# NTSB ANC80FAA15: Helio Acft H-250, N173K, Northway, AK, June 28, 1980

- Type: NTSB accident investigation
- Classification: Accident · No injuries · Closed
- Date: June 28, 1980
- Place: Northway, AK · NORTHWAY, AK
- Location: 62.9617° N, 141.9372° W: Placed by OpenAirDocs: center of Northway, AK, within about 9 miles (OpenAirDocs)
- Nearby events: https://openairdocs.org/map.md?lat=62.9617&lon=-141.9372&mi=10
- Phase of flight: [Landing](https://openairdocs.org/ntsb-phases/550) (OpenAirDocs' grouping)
- Highest injury: No injuries
- Injuries: 2 uninjured
- Status: Completed, report July 30, 1980
- Report: Brief approved by the director
- NTSB case key (mKey): 129980
- NTSB case page: https://web.ntsb.gov/investigations/?ntsbnumber=ANC80FAA15
- Page: https://openairdocs.org/ntsb/ANC80FAA15

## NTSB brief

```
----------------------------------------------------------------------------------------------------------------------------
 FILE    DATE          LOCATION          AIRCRAFT DATA       INJURIES       FLIGHT                        PILOT DATA
                                                               F  S M/N     PURPOSE
----------------------------------------------------------------------------------------------------------------------------
3-1556  80/6/28    NORTHWAY,AK         HELIO ACFT H-250    CR-  0  0  1  NONCOMMERCIAL             COMMERCIAL, AGE 21, 556
        TIME - 2030                    N173K               PX-  0  0  1  PLEASURE/PERSONAL TRANSP  TOTAL HOURS, 3 IN TYPE,
                                       DAMAGE-SUBSTANTIAL  OT-  0  0  0                            NOT INSTRUMENT RATED.
        NAME OF AIRPORT - NORTHWAY
        DEPARTURE POINT             INTENDED DESTINATION
          NORTHWAY,AK                 LOCAL
        TYPE OF ACCIDENT                                         PHASE OF OPERATION
           GROUND-WATER LOOP-SWERVE                                 LANDING: ROLL
        PROBABLE CAUSE(S)
           PILOT IN COMMAND - IMPROPER OPERATION OF BRAKES AND/OR FLIGHT CONTROLS
           PILOT IN COMMAND - LACK OF FAMILIARITY WITH AIRCRAFT
```

## Aircraft

- Registration: [N173K](https://openairdocs.org/aircraft/N173K), registered now, S/N 074 (OpenAirDocs)
- Reported make and model: HELIO ACFT H-250
- Registry model: [Helio H-391B](https://openairdocs.org/model/helio-h-391b) (registry code 4300106) (OpenAirDocs)
- Registry engine: [Lycoming GO-435](https://openairdocs.org/engine/lycoming-go-435) (registry code 41520, reciprocating) (OpenAirDocs)
- Category: Airplane
- Engines: reciprocating
- Damage: Substantial damage
- Airport: Northway

## 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 19800628023769A](https://openairdocs.org/incident/19800628023769A), Jun 28, 1980: Helio H391B, Northway, AK, Substantial damage. Unskilled in type. Tried to turn around on landing roll-out. Lost control. Ground-looped.

## Other investigations on N173K (3)

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 ANC94LA007](https://openairdocs.org/ntsb/ANC94LA007), Oct 8, 1993: Helio H-391-B (N173K), Beaver Creek, AK, substantial damage. Probable cause: THE PILOT'S FAILURE TO MAINTAIN THE REQUIRED AIRSPEED DURING THE EMERGENCY DESCENT AS PUBLISHED IN THE PILOT'S MANUAL. A FACTOR IS THE LOSS OF ENGINE POWER FOR UNDETERMINED REASONS.
- [NTSB LAX67F0059](https://openairdocs.org/ntsb/LAX67F0059), Aug 2, 1966: Helio H-391B (N173K), Van Nuys, CA, substantial damage
- [NTSB UNK65X0217](https://openairdocs.org/ntsb/UNK65X0217), Oct 10, 1964: Helio 391B (N173K), Perry, FL, 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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