# NTSB SEA68D0311: Hughes 269B, N9477F, Tigard, OR, April 20, 1968

- Type: NTSB accident investigation
- Classification: Accident · No injuries · Closed
- Date: April 20, 1968
- Place: Tigard, OR · TIGARD, OR
- Location: 45.4229° N, 122.7844° W: Placed by OpenAirDocs: center of Tigard, OR, within about 6 miles (OpenAirDocs)
- Nearby events: https://openairdocs.org/map.md?lat=45.4229&lon=-122.7844&mi=10
- Phase of flight: [Takeoff](https://openairdocs.org/ntsb-phases/300) (OpenAirDocs' grouping)
- Highest injury: No injuries
- Injuries: 2 uninjured
- Status: Completed, report July 25, 1968
- Report: Brief approved by the director
- NTSB case key (mKey): 110462
- NTSB case page: https://web.ntsb.gov/investigations/?ntsbnumber=SEA68D0311
- Page: https://openairdocs.org/ntsb/SEA68D0311

## NTSB brief

```
----------------------------------------------------------------------------------------------------------------------------
 FILE    DATE          LOCATION          AIRCRAFT DATA       INJURIES       FLIGHT                        PILOT DATA
                                                               F  S M/N     PURPOSE
----------------------------------------------------------------------------------------------------------------------------
3-1710  68/4/20    TIGARD,OREG         HUGHES 269B         CR-  0  0  1  NONCOMMERCIAL             COMMERCIAL, AGE 48, 1790
        TIME - 1035                    N9477F              PX-  0  0  1  BUSINESS                  TOTAL HOURS, 43 IN TYPE,
                                       DAMAGE-SUBSTANTIAL  OT-  0  0  0                            NOT INSTRUMENT RATED.
        NAME OF AIRPORT - MEYER
        TYPE OF ACCIDENT                                         PHASE OF OPERATION
           ROLL OVER                                                TAKEOFF: VERTICAL
        PROBABLE CAUSE(S)
           PILOT IN COMMAND - IMPROPER OPERATION OF FLIGHT CONTROLS
        FACTOR(S)
           TERRAIN - WET,SOFT GROUND
        REMARKS- SKID STUCK IN MUD.FAILED TO GET ACFT LIGHT ON SKIDS BEFORE LIFT-OFF.
```

## Aircraft

- Registration: [N9477F](https://openairdocs.org/deregistered/N9477F-2006-05-26), registration cancelled 2006-05-26, S/N 96-0253, built 1966 (OpenAirDocs)
- Reported make and model: HUGHES 269B
- Registry model: [Hughes 269B](https://openairdocs.org/model/hughes-269b) (registry code 4470502) (OpenAirDocs)
- Registry engine: [Lycoming I0360 series](https://openairdocs.org/engine/lycoming-i0360-series) (registry code 41515, reciprocating) (OpenAirDocs)
- Category: Helicopter
- Engines: reciprocating
- Damage: Substantial damage
- Airport: Meyer

## Other investigations on N9477F (2)

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 SEA81DYP04](https://openairdocs.org/ntsb/SEA81DYP04), Nov 23, 1980: Hughes 269B (N9477F), Ephrata, WA, substantial damage
- [NTSB SEA71FYC35](https://openairdocs.org/ntsb/SEA71FYC35), Apr 26, 1971: Hughes 269B (N9477F), Portland, 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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