# NTSB ANC79AA082: Boeing 737, N4907, Dillingham, AK, August 18, 1979

- Type: NTSB accident investigation
- Classification: Accident · No injuries · Closed
- Date: August 18, 1979
- Place: Dillingham, AK · DILLINGHAM, AK
- Location: 59.0397° N, 158.4575° W: Placed by OpenAirDocs: center of Dillingham, AK, within about 6 miles (OpenAirDocs)
- Nearby events: https://openairdocs.org/map.md?lat=59.0397&lon=-158.4575&mi=10
- Phase of flight: [Landing](https://openairdocs.org/ntsb-phases/550) (OpenAirDocs' grouping)
- Highest injury: No injuries
- Injuries: 4 uninjured
- Status: Completed, report September 9, 1980
- Report: Brief approved by the director
- Safety recommendations: Yes
- NTSB case key (mKey): 79504
- NTSB case page: https://web.ntsb.gov/investigations/?ntsbnumber=ANC79AA082
- Page: https://openairdocs.org/ntsb/ANC79AA082

## NTSB brief

```
----------------------------------------------------------------------------------------------------------------------------
 FILE    DATE          LOCATION          AIRCRAFT DATA       INJURIES       FLIGHT                        PILOT DATA
                                                               F  S M/N     PURPOSE
----------------------------------------------------------------------------------------------------------------------------
1-0031  79/8/18    DILLINGHAM,AK       BOEING 737          CR-  0  0  2  SCHED DOM CARGO SRV       AIRLINE TRANSPORT, AGE
        TIME - 0338                    N4907               PX-  0  0  2                            33, 5671 TOTAL HOURS, 176
                                       DAMAGE-SUBSTANTIAL  OT-  0  0  0                            IN TYPE, INSTRUMENT
                                                                                                   RATED.
        NAME OF AIRPORT - DILLINGHAM
        OPERATOR - WIEN AIR ALASKA
        DEPARTURE POINT             INTENDED DESTINATION         LAST ENROUTE STOP
          ANCHORAGE,AK                DILLINGHAM,AK                DILLINGHAM,AK
        TYPE OF ACCIDENT                                         PHASE OF OPERATION
           GEAR COLLAPSED                                           LANDING: ROLL
        PROBABLE CAUSE(S)
           AIRFRAME - LANDING GEAR: OTHER
           MISCELLANEOUS ACTS,CONDITIONS - CORRODED/CORROSION
           MISCELLANEOUS ACTS,CONDITIONS - FATIGUE FRACTURE
        REMARKS- LWR DRAG STRUT BOLT,PN 69-39473-2,FAILED.INTERGRANULAR CORROSION EMINATING FR WORN CHROME PLATING.
```

## Aircraft

- Registration: N4907 (not matched to a registry record)
- Reported make and model: BOEING 737
- Category: Airplane
- Engines: turbo fan
- Damage: Substantial damage
- Airport: Dillingham

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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