# NTSB ANC71AA020: Piper PA-18, N4122Z, Fairbanks, AK, September 25, 1970

- Type: NTSB accident investigation
- Classification: Accident · Minor injuries · Closed
- Date: September 25, 1970
- Place: Fairbanks, AK · FAIRBANKS, AK
- Location: 64.8378° N, 147.7164° W: Placed by OpenAirDocs: center of Fairbanks, AK, within about 6 miles (OpenAirDocs)
- Nearby events: https://openairdocs.org/map.md?lat=64.8378&lon=-147.7164&mi=10
- Phase of flight: [Enroute](https://openairdocs.org/ntsb-phases/400) (OpenAirDocs' grouping)
- Highest injury: Minor injuries
- Injuries: 1 minor, 1 uninjured
- Status: Completed, report February 9, 1971
- Report: Brief approved by the director
- NTSB case key (mKey): 167794
- NTSB case page: https://web.ntsb.gov/investigations/?ntsbnumber=ANC71AA020
- Page: https://openairdocs.org/ntsb/ANC71AA020

## NTSB brief

```
----------------------------------------------------------------------------------------------------------------------------
 FILE    DATE          LOCATION          AIRCRAFT DATA       INJURIES       FLIGHT                        PILOT DATA
                                                               F  S M/N     PURPOSE
----------------------------------------------------------------------------------------------------------------------------
3-1722  70/9/25  NR.FAIRBANKS,ALAS     PIPER PA-18         CR-  0  0  1  COMMERCIAL                COMMERCIAL, FL.INSTR.,
        TIME - 0830                    N4122Z              PX-  0  0  1  AIR TAXI-PASSG            AGE 30, 1860 TOTAL HOURS,
                                       DAMAGE-SUBSTANTIAL  OT-  0  0  0                            402 IN TYPE, INSTRUMENT
                                                                                                   RATED.
        DEPARTURE POINT             INTENDED DESTINATION
          PORTAGE STRIP,ALAS          LOCAL
        TYPE OF ACCIDENT                                         PHASE OF OPERATION
           ENGINE FAILURE OR MALFUNCTION                            IN FLIGHT: OTHER
           GEAR COLLAPSED                                           LANDING: ROLL
        PROBABLE CAUSE(S)
           POWERPLANT - MISCELLANEOUS: POWERPLANT FAILURE FOR UNDETERMINED REASONS
           TERRAIN - ROUGH/UNEVEN
        FACTOR(S)
           MISCELLANEOUS ACTS,CONDITIONS - OVERLOAD FAILURE
        PARTIAL POWER LOSS - PARTIAL LOSS OF POWER - 1 ENGINE
        EMERGENCY CIRCUMSTANCES - FORCED LANDING OFF AIRPORT ON LAND
        REMARKS- CONDUCTING DALL SHEEP SURVEY FOR STATE OF ALASKA. GR STRUCK BOULDER IN CREEK BED.
```

## Aircraft

- Registration: N4122Z (not matched to a registry record)
- Reported make and model: PIPER PA-18
- Category: Airplane
- Engines: reciprocating
- Damage: Substantial damage

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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