# NTSB ANC72DAG02: Beech B23, N4010T, Cooper Lndg, AK, June 28, 1971

- Type: NTSB accident investigation
- Classification: Accident · No injuries · Closed
- Date: June 28, 1971
- Place: Cooper Lndg, AK · COOPER LNDG, AK
- Phase of flight: [Enroute](https://openairdocs.org/ntsb-phases/400) (OpenAirDocs' grouping)
- Highest injury: No injuries
- Injuries: 1 uninjured
- Status: Completed, report March 9, 1972
- Report: Brief approved by the director
- NTSB case key (mKey): 162307
- NTSB case page: https://web.ntsb.gov/investigations/?ntsbnumber=ANC72DAG02
- Page: https://openairdocs.org/ntsb/ANC72DAG02

## NTSB brief

```
----------------------------------------------------------------------------------------------------------------------------
 FILE    DATE          LOCATION          AIRCRAFT DATA       INJURIES       FLIGHT                        PILOT DATA
                                                               F  S M/N     PURPOSE
----------------------------------------------------------------------------------------------------------------------------
3-2602  71/6/28    COOPER LNDG,ALAS    BEECH B23           CR-  0  0  1  INSTRUCTIONAL             PRIVATE, AGE 29, 66 TOTAL
        TIME - 1340                    N4010T              PX-  0  0  0  TRAINING                  HOURS, 4 IN TYPE, NOT
                                       DAMAGE-SUBSTANTIAL  OT-  0  0  0                            INSTRUMENT RATED.
        DEPARTURE POINT             INTENDED DESTINATION
          ANCHORAGE,ALAS              HOMER,ALAS
        TYPE OF ACCIDENT                                         PHASE OF OPERATION
           COLLISION WITH GROUND/WATER: CONTROLLED                  IN FLIGHT: OTHER
        PROBABLE CAUSE(S)
           PILOT IN COMMAND - DIVERTED ATTENTION FROM OPERATION OF AIRCRAFT
        FACTOR(S)
           PILOT IN COMMAND - BECAME LOST/DISORIENTED
        REMARKS- ATMTG TO LOCATE PSN USING VOR,CHARTS NOT ON BOARD.SAW MOUNTAIN JUST PRIOR TO HITTING 45DEG UPSLOPE
```

## Aircraft

- Registration: [N4010T](https://openairdocs.org/deregistered/N4010T-1972-04-29), registration cancelled 1972-04-29, S/N M-1117 (OpenAirDocs)
- Reported make and model: BEECH B23
- Registry model: [Beech B23](https://openairdocs.org/model/beech-b23) (registry code 1151240) (OpenAirDocs)
- Category: Airplane
- Engines: reciprocating
- Damage: Substantial damage

## Other investigations on N4010T (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 ANC71DAG49](https://openairdocs.org/ntsb/ANC71DAG49), Nov 24, 1970: Beech B23 (N4010T), Palmer, 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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