# NTSB ANC78DAA36: Cessna TU206D, N111SW, Mankomen Lk, AK, August 9, 1978

- Type: NTSB accident investigation
- Classification: Accident · No injuries · Closed
- Date: August 9, 1978
- Place: Mankomen Lk, AK · MANKOMEN LK, AK
- Phase of flight: [Initial climb](https://openairdocs.org/ntsb-phases/350) (OpenAirDocs' grouping)
- Highest injury: No injuries
- Injuries: 4 uninjured
- Status: Completed, report November 16, 1978
- Report: Brief approved by the director
- NTSB case key (mKey): 201222
- NTSB case page: https://web.ntsb.gov/investigations/?ntsbnumber=ANC78DAA36
- Page: https://openairdocs.org/ntsb/ANC78DAA36-201222

## NTSB brief

```
----------------------------------------------------------------------------------------------------------------------------
 FILE    DATE          LOCATION          AIRCRAFT DATA       INJURIES       FLIGHT                        PILOT DATA
                                                               F  S M/N     PURPOSE
----------------------------------------------------------------------------------------------------------------------------
3-3045   78/8/9    MANKOMEN LK,AK      CESSNA TU206D       CR-  0  0  1  NONCOMMERCIAL             PRIVATE, AGE 43, 534
        TIME - 1330                    N111SW              PX-  0  0  3  PLEASURE/PERSONAL TRANSP  TOTAL HOURS, 21 IN TYPE,
                                       DAMAGE-SUBSTANTIAL  OT-  0  0  0                            NOT INSTRUMENT RATED.
        DEPARTURE POINT             INTENDED DESTINATION         LAST ENROUTE STOP
          CHENA RIVER,AK              SHEEP LK,AK                  MANKOMEN LK,AK
        TYPE OF ACCIDENT                                         PHASE OF OPERATION
           COLLISION WITH GROUND/WATER: CONTROLLED                  TAKEOFF: INITIAL CLIMB
        PROBABLE CAUSE(S)
           MISCELLANEOUS - UNDETERMINED
        FACTOR(S)
           PILOT IN COMMAND - ATTEMPTED OPERATION W/KNOWN DEFICIENCIES IN EQUIPMENT
           MISCELLANEOUS ACTS,CONDITIONS - AIRCRAFT CAME TO REST IN WATER
        REMARKS- A/C FLOAT EQUIPPED.FLAP CB POPPED BFR FLT,RESET.ACFT NOT RCVD.
```

## Aircraft

- Registration: [N111SW](https://openairdocs.org/deregistered/N111SW-2009-06-25), registration cancelled 2009-06-25, S/N U206-1367, built 1969 (OpenAirDocs)
- Reported make and model: CESSNA TU206D
- Registry model: [Cessna TU206D](https://openairdocs.org/model/cessna-tu206d) (registry code 2073344) (OpenAirDocs)
- Registry engine: [Continental GTSIO-520-C](https://openairdocs.org/engine/continental-gtsio-520-c) (registry code 17035, reciprocating) (OpenAirDocs)
- Category: Airplane
- Engines: reciprocating
- Damage: Substantial damage

## FAA reports on this event (1)

The FAA's own accident and incident reports, matched to the aircraft by N-number and date (OpenAirDocs).

- [Accident 19780809027379A](https://openairdocs.org/incident/19780809027379A), Aug 9, 1978: Cessna TU206D, Mankomen Lk, AK, Substantial damage. A/c float equipped. Flap cb popped bfr flt,reset. Acft not rcvd.

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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