# NTSB ANC72AA029: Cessna 180, N2773X, Iliamna, AK, December 11, 1971

- Type: NTSB accident investigation
- Classification: Accident · No injuries · Closed
- Date: December 11, 1971
- Place: Iliamna, AK · ILIAMNA, AK
- Location: 59.7568° N, 154.9111° W: Placed by OpenAirDocs: center of Iliamna, AK, within about 6 miles (OpenAirDocs)
- Nearby events: https://openairdocs.org/map.md?lat=59.7568&lon=-154.9111&mi=10
- Phase of flight: [Takeoff](https://openairdocs.org/ntsb-phases/300) (OpenAirDocs' grouping)
- Highest injury: No injuries
- Injuries: 1 uninjured
- Status: Completed, report August 8, 1972
- Report: Brief approved by the director
- NTSB case key (mKey): 164856
- NTSB case page: https://web.ntsb.gov/investigations/?ntsbnumber=ANC72AA029
- Page: https://openairdocs.org/ntsb/ANC72AA029

## NTSB brief

```
----------------------------------------------------------------------------------------------------------------------------
 FILE    DATE          LOCATION          AIRCRAFT DATA       INJURIES       FLIGHT                        PILOT DATA
                                                               F  S M/N     PURPOSE
----------------------------------------------------------------------------------------------------------------------------
3-4363  71/12/11 NR.ILIAMNA,ALAS       CESSNA 180          CR-  0  0  1  COMMERCIAL                COMMERCIAL, AGE 49, 31000
        TIME - 1440                    N2773X              PX-  0  0  0  AIR TAXI-CARGO            TOTAL HOURS, 14000 IN
                                       DAMAGE-SUBSTANTIAL  OT-  0  0  0                            TYPE, NOT INSTRUMENT
                                                                                                   RATED.
        DEPARTURE POINT             INTENDED DESTINATION
         ILIAMNA,ALAS                 PORT MOLLER,ALAS
        TYPE OF ACCIDENT                                         PHASE OF OPERATION
           COLLIDED WITH: SNOWBANK                                  TAKEOFF: RUN
           GEAR COLLAPSED                                           TAKEOFF: RUN
        PROBABLE CAUSE(S)
           PILOT IN COMMAND - INADEQUATE PREFLIGHT PREPARATION AND/OR PLANNING
           PILOT IN COMMAND - INITIATED FLIGHT IN ADVERSE WEATHER CONDITIONS
           PILOT IN COMMAND - FAILED TO OBTAIN/MAINTAIN FLYING SPEED
           MISCELLANEOUS ACTS,CONDITIONS - AIRFRAME ICE
           WEATHER - SUDDEN WINDSHIFT
        FACTOR(S)
           WEATHER - FOG
           TERRAIN - HIGH OBSTRUCTIONS
           MISCELLANEOUS ACTS,CONDITIONS - OVERLOAD FAILURE
        WEATHER BRIEFING - BRIEFED BY FLIGHT SERVICE PERSONNEL, BY PHONE
        WEATHER FORECAST - FORECAST SUBSTANTIALLY CORRECT
        SKY CONDITION                                            CEILING AT ACCIDENT SITE
          UNKNOWN/NOT REPORTED                                     UNKNOWN/NOT REPORTED
        VISIBILITY AT ACCIDENT SITE                              PRECIPITATION AT ACCIDENT SITE
          UNKNOWN/NOT REPORTED                                      SNOW, FREEZING DRIZZLE
        OBSTRUCTIONS TO VISION AT ACCIDENT SITE                  TYPE OF WEATHER CONDITIONS
          FOG                                                      IFR
        TYPE OF FLIGHT PLAN
          NONE
        REMARKS- ATMTD TKOF FM 900FT LK W 1IN OF ICE & SNW ON WNGS.HIT SNW BNK OBSCRD BY SNOW AND FOG.
```

## Aircraft

- Registration: [N2773X](https://openairdocs.org/aircraft/N2773X), registered now, S/N 18051573, built 1965 (OpenAirDocs)
- Reported make and model: CESSNA 180
- Registry model: [Cessna 180H](https://openairdocs.org/model/cessna-180h) (registry code 2072618) (OpenAirDocs)
- Registry engine: [Continental O-470 series](https://openairdocs.org/engine/continental-o-470-series) (registry code 17026, reciprocating) (OpenAirDocs)
- 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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