# NTSB SEA71DWD05: Kaman HUK-1, N9847, Sedro Wooley, WA, July 16, 1970

- Type: NTSB accident investigation
- Classification: Accident · No injuries · Closed
- Date: July 16, 1970
- Place: Sedro Wooley, WA · SEDRO WOOLEY, WA
- Phase of flight: [Taxi](https://openairdocs.org/ntsb-phases/250) (OpenAirDocs' grouping)
- Highest injury: No injuries
- Injuries: 3 uninjured
- Status: Completed, report May 19, 1971
- Report: Brief approved by the director
- NTSB case key (mKey): 108965
- NTSB case page: https://web.ntsb.gov/investigations/?ntsbnumber=SEA71DWD05
- Page: https://openairdocs.org/ntsb/SEA71DWD05

## NTSB brief

```
----------------------------------------------------------------------------------------------------------------------------
 FILE    DATE          LOCATION          AIRCRAFT DATA       INJURIES       FLIGHT                        PILOT DATA
                                                               F  S M/N     PURPOSE
----------------------------------------------------------------------------------------------------------------------------
3-3037  70/7/16  NR.SEDRO WOOLEY,WASH  KAMAN HUK-1         CR-  0  0  1  COMMERCIAL                ATP,FLIGHT INSTR., AGE
        TIME - 0755                    N9847               PX-  0  0  2  ASSOC FIRE CTL ACTIVITY   33, 6353 TOTAL HOURS, 24
                                       DAMAGE-SUBSTANTIAL  OT-  0  0  0                            IN TYPE, INSTRUMENT
                                                                                                   RATED.
        DEPARTURE POINT             INTENDED DESTINATION
         SEDRO WOOLEY,WASH            FOREST FIRE AREA
        TYPE OF ACCIDENT                                         PHASE OF OPERATION
           ROLL OVER                                                TAXI: GROUND TAXI, OTHER
        PROBABLE CAUSE(S)
           TERRAIN - OTHER
        REMARKS- LNDD ON LOGGING ROAD. SURFACE OVR ERODED AREA COLLAPSED UNDER ACFT WEIGHT
```

## Aircraft

- Registration: [N9847](https://openairdocs.org/deregistered/N9847-2017-02-13), registration cancelled 2017-02-13, S/N 146308, built 1958 (OpenAirDocs)
- Reported make and model: KAMAN HUK-1
- Registry model: [Kaman HUK-1](https://openairdocs.org/model/kaman-huk-1) (registry code 4800805) (OpenAirDocs)
- Registry engine: [Pratt & Whitney R1340 series](https://openairdocs.org/engine/pratt-whitney-r1340-series) (registry code 52016, reciprocating) (OpenAirDocs)
- Category: Helicopter
- Engines: reciprocating
- Damage: Substantial damage

## Other investigations on N9847 (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 SEA72FYI04](https://openairdocs.org/ntsb/SEA72FYI04), Aug 7, 1971: Kaman HUK-1 (N9847), Central Pt, OR, 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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