# NTSB UNK64X2974: Boeing YL15, N4777C, Anchorage, AK, July 22, 1964

- Type: NTSB accident investigation
- Classification: Accident · No injuries · Closed
- Date: July 22, 1964
- Place: Anchorage, AK · ANCHORAGE, AK
- Location: 61.2181° N, 149.9003° W: Placed by OpenAirDocs: center of Anchorage, AK, within about 23 miles (OpenAirDocs)
- Nearby events: https://openairdocs.org/map.md?lat=61.2181&lon=-149.9003&mi=10
- Phase of flight: [Initial climb](https://openairdocs.org/ntsb-phases/350) (OpenAirDocs' grouping)
- Highest injury: No injuries
- Injuries: 1 uninjured
- Status: Completed, report October 29, 1964
- Report: Brief approved by the director
- NTSB case key (mKey): 182774
- NTSB case page: https://web.ntsb.gov/investigations/?ntsbnumber=UNK64X2974
- Page: https://openairdocs.org/ntsb/UNK64X2974

## NTSB brief

```
----------------------------------------------------------------------------------------------------------------------------
 FILE    DATE          LOCATION          AIRCRAFT DATA       INJURIES       FLIGHT                        PILOT DATA
                                                               F  S M/N     PURPOSE
----------------------------------------------------------------------------------------------------------------------------
3-2171  64/7/22    ANCHORAGE ALAS      BOEING YL15         CR-  0  0  1  NONCOMMERCIAL             PRIVATE, AGE 39, 405
        TIME - 1930                    N4777C              PX-  0  0  0  BUSINESS                  TOTAL HOURS, 178 IN TYPE,
                                       DAMAGE-SUBSTANTIAL  OT-  0  0  0                            NOT INSTRUMENT RATED.
        TYPE OF ACCIDENT                                         PHASE OF OPERATION
           ENGINE FAILURE OR MALFUNCTION                            TAKEOFF: INITIAL CLIMB
           GEAR COLLAPSED                                           TAKEOFF: ABORTED
        PROBABLE CAUSE(S)
          PWR PLT-MOISTURE IN MAGNETO.
           PILOT IN COMMAND - INADEQUATE PREFLIGHT PREPARATION AND/OR PLANNING
        PARTIAL POWER LOSS - PARTIAL LOSS OF POWER - 1 ENGINE
        EMERGENCY CIRCUMSTANCES - FORCED LANDING OFF AIRPORT ON LAND
        REMARKS- AIRCRAFT HAD BEEN PARKED FOR WEEK IN RAIN.
```

## Aircraft

- Registration: N4777C (not matched to a registry record)
- Reported make and model: BOEING YL15
- 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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