# NTSB ANC71IA045: Boeing 727, N789AS, Kotzebue, AK, March 11, 1971

- Type: NTSB incident investigation
- Classification: Incident · No injuries · Closed
- Date: March 11, 1971
- Place: Kotzebue, AK · KOTZEBUE, AK
- Location: 66.8868° N, 162.4917° W: Placed by OpenAirDocs: center of Kotzebue, AK, within about 6 miles (OpenAirDocs)
- Nearby events: https://openairdocs.org/map.md?lat=66.8868&lon=-162.4917&mi=10
- Phase of flight: [Approach](https://openairdocs.org/ntsb-phases/500) (OpenAirDocs' grouping)
- Highest injury: No injuries
- Injuries: 3 uninjured
- Status: Completed, report March 28, 1972
- Report: Brief approved by the director
- NTSB case key (mKey): 161311
- NTSB case page: https://web.ntsb.gov/investigations/?ntsbnumber=ANC71IA045
- Page: https://openairdocs.org/ntsb/ANC71IA045

## NTSB brief

```
----------------------------------------------------------------------------------------------------------------------------
 FILE    DATE          LOCATION          AIRCRAFT DATA       INJURIES       FLIGHT                        PILOT DATA
                                                               F  S M/N     PURPOSE
----------------------------------------------------------------------------------------------------------------------------
4-0013  71/3/11    KOTZEBUE,ALAS       BOEING 727          CR-  0  0  3  SCHED DOM PASSG SRV       CERTIFICATE UNKNOWN, AGE
        TIME - 1800                    N789AS              PX-  0  0  0                            UNK/NR, UNK/NR TOTAL
                                       DAMAGE-MINOR        OT-  0  0  0                            HOURS, UNK/NR IN TYPE,
                                                                                                   UNK/NR INSTRUMENT RATED.
        CLASSIFIED AS INCIDENT
        NAME OF AIRPORT - WEIN MEMORIAL
        OPERATOR - ALASKA AIRLINES,INC.
        DEPARTURE POINT             INTENDED DESTINATION         LAST ENROUTE STOP
          ANCHORAGE,ALAS              NOME,ALAS                    KOTZEBUE,ALAS
        TYPE OF ACCIDENT                                         PHASE OF OPERATION
           MISCELLANEOUS                                            LANDING: FINAL APPROACH
        PROBABLE CAUSE(S)
           AIRFRAME - LANDING GEAR: MAIN GEAR-SHOCK ABSORBING ASSY,STRUTS,ATTACHMENTS,ETC.
           MISCELLANEOUS ACTS,CONDITIONS - FATIGUE FRACTURE
        EMERGENCY CIRCUMSTANCES - PRECAUTIONARY LANDING ON AIRPORT
                                  SUSPECTED OR KNOWN AIRCRAFT DAMAGE
                                  UNUSUAL NOISE
        REMARKS- NR ATNDNTS,PX NOT RPRTD.LMG ACTUATOR BEAM FAILED AT OUTBD CLEVIS ATTACH LUGS.BEAM PENETRATED L WG.
```

## Aircraft

- Registration: [N789AS](https://openairdocs.org/deregistered/N789AS-2017-06-30), registration cancelled 2017-06-30, S/N 75-5911 (OpenAirDocs)
- Reported make and model: BOEING 727
- Registry model: [Boeing E75](https://openairdocs.org/model/boeing-e75) (registry code 1380120) (OpenAirDocs)
- Registry engine: [Pratt & Whitney R-985 series](https://openairdocs.org/engine/pratt-whitney-r-985-series) (registry code 52008, reciprocating) (OpenAirDocs)
- Category: Airplane
- Engines: turbo fan
- Damage: Minor damage
- Airport: Wein Memorial

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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