# NTSB ANC74AA028: Helio Acft H-250, N6318V, Grubstake, AK, August 22, 1973

- Type: NTSB accident investigation
- Classification: Accident · No injuries · Closed
- Date: August 22, 1973
- Place: Grubstake, AK · GRUBSTAKE, AK
- Phase of flight: [Takeoff](https://openairdocs.org/ntsb-phases/300) (OpenAirDocs' grouping)
- Highest injury: No injuries
- Injuries: 4 uninjured
- Status: Completed, report October 29, 1973
- Report: Brief approved by the director
- NTSB case key (mKey): 188903
- NTSB case page: https://web.ntsb.gov/investigations/?ntsbnumber=ANC74AA028
- Page: https://openairdocs.org/ntsb/ANC74AA028

## NTSB brief

```
----------------------------------------------------------------------------------------------------------------------------
 FILE    DATE          LOCATION          AIRCRAFT DATA       INJURIES       FLIGHT                        PILOT DATA
                                                               F  S M/N     PURPOSE
----------------------------------------------------------------------------------------------------------------------------
3-3205  73/8/22    GRUBSTAKE,ALAS      HELIO ACFT H-250    CR-  0  0  1  COMMERCIAL                COMMERCIAL, FL.INSTR.,
        TIME - 1830                    N6318V              PX-  0  0  3  AIR TAXI-PASSG            AGE 33, 2223 TOTAL HOURS,
                                       DAMAGE-SUBSTANTIAL  OT-  0  0  0                            65 IN TYPE, NOT
                                                                                                   INSTRUMENT RATED.
        NAME OF AIRPORT - GRUBSTAKE
        DEPARTURE POINT             INTENDED DESTINATION         LAST ENROUTE STOP
          FAIRBANKS,ALAS             UNKNOWN/NOT REPORTED          GRUBSTAKE,ALAS
        TYPE OF ACCIDENT                                         PHASE OF OPERATION
           NOSE OVER/DOWN                                           TAKEOFF: ABORTED
        PROBABLE CAUSE(S)
           PILOT IN COMMAND - DELAYED ACTION IN ABORTING TAKEOFF
        FACTOR(S)
           PILOT IN COMMAND - INADEQUATE PREFLIGHT PREPARATION AND/OR PLANNING
           AIRPORTS/AIRWAYS/FACILITIES - AIRPORT CONDITIONS: WET RUNWAY
           AIRPORTS/AIRWAYS/FACILITIES - AIRPORT CONDITIONS: OTHER
        REMARKS- 900-1000FT STRIP,ABT 650FT USABLE.RAN OFF END OF RWY INTO SWAMPY OVERRUN,WATER 1-3FT DEEP.
```

## Aircraft

- Registration: [N6318V](https://openairdocs.org/aircraft/N6318V), registered now, S/N 2537, built 1966 (OpenAirDocs)
- Reported make and model: HELIO ACFT H-250
- Registry model: [Helio H-250](https://openairdocs.org/model/helio-h-250) (registry code 4300302) (OpenAirDocs)
- Registry engine: [Lycoming 0-540 series](https://openairdocs.org/engine/lycoming-0-540-series) (registry code 41532, reciprocating) (OpenAirDocs)
- Category: Airplane
- Engines: reciprocating
- Damage: Substantial damage
- Airport: Grubstake

## 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 19730822026589A](https://openairdocs.org/incident/19730822026589A), Aug 22, 1973: Helio H250, Grubstake, AK, Substantial damage. 900-1000FT strip,abt 650FT usable. Ran off end of rwy into swampy overrun,water 1-3FT deep.

## Other investigations on N6318V (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 MKC67F0136](https://openairdocs.org/ntsb/MKC67F0136), Jul 22, 1966: Helio H-250 (N6318V), Hot Springs, SD, 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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