# NTSB SEA66A0014: Helio Acft H-391B, N4132D, Mead, WA, August 19, 1965

- Type: NTSB accident investigation
- Classification: Accident · Fatal · Closed
- Date: August 19, 1965
- Place: Mead, WA · MEAD, WA
- Location: 47.7795° N, 117.3499° W: Placed by OpenAirDocs: center of Mead, WA, within about 6 miles (OpenAirDocs)
- Nearby events: https://openairdocs.org/map.md?lat=47.7795&lon=-117.3499&mi=10
- Phase of flight: [Enroute](https://openairdocs.org/ntsb-phases/400) (OpenAirDocs' grouping)
- Highest injury: Fatal
- Injuries: 1 fatal
- Status: Completed, report April 22, 1966
- Report: Brief approved by the director
- NTSB case key (mKey): 177352
- NTSB case page: https://web.ntsb.gov/investigations/?ntsbnumber=SEA66A0014
- Page: https://openairdocs.org/ntsb/SEA66A0014

## NTSB brief

```
----------------------------------------------------------------------------------------------------------------------------
 FILE    DATE          LOCATION          AIRCRAFT DATA       INJURIES       FLIGHT                        PILOT DATA
                                                               F  S M/N     PURPOSE
----------------------------------------------------------------------------------------------------------------------------
2-0998  65/8/19  NR.MEAD WASH          HELIO ACFT H-391B   CR-  1  0  0  NONCOMMERCIAL             COMMERCIAL, FL.INSTR.,
        TIME - 2050                    N4132D              PX-  0  0  0  BUSINESS                  AGE 55, 6680 TOTAL HOURS,
                                       DAMAGE-DESTROYED    OT-  0  0  0                            253 IN TYPE, NOT
                                                                                                   INSTRUMENT RATED.
        TYPE OF ACCIDENT                                         PHASE OF OPERATION
           AIRFRAME FAILURE: IN FLIGHT                              IN FLIGHT: OTHER
           COLLISION WITH GROUND/WATER: UNCONTROLLED                IN FLIGHT: UNCONTROLLED DESCENT
        PROBABLE CAUSE(S)
           PILOT IN COMMAND - CONTINUED VFR FLIGHT INTO ADVERSE WEATHER CONDITIONS
           PILOT IN COMMAND - EXERCISED POOR JUDGMENT
        FACTOR(S)
           WEATHER - LOW CEILING
           WEATHER - RAIN
           WEATHER - THUNDERSTORM ACTIVITY
           MISCELLANEOUS ACTS,CONDITIONS - SEPARATION IN FLIGHT
           MISCELLANEOUS ACTS,CONDITIONS - OVERLOAD FAILURE
        WEATHER BRIEFING - BRIEFED BY WEATHER BUREAU PERSONEL, BY PHONE
        WEATHER FORECAST - FORECAST SUBSTANTIALLY CORRECT
        SKY CONDITION                                            CEILING AT ACCIDENT SITE
          OVERCAST                                                  800
        VISIBILITY AT ACCIDENT SITE                              PRECIPITATION AT ACCIDENT SITE
          4 MILES OR LESS                                          RAIN
        TEMPERATURE-F                                            WIND DIRECTION-DEGREES
           58                                                      190
        WIND VELOCITY-KNOTS                                      TYPE OF WEATHER CONDITIONS
           12                                                      IFR
        TYPE OF FLIGHT PLAN
          NONE
         FIRE AFTER IMPACT
```

## Aircraft

- Registration: [N4132D](https://openairdocs.org/deregistered/N4132D-1965-10-28), registration cancelled 1965-10-28, S/N 079 (OpenAirDocs)
- Reported make and model: HELIO ACFT H-391B
- Registry model: [Helio H-391B](https://openairdocs.org/model/helio-h-391b) (registry code 4300106) (OpenAirDocs)
- Category: Airplane
- Engines: reciprocating
- Damage: Destroyed

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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