# NTSB SEA75FYE24: Bell 205-A1, N59436, Marblemount, WA, November 4, 1974

- Type: NTSB accident investigation
- Classification: Accident · Fatal · Closed
- Date: November 4, 1974
- Place: Marblemount, WA · MARBLEMOUNT, WA
- Location: 48.5418° N, 121.4396° W: Placed by OpenAirDocs: center of Marblemount, WA, within about 6 miles (OpenAirDocs)
- Nearby events: https://openairdocs.org/map.md?lat=48.5418&lon=-121.4396&mi=10
- Phase of flight: [Maneuvering](https://openairdocs.org/ntsb-phases/450) (OpenAirDocs' grouping)
- Highest injury: Fatal
- Injuries: 1 fatal
- Status: Completed, report March 26, 1975
- Report: Brief approved by the director
- NTSB case key (mKey): 146413
- NTSB case page: https://web.ntsb.gov/investigations/?ntsbnumber=SEA75FYE24
- Page: https://openairdocs.org/ntsb/SEA75FYE24

## NTSB brief

```
----------------------------------------------------------------------------------------------------------------------------
 FILE    DATE          LOCATION          AIRCRAFT DATA       INJURIES       FLIGHT                        PILOT DATA
                                                               F  S M/N     PURPOSE
----------------------------------------------------------------------------------------------------------------------------
3-4345   74/11/4 NR.MARBLEMOUNT,WASH   BELL 205-A1         CR-  1  0  0  COMMERCIAL                COMMERCIAL, AGE 40, 5182
        TIME - 1210                    N59436              PX-  0  0  0  OTHER                     TOTAL HOURS, 22 IN TYPE,
                                       DAMAGE-DESTROYED    OT-  0  0  0                            NOT INSTRUMENT RATED.
        DEPARTURE POINT             INTENDED DESTINATION
         MARBLEMOUNT,WASH             LOCAL
        TYPE OF ACCIDENT                                         PHASE OF OPERATION
           COLLIDED WITH: TREES                                     IN FLIGHT: HOVERING
        PROBABLE CAUSE(S)
           PILOT IN COMMAND - MISJUDGED CLEARANCE
        FACTOR(S)
           ROTORCRAFT - ROTOR ASSEMBLIES: TAIL ROTOR BLADES
           MISCELLANEOUS ACTS,CONDITIONS - SEPARATION IN FLIGHT
           TERRAIN - HIGH OBSTRUCTIONS
        REMARKS- LOGGING OPN,EXTERNAL LOAD.T/R HIT TREE,SEPARATED.CRASHED ON 60DEG SLOPE.
```

## Aircraft

- Registration: [N59436](https://openairdocs.org/deregistered/N59436-1974-12-20), registration cancelled 1974-12-20, S/N 30149 (OpenAirDocs)
- Reported make and model: BELL 205-A1
- Registry model: [Bell 205A-1](https://openairdocs.org/model/bell-205a-1) (registry code 1181414) (OpenAirDocs)
- Category: Helicopter
- Engines: turbo shaft
- Damage: Destroyed

## 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 19741104037229A](https://openairdocs.org/incident/19741104037229A), Nov 4, 1974: Bell UHIBWILCO, Marblemount, WA, Destroyed. Logging opn,external load.t/r hit tree,separated. Crashed on 60DEG slope.

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.

---
OpenAirDocs.org is an independent research project of [Contrail Labs](https://contraillabs.com/). It is not affiliated with the FAA or the NTSB. Source documents are U.S. government works in the public domain.