Location: 38.4088° N, 121.3716° W: Placed by OpenAirDocs: center of Elk Grove, CA, within about 6 miles (OpenAirDocs)
- Nearby events: https://openairdocs.org/map.md?lat=38.4088&lon=-121.3716&mi=10
- Phase of flight: [Landing](https://openairdocs.org/ntsb-phases/550) (OpenAirDocs' grouping)
- Highest injury: No injuries
- Injuries: 1 uninjured
- Status: Completed, report January 14, 1982
- Report: Brief approved by the director
- NTSB case key (mKey): 123528
- NTSB case page: https://web.ntsb.gov/investigations/?ntsbnumber=LAX81FVG04
- Page: https://openairdocs.org/ntsb/LAX81FVG04-123528

## NTSB brief

```
----------------------------------------------------------------------------------------------------------------------------
 FILE    DATE          LOCATION          AIRCRAFT DATA       INJURIES       FLIGHT                        PILOT DATA
                                                               F  S M/N     PURPOSE
----------------------------------------------------------------------------------------------------------------------------
3-3014   81/11/7   ELK GROVE,CA        ENSTROM F-28A       CR-  0  0  1  NONCOMMERCIAL             AIRLINE TRANSPORT, AGE
        TIME - 1600                    N9268               PX-  0  0  0  PLEASURE/PERSONAL TRANSP  58, 5999 TOTAL HOURS, 414
                                       DAMAGE-SUBSTANTIAL  OT-  0  0  0                            IN TYPE, INSTRUMENT
                                                                                                   RATED.
        DEPARTURE POINT             INTENDED DESTINATION
          FAIR OAKS,CA                ELK GROVE,CA
        TYPE OF ACCIDENT                                         PHASE OF OPERATION
           HARD LANDING                                             LANDING: POWER-OFF AUTOROTATIVE LANDING
        PROBABLE CAUSE(S)
           PERSONNEL - MAINTENANCE,SERVICING,INSPECTION: INADEQUATE MAINTENANCE AND INSPECTION
           ROTORCRAFT - TRANSMISSION ROTOR DRIVE SYSTEM: CLUTCH ASSEMBLY
           MISCELLANEOUS ACTS,CONDITIONS - IMPROPER ALIGNMENT/ADJUSTMENT
        FACTOR(S)
           TERRAIN - HIGH OBSTRUCTIONS
           MISCELLANEOUS - EVASIVE MANEUVER TO AVOID COLLISION
        EMERGENCY CIRCUMSTANCES - FORCED LANDING OFF AIRPORT ON LAND
        REMARKS- MAIN ROTOR CLUTCH DISENGAGED,LNDD HARD AFT MNVRG TO AVOID A FENCE.CLUTCH WOULD NOT LOCK OVRCTR.
```

## Aircraft

- Registration: [N9268](https://openairdocs.org/deregistered/N9268-2018-01-29), registration cancelled 2018-01-29, S/N 227, built 1974 (OpenAirDocs)
- Reported make and model: ENSTROM F-28A
- Registry model: [Enstrom F-28A](https://openairdocs.org/model/enstrom-f-28a) (registry code 3300406) (OpenAirDocs)
- Registry engine: [Lycoming I0-360-B1E](https://openairdocs.org/engine/lycoming-i0-360-b1e) (registry code 41559, reciprocating) (OpenAirDocs)
- Category: Helicopter
- Engines: reciprocating
- Damage: Substantial damage

## 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 19811107072309A](https://openairdocs.org/incident/19811107072309A), Nov 7, 1981: Enstrm F28A, Elk Grove, CA, Substantial damage. Loud bang on approach to land. RPM lost. Hard landing chopped tail boom. Main rotor clutch not correctly rigged.

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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