# NTSB ANC80DA037: Grumman G-21, N87U, Karluk, AK, March 26, 1980

- Type: NTSB accident investigation
- Classification: Accident · No injuries · Closed
- Date: March 26, 1980
- Place: Karluk, AK · KARLUK, AK
- Location: 57.5719° N, 154.4556° W: Placed by OpenAirDocs: center of Karluk, AK, within about 6 miles (OpenAirDocs)
- Nearby events: https://openairdocs.org/map.md?lat=57.5719&lon=-154.4556&mi=10
- Phase of flight: [Taxi](https://openairdocs.org/ntsb-phases/250) (OpenAirDocs' grouping)
- Highest injury: No injuries
- Injuries: 4 uninjured
- Status: Completed, report May 15, 1980
- Report: Brief approved by the director
- NTSB case key (mKey): 131590
- NTSB case page: https://web.ntsb.gov/investigations/?ntsbnumber=ANC80DA037
- Page: https://openairdocs.org/ntsb/ANC80DA037

## NTSB brief

```
----------------------------------------------------------------------------------------------------------------------------
 FILE    DATE          LOCATION          AIRCRAFT DATA       INJURIES       FLIGHT                        PILOT DATA
                                                               F  S M/N     PURPOSE
----------------------------------------------------------------------------------------------------------------------------
3-3757  80/3/26  NR.KARLUK,AK          GRUMMAN G-21        CR-  0  0  1  COMMERCIAL                AIRLINE TRANSPORT, AGE
        TIME - 1210                    N87U                PX-  0  0  3  COMMUTER AIR CARRIER      41, 7940 TOTAL HOURS, 485
                                       DAMAGE-SUBSTANTIAL  OT-  0  0  0  AIR TAXI-PASSG S-D        IN TYPE, INSTRUMENT
                                                                                                   RATED.
        NAME OF AIRPORT - KARLUK SEAPLANE
        DEPARTURE POINT             INTENDED DESTINATION         LAST ENROUTE STOP
          KODIAK,AK                   KODIAK,AK                   KARLUK,AK
        TYPE OF ACCIDENT                                         PHASE OF OPERATION
           GROUND-WATER LOOP-SWERVE                                 TAXI: FROM LANDING
           COLLIDED WITH: OBJECT                                    TAXI: FROM LANDING
        PROBABLE CAUSE(S)
           PILOT IN COMMAND - IMPROPER OPERATION OF POWERPLANT & POWERPLANT CONTROLS
        REMARKS- WHILE STEP TAXING ON KARLUK LAGOON ACFT SWERUED  UP ONTO BEACH.
```

## Aircraft

- Registration: [N87U](https://openairdocs.org/deregistered/N87U-2023-06-10), registration cancelled 2023-06-10, S/N B126 (OpenAirDocs)
- Reported make and model: GRUMMAN G-21
- Registry model: [Grumman G-21A](https://openairdocs.org/model/grumman-g-21a) (registry code 3951204) (OpenAirDocs)
- Registry engine: [Pratt & Whitney R-985 series](https://openairdocs.org/engine/pratt-whitney-r-985-series) (registry code 52008, reciprocating) (OpenAirDocs)
- Category: Airplane
- Engines: reciprocating
- Damage: Substantial damage
- Airport: Karluk Seaplane

## 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 19800326028199A](https://openairdocs.org/incident/19800326028199A), Mar 26, 1980: Gruman G21A, Karluk, AK, Substantial damage. Engines failed to respond evenly on step taxi after landing. Swerved onto beach. Fuel grade used invites carb ice.

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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