# NTSB ANC79DA046: Cessna 180F, N2690Y, Sheep Bay, AK, April 19, 1979

- Type: NTSB incident investigation
- Classification: Incident · No injuries · Closed
- Date: April 19, 1979
- Place: Sheep Bay, AK · SHEEP BAY, AK
- Phase of flight: [Enroute](https://openairdocs.org/ntsb-phases/400) (OpenAirDocs' grouping)
- Highest injury: No injuries
- Injuries: 2 uninjured
- Status: Completed, report August 6, 1979
- Report: Brief approved by the director
- NTSB case key (mKey): 134985
- NTSB case page: https://web.ntsb.gov/investigations/?ntsbnumber=ANC79DA046
- Page: https://openairdocs.org/ntsb/ANC79DA046

## NTSB brief (aircraft 2)

```
----------------------------------------------------------------------------------------------------------------------------
 FILE    DATE          LOCATION          AIRCRAFT DATA       INJURIES       FLIGHT                        PILOT DATA
                                                               F  S M/N     PURPOSE
----------------------------------------------------------------------------------------------------------------------------
5-0018  79/4/19    SHEEP BAY,AK        PIPER PA-18         CR-  0  0  1  NONCOMMERCIAL             COMMERCIAL, AGE 41, 8500
        TIME - 0718                    N4178Z              PX-  0  0  0  OTHER                     TOTAL HOURS, UNK/NR IN
                                       DAMAGE-MINOR        OT-  0  0  1                            TYPE, NOT INSTRUMENT
                                                                                                   RATED.
        CLASSIFIED AS INCIDENT
        DEPARTURE POINT             INTENDED DESTINATION
          SHEEP BAY,AK                LOCAL
        TYPE OF ACCIDENT                                         PHASE OF OPERATION
           COLLISION WITH AIRCRAFT: BOTH IN FLIGHT                  IN FLIGHT: OTHER
        PROBABLE CAUSE(S)
           PILOT IN COMMAND - DIVERTED ATTENTION FROM OPERATION OF AIRCRAFT
           PERSONNEL - MISCELLANEOUS-PERSONNEL: PILOT OF OTHER AIRCRAFT
        FACTOR(S)
           MISCELLANEOUS ACTS,CONDITIONS - DISREGARD OF GOOD OPERATING PRACTICE
           MISCELLANEOUS ACTS,CONDITIONS - CONGESTED TRAFFIC-PATTERN
         SPECIAL DATA
          SEGMENTS OF AVIATION INVOLVED - SMALL US GEN.AV.-SMALL US GEN.AV.
          CONTROLLING AGENCY - NO CONTROL                          RADAR CTL/SURVEILLANCE - NOT UNDER RADAR CONTACT
          TRAFFIC ADVISORY ISSUED - NONE                           CONTROL ZONE/AREA - NO
          EVASIVE ACTION TAKEN - NO                                ANTI-COLLISION LIGHTS - INSTALLED,OPERATION UNKNOWN
        REMARKS- A/C FLOAT EQUIPPED.FISH SPOTTING.NO OBSERVER IN ACET,APPROX 15 OTHER ACFT IN AREA OVER BAY.
```

## NTSB brief (aircraft 1)

```
----------------------------------------------------------------------------------------------------------------------------
 FILE    DATE          LOCATION          AIRCRAFT DATA       INJURIES       FLIGHT                        PILOT DATA
                                                               F  S M/N     PURPOSE
----------------------------------------------------------------------------------------------------------------------------
5-0018  79/4/19    SHEEP BAY,AK        CESSNA 180F         CR-  0  0  1  NONCOMMERCIAL             PRIVATE, AGE 37, 646
        TIME - 0718                    N2690Y              PX-  0  0  0  OTHER                     TOTAL HOURS, ALL IN TYPE,
                                       DAMAGE-MINOR        OT-  0  0  1                            NOT INSTRUMENT RATED.
        CLASSIFIED AS INCIDENT
        DEPARTURE POINT             INTENDED DESTINATION
          OLSEN BAY,AK.               SHEEP BAY,AK
        TYPE OF ACCIDENT                                         PHASE OF OPERATION
           COLLISION WITH AIRCRAFT: BOTH IN FLIGHT                  IN FLIGHT: OTHER
        PROBABLE CAUSE(S)
           PILOT IN COMMAND - DIVERTED ATTENTION FROM OPERATION OF AIRCRAFT
           PILOT IN COMMAND - FAILED TO SEE AND AVOID OTHER AIRCRAFT
        FACTOR(S)
           MISCELLANEOUS ACTS,CONDITIONS - DISREGARD OF GOOD OPERATING PRACTICE
           MISCELLANEOUS ACTS,CONDITIONS - CONGESTED TRAFFIC-PATTERN
         SPECIAL DATA
          SEGMENTS OF AVIATION INVOLVED - SMALL US GEN.AV.-SMALL US GEN.AV.
          CONTROLLING AGENCY - NO CONTROL                          RADAR CTL/SURVEILLANCE - NOT UNDER RADAR CONTACT
          TRAFFIC ADVISORY ISSUED - NONE                           CONTROL ZONE/AREA - NO
          EVASIVE ACTION TAKEN - NO                                ANTI-COLLISION LIGHTS - INSTALLED,OPERATION UNKNOWN
        REMARKS- FISH SPOTTING.A/C FLOAT EQUIPPED.NO OBSERVER IN ACFT,APPROX 15 OTHER ACFT IN AREA OVER BAY.
```

## Aircraft 1

- Registration: [N2690Y](https://openairdocs.org/aircraft/N2690Y), registered now, S/N 18051190 (OpenAirDocs)
- Reported make and model: CESSNA 180F
- Registry model: [Cessna 180F](https://openairdocs.org/model/cessna-180f) (registry code 2072614) (OpenAirDocs)
- Registry engine: [Continental O-470 series](https://openairdocs.org/engine/continental-o-470-series) (registry code 17026, reciprocating) (OpenAirDocs)
- Category: Airplane
- Engines: reciprocating
- Damage: Minor damage

## Aircraft 2

- Registration: [N4178Z](https://openairdocs.org/deregistered/N4178Z-2015-05-19), registration cancelled 2015-05-19, S/N 18-8358, built 1966 (OpenAirDocs)
- Reported make and model: PIPER PA-18
- Registry model: [Piper PA-18-150](https://openairdocs.org/model/piper-pa-18-150) (registry code 7101828) (OpenAirDocs)
- Registry engine: [Lycoming 0-320 series](https://openairdocs.org/engine/lycoming-0-320-series) (registry code 41508, reciprocating) (OpenAirDocs)
- Category: Airplane
- Engines: reciprocating
- Damage: Minor damage

## FAA reports on this event (2)

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

- [Accident 19790419024111A](https://openairdocs.org/incident/19790419024111A), Apr 19, 1979: Cessna 180F, Sheep Bay, AK, Minor damage. N2690Y and N4178Z collided while spotting fish for fishing boats.
- [Accident 19790419024112A](https://openairdocs.org/incident/19790419024112A), Apr 19, 1979: Piper PA18, Sheep Bay, AK, Minor damage. N4178Z and N2690Y collided while spotting fish for fishing boats.

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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