# NTSB LAX79DUK21: Beech S35, N7988K, Elfrida, AZ, August 27, 1979

- Type: NTSB accident investigation
- Classification: Accident · No injuries · Closed
- Date: August 27, 1979
- Place: Elfrida, AZ · ELFRIDA, AZ
- Location: 31.6792° N, 109.6869° W: Placed by OpenAirDocs: center of Elfrida, AZ, within about 6 miles (OpenAirDocs)
- Nearby events: https://openairdocs.org/map.md?lat=31.6792&lon=-109.6869&mi=10
- Phase of flight: [Landing](https://openairdocs.org/ntsb-phases/550) (OpenAirDocs' grouping)
- Highest injury: No injuries
- Injuries: 3 uninjured
- Status: Completed, report January 2, 1980
- Report: Brief approved by the director
- NTSB case key (mKey): 133674
- NTSB case page: https://web.ntsb.gov/investigations/?ntsbnumber=LAX79DUK21
- Page: https://openairdocs.org/ntsb/LAX79DUK21

## NTSB brief

```
----------------------------------------------------------------------------------------------------------------------------
 FILE    DATE          LOCATION          AIRCRAFT DATA       INJURIES       FLIGHT                        PILOT DATA
                                                               F  S M/N     PURPOSE
----------------------------------------------------------------------------------------------------------------------------
3-2813  79/8/27    ELFRIDA,AZ          BEECH S35           CR-  0  0  1  NONCOMMERCIAL             PRIVATE, AGE 30, 414
        TIME - 1500                    N7988K              PX-  0  0  2  BUSINESS                  TOTAL HOURS, 49 IN TYPE,
                                       DAMAGE-SUBSTANTIAL  OT-  0  0  0                            INSTRUMENT RATED.
        NAME OF AIRPORT - ELFRIDA
        DEPARTURE POINT             INTENDED DESTINATION
          GLENDALE,AZ                 ELFRIDA,AZ
        TYPE OF ACCIDENT                                         PHASE OF OPERATION
           GROUND-WATER LOOP-SWERVE                                 LANDING: LEVEL OFF/TOUCHDOWN
           COLLIDED WITH: TREES                                     LANDING: ROLL
        PROBABLE CAUSE(S)
           PERSONNEL - MAINTENANCE,SERVICING,INSPECTION: INADEQUATE INSPECTION OF AIRCRAFT (MAINTENANCE PERSONNEL)
           POWERPLANT - FUEL SYSTEM: SELECTOR VALVES
           MISCELLANEOUS ACTS,CONDITIONS - IMPROPERLY SECURED
           POWERPLANT - ENGINE CONTROLS: THROTTLE-POWER LEVER ASSEMBLIES
           MISCELLANEOUS ACTS,CONDITIONS - BINDING
        REMARKS- UNSECURED FUEL LINE WEDGED BETWEEN THROTTLE VLV ARM & ENG OIL SUMP.UN REDUCE PWR FRM HI-RPM.
```

## Aircraft

- Registration: [N7988K](https://openairdocs.org/aircraft/N7988K), registered now, S/N D-7492, built 1964 (OpenAirDocs)
- Reported make and model: BEECH S35
- Registry model: [Beech S35](https://openairdocs.org/model/beech-s35) (registry code 1151532) (OpenAirDocs)
- Registry engine: [Continental IO-520 series](https://openairdocs.org/engine/continental-io-520-series) (registry code 17032, reciprocating) (OpenAirDocs)
- Category: Airplane
- Engines: reciprocating
- Damage: Substantial damage
- Airport: Elfrida

## 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 19790827031169A](https://openairdocs.org/incident/19790827031169A), Aug 27, 1979: Beech S35, Elfrida, AZ, Substantial damage. An unsecured fuel line wedged between the throttle valve arm and oil sump.

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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