# NTSB ANC69A0036: Beech D50C, N4031H, Umiat, AK, January 17, 1969

- Type: NTSB accident investigation
- Classification: Accident · No injuries · Closed
- Date: January 17, 1969
- Place: Umiat, AK · UMIAT, AK
- Location: 69.3669° N, 152.1442° W: Placed by OpenAirDocs: center of Umiat, AK, within about 6 miles (OpenAirDocs)
- Nearby events: https://openairdocs.org/map.md?lat=69.3669&lon=-152.1442&mi=10
- Phase of flight: [Initial climb](https://openairdocs.org/ntsb-phases/350) (OpenAirDocs' grouping)
- Highest injury: No injuries
- Injuries: 3 uninjured
- Status: Completed, report March 19, 1969
- Report: Brief approved by the director
- NTSB case key (mKey): 191488
- NTSB case page: https://web.ntsb.gov/investigations/?ntsbnumber=ANC69A0036
- Page: https://openairdocs.org/ntsb/ANC69A0036

## NTSB brief

```
----------------------------------------------------------------------------------------------------------------------------
 FILE    DATE          LOCATION          AIRCRAFT DATA       INJURIES       FLIGHT                        PILOT DATA
                                                               F  S M/N     PURPOSE
----------------------------------------------------------------------------------------------------------------------------
3-0022  69/1/17    UMIAT,ALAS          BEECH D50C          CR-  0  0  1  COMMERCIAL                ATP,FLIGHT INSTR., AGE
        TIME - 0900                    N4031H              PX-  0  0  2  AIR TAXI-PASSG            42, 11801 TOTAL HOURS,
                                       DAMAGE-SUBSTANTIAL  OT-  0  0  0                            259 IN TYPE, INSTRUMENT
                                                                                                   RATED.
        NAME OF AIRPORT - MOBIL KAPARUK
        TYPE OF ACCIDENT                                         PHASE OF OPERATION
           STALL: MUSH                                              TAKEOFF: INITIAL CLIMB
        PROBABLE CAUSE(S)
           PILOT IN COMMAND - INADEQUATE PREFLIGHT PREPARATION AND/OR PLANNING
           MISCELLANEOUS ACTS,CONDITIONS - AIRFRAME ICE
        FACTOR(S)
           WEATHER - ICING CONDITIONS-INCLUDES SLEET,FREEZING RAIN,ETC.
           AIRPORTS/AIRWAYS/FACILITIES - AIRPORT CONDITIONS: OTHER
        WEATHER BRIEFING - NO RECORD OF BRIEFING RECEIVED
        WEATHER FORECAST - UNKNOWN/NOT REPORTED
        SKY CONDITION                                            CEILING AT ACCIDENT SITE
          UNKNOWN/NOT REPORTED                                      700
        VISIBILITY AT ACCIDENT SITE                              PRECIPITATION AT ACCIDENT SITE
          1 MILE OR LESS                                           NONE
        OBSTRUCTIONS TO VISION AT ACCIDENT SITE                  WIND DIRECTION-DEGREES
          ICE FOG                                                  240
        WIND VELOCITY-KNOTS                                      TYPE OF WEATHER CONDITIONS
           3                                                       IFR
        TYPE OF FLIGHT PLAN
          NONE
        REMARKS- PLT DID NOT REMOVE ALL OF FROST FROM WINGS. ACFT NEAR MAX GROSS WT. ICE STRIP,HARD PACKED SNOW.
```

## Aircraft

- Registration: [N4031H](https://openairdocs.org/deregistered/N4031H-1976-05-21), registration cancelled 1976-05-21, S/N DH-287, built 1960 (OpenAirDocs)
- Reported make and model: BEECH D50C
- Registry model: [Beech D50C](https://openairdocs.org/model/beech-d50c) (registry code 1152520) (OpenAirDocs)
- Category: Airplane
- Engines: reciprocating
- Damage: Substantial damage
- Airport: Mobil Kaparuk

## Other investigations on N4031H (1)

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.

- [NTSB ANC75AA066](https://openairdocs.org/ntsb/ANC75AA066), Mar 16, 1975: Beech D50C (N4031H), Nondalton, AK, 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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