# NTSB ANC66A0009: Aero Comm 680, N6305U, Lk.Tustumena, AK, September 4, 1965

- Type: NTSB accident investigation
- Classification: Accident · Fatal · Closed
- Date: September 4, 1965
- Place: Lk.Tustumena, AK · LK.TUSTUMENA, AK
- Phase of flight: [Enroute](https://openairdocs.org/ntsb-phases/400) (OpenAirDocs' grouping)
- Highest injury: Fatal
- Injuries: 4 fatal, 1 minor
- Status: Completed, report February 24, 1966
- Report: Brief approved by the director
- NTSB case key (mKey): 176290
- NTSB case page: https://web.ntsb.gov/investigations/?ntsbnumber=ANC66A0009
- Page: https://openairdocs.org/ntsb/ANC66A0009

## NTSB brief

```
----------------------------------------------------------------------------------------------------------------------------
 FILE    DATE          LOCATION          AIRCRAFT DATA       INJURIES       FLIGHT                        PILOT DATA
                                                               F  S M/N     PURPOSE
----------------------------------------------------------------------------------------------------------------------------
1-0057   65/9/4    LK.TUSTUMENA,ALAS   AERO COMM 680       CR-  1  0  0  SCHED DOM PASSG SRV       COMMERCIAL, AGE 29, 5184
        TIME - 0940                    N6305U              PX-  3  0  1                            TOTAL HOURS, 403 IN TYPE,
                                       DAMAGE-DESTROYED    OT-  0  0  0                            INSTRUMENT RATED.
        OPERATOR - CORDOVA AIRLINES,INC.
        TYPE OF ACCIDENT                                         PHASE OF OPERATION
           COLLISION WITH GROUND/WATER: CONTROLLED                  IN FLIGHT: DESCENDING
        PROBABLE CAUSE(S)
           PILOT IN COMMAND - MISJUDGED DISTANCE AND ALTITUDE
           PILOT IN COMMAND - CONTINUED VFR FLIGHT INTO ADVERSE WEATHER CONDITIONS
           TERRAIN - GLASSY WATER
        FACTOR(S)
           WEATHER - FOG
           WEATHER - LOW CEILING
           MISCELLANEOUS ACTS,CONDITIONS - AIRCRAFT CAME TO REST IN WATER
        WEATHER BRIEFING - BRIEFED BY FLIGHT SERVICE PERSONNEL, BY PHONE
        WEATHER FORECAST - FORECAST SUBSTANTIALLY CORRECT
        SKY CONDITION                                            CEILING AT ACCIDENT SITE
          OVERCAST                                                  300
        VISIBILITY AT ACCIDENT SITE                              PRECIPITATION AT ACCIDENT SITE
          1 MILE OR LESS                                           NONE
        OBSTRUCTIONS TO VISION AT ACCIDENT SITE                  WIND VELOCITY-KNOTS
          FOG                                                      CALM
        TYPE OF WEATHER CONDITIONS                               TYPE OF FLIGHT PLAN
          VFR                                                      NONE
        REMARKS- N6305U SANK IN LAKE NOT RECOVERED.
```

## Aircraft

- Registration: [N6305U](https://openairdocs.org/deregistered/N6305U-1968-07-25), registration cancelled 1968-07-25, S/N 1389-49 (OpenAirDocs)
- Reported make and model: AERO COMM 680
- Registry model: [Aero Commander 680FL](https://openairdocs.org/model/aero-commander-680fl) (registry code 0141608) (OpenAirDocs)
- Category: Airplane
- Engines: reciprocating
- Damage: Destroyed

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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