# NTSB SEA67A0010: Hughes 269B, N9427F, Eaverton, OR, August 7, 1966

- Type: NTSB accident investigation
- Classification: Accident · Minor injuries · Closed
- Date: August 7, 1966
- Place: Eaverton, OR · EAVERTON, OR
- Phase of flight: [Takeoff](https://openairdocs.org/ntsb-phases/300) (OpenAirDocs' grouping)
- Highest injury: Minor injuries
- Injuries: 1 minor, 2 uninjured
- Status: Completed, report April 4, 1967
- Report: Brief approved by the director
- NTSB case key (mKey): 122449
- NTSB case page: https://web.ntsb.gov/investigations/?ntsbnumber=SEA67A0010
- Page: https://openairdocs.org/ntsb/SEA67A0010

## NTSB brief

```
----------------------------------------------------------------------------------------------------------------------------
 FILE    DATE          LOCATION          AIRCRAFT DATA       INJURIES       FLIGHT                        PILOT DATA
                                                               F  S M/N     PURPOSE
----------------------------------------------------------------------------------------------------------------------------
2-0711   66/8/7    EAVERTON OREG       HUGHES 269B         CR-  0  0  1  NONCOMMERCIAL             PRIVATE, AGE 40, 832
        TIME - 1135                    N9427F              PX-  0  0  2  PLEASURE/PERSONAL TRANSP  TOTAL HOURS, 5 IN TYPE,
                                       DAMAGE-SUBSTANTIAL  OT-  0  0  0                            NOT INSTRUMENT RATED.
        NAME OF AIRPORT - BERNARD
        TYPE OF ACCIDENT                                         PHASE OF OPERATION
           STALL                                                    TAKEOFF: VERTICAL
           COLLISION WITH GROUND/WATER: CONTROLLED                  IN FLIGHT: POWER-ON DESCENT
        PROBABLE CAUSE(S)
           PILOT IN COMMAND - FAILED TO MAINTAIN ADEQUATE ROTOR R.P.M.
           PILOT IN COMMAND - IMPROPER OPERATION OF POWERPLANT & POWERPLANT CONTROLS
           PILOT IN COMMAND - IMPROPER OPERATION OF FLIGHT CONTROLS
           PILOT IN COMMAND - EXERCISED POOR JUDGMENT
        FACTOR(S)
           TERRAIN - HIGH OBSTRUCTIONS
           TERRAIN - OTHER
        REMARKS- INITIATED MAXIMUM PERFORMANCE TYPE TAKEOFF FROM GARAGE ROOF IN WELL POPULATED RESIDENTIAL AREA.
```

## Aircraft

- Registration: [N9427F](https://openairdocs.org/deregistered/N9427F-2016-05-05), registration cancelled 2016-05-05, S/N 0174, built 1963 (OpenAirDocs)
- Reported make and model: HUGHES 269B
- Registry model: [Hughes 269B](https://openairdocs.org/model/hughes-269b) (registry code 4470502) (OpenAirDocs)
- Registry engine: [Lycoming HIO-360 series](https://openairdocs.org/engine/lycoming-hio-360-series) (registry code 41524, reciprocating) (OpenAirDocs)
- Category: Helicopter
- Engines: reciprocating
- Damage: Substantial damage
- Airport: Bernard

## Other investigations on N9427F (4)

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 CEN15LA341](https://openairdocs.org/ntsb/CEN15LA341), Aug 5, 2015: Hughes 269B (N9427F), Atkinson, IL, destroyed. Probable cause: The pilot's improper decision to intentionally fly the helicopter at a low altitude and his subsequent failure to maintain clearance from a power line.
- [NTSB CHI86LA236](https://openairdocs.org/ntsb/CHI86LA236), Sep 26, 1986: Hughes 269B (N9427F), Baldwin, WI, substantial damage
- [NTSB DEN78DTC15](https://openairdocs.org/ntsb/DEN78DTC15), Mar 3, 1978: Hughes 269B (N9427F), Douglas, WY, substantial damage
- [NTSB SEA71DXM18](https://openairdocs.org/ntsb/SEA71DXM18), Jan 7, 1971: Hughes 269B (N9427F), Atlanta, ID, 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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