# NTSB DEN79FA044: Cessna U206, N4424Q, Milford, UT, June 17, 1979

- Type: NTSB accident investigation
- Classification: Accident · No injuries · Closed
- Date: June 17, 1979
- Place: Milford, UT · MILFORD, UT
- Location: 38.3945° N, 113.0123° W: Placed by OpenAirDocs: center of Milford, UT, within about 6 miles (OpenAirDocs)
- Nearby events: https://openairdocs.org/map.md?lat=38.3945&lon=-113.0123&mi=10
- Phase of flight: [Enroute](https://openairdocs.org/ntsb-phases/400) (OpenAirDocs' grouping)
- Highest injury: No injuries
- Injuries: 4 uninjured
- Status: Completed, report May 29, 1980
- Report: Brief approved by the director
- NTSB case key (mKey): 135553
- NTSB case page: https://web.ntsb.gov/investigations/?ntsbnumber=DEN79FA044
- Page: https://openairdocs.org/ntsb/DEN79FA044

## NTSB brief

```
----------------------------------------------------------------------------------------------------------------------------
 FILE    DATE          LOCATION          AIRCRAFT DATA       INJURIES       FLIGHT                        PILOT DATA
                                                               F  S M/N     PURPOSE
----------------------------------------------------------------------------------------------------------------------------
3-3919  79/6/17  NR.MILFORD,UT         CESSNA U206         CR-  0  0  1  COMMERCIAL                ATP,FLIGHT INSTR., AGE
        TIME - 1000                    N4424Q              PX-  0  0  3  MAPPING/PHOTO             38, 6600 TOTAL HOURS, 800
                                       DAMAGE-DESTROYED    OT-  0  0  0                            IN TYPE, INSTRUMENT
                                                                                                   RATED.
        DEPARTURE POINT             INTENDED DESTINATION
          CEDAR CITY,UT              MILFORD,UT
        TYPE OF ACCIDENT                                         PHASE OF OPERATION
           FIRE OR EXPLOSION: IN FLIGHT                             IN FLIGHT: NORMAL CRUISE
           ENGINE FAILURE OR MALFUNCTION                            IN FLIGHT: DESCENDING
        PROBABLE CAUSE(S)
           SYSTEMS - ELECTRICAL SYSTEM: GENERATORS/ALTERNATORS
           SYSTEMS - ELECTRICAL SYSTEM: RELAYS AND WIRING
           MISCELLANEOUS ACTS,CONDITIONS - DISCONNECTED
           MISCELLANEOUS ACTS,CONDITIONS - ARCING
           MISCELLANEOUS ACTS,CONDITIONS - FIRE IN ENGINE
        FACTOR(S)
           POWERPLANT - IGNITION SYSTEM: IGNITION HARNESS,SHIELDING
           MISCELLANEOUS ACTS,CONDITIONS - BURNED
         FIRE AFTER IMPACT
        REMARKS- AFTER GND WIRE BCM DISCNCTD,ALTERNATOR ARCED TO FUEL VENT LN.IGNITION LNS BURNED.ACFT LNDD/BURNED.
```

## Aircraft

- Registration: [N4424Q](https://openairdocs.org/deregistered/N4424Q-1981-12-23), registration cancelled 1981-12-23, S/N U20603049, built 1975 (OpenAirDocs)
- Reported make and model: CESSNA U206
- Registry model: [Cessna TU206F](https://openairdocs.org/model/cessna-tu206f) (registry code 2073353) (OpenAirDocs)
- Registry engine: [Continental TSIO-520-C](https://openairdocs.org/engine/continental-tsio-520-c) (registry code 17251, reciprocating) (OpenAirDocs)
- Category: Airplane
- 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 19790617041309A](https://openairdocs.org/incident/19790617041309A), Jun 17, 1979: Cessna 206CESSNA, Milford, UT, Destroyed. Ground lead came off alternator. Arcing caused fuel hose to rupture & fuel fire. Landed safely. Airplane burned.

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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