# NTSB SEA77FTA10: Champion 7GCAA, N9558S, Hardin, MT, January 29, 1977

- Type: NTSB accident investigation
- Classification: Accident · No injuries · Closed
- Date: January 29, 1977
- Place: Hardin, MT · HARDIN, MT
- Location: 45.7423° N, 107.6083° W: Placed by OpenAirDocs: center of Hardin, MT, within about 6 miles (OpenAirDocs)
- Nearby events: https://openairdocs.org/map.md?lat=45.7423&lon=-107.6083&mi=10
- Phase of flight: [Takeoff](https://openairdocs.org/ntsb-phases/300) (OpenAirDocs' grouping)
- Highest injury: No injuries
- Injuries: 1 uninjured
- Status: Completed, report February 11, 1977
- Report: Brief approved by the director
- NTSB case key (mKey): 156836
- NTSB case page: https://web.ntsb.gov/investigations/?ntsbnumber=SEA77FTA10
- Page: https://openairdocs.org/ntsb/SEA77FTA10

## NTSB brief

```
----------------------------------------------------------------------------------------------------------------------------
 FILE    DATE          LOCATION          AIRCRAFT DATA       INJURIES       FLIGHT                        PILOT DATA
                                                               F  S M/N     PURPOSE
----------------------------------------------------------------------------------------------------------------------------
3-0074  77/1/29  NR.HARDIN,MT          CHAMPION 7GCAA      CR-  0  0  1  NONCOMMERCIAL             STUDENT, AGE 19, 15 TOTAL
        TIME - 1220                    N9558S              PX-  0  0  0  PLEASURE/PERSONAL TRANSP  HOURS, ALL IN TYPE, NOT
                                       DAMAGE-SUBSTANTIAL  OT-  0  0  0                            INSTRUMENT RATED.
        NAME OF AIRPORT - RANCH STRIP
        DEPARTURE POINT             INTENDED DESTINATION
          RANCH STRIP                HARDIN,MT
        TYPE OF ACCIDENT                                         PHASE OF OPERATION
           AIRFRAME FAILURE: ON GROUND                              TAKEOFF: RUN
           COLLISION WITH GROUND/WATER: CONTROLLED                  LANDING: ROLL
        PROBABLE CAUSE(S)
           AIRFRAME - LANDING GEAR: MAIN GEAR-SHOCK ABSORBING ASSY,STRUTS,ATTACHMENTS,ETC.
        FACTOR(S)
           AIRPORTS/AIRWAYS/FACILITIES - AIRPORT CONDITIONS: POORLY MAINTAINED RUNWAY SURFACE
        EMERGENCY CIRCUMSTANCES - PRECAUTIONARY LANDING ON AIRPORT
                                  SUSPECTED OR KNOWN AIRCRAFT DAMAGE
        REMARKS- THREADED COLLAR,P/N 3-665A,BOTTOM OF OLEO SLIPPED DOWN STRUT. 41HRS ON PART.TKOF FM RANCH STRIP.
```

## Aircraft

- Registration: [N9558S](https://openairdocs.org/aircraft/N9558S), registered now, S/N 39 (OpenAirDocs)
- Reported make and model: CHAMPION 7GCAA
- Registry model: [Champion 7GCAA](https://openairdocs.org/model/champion-7gcaa) (registry code 21101N8) (OpenAirDocs)
- Registry engine: [Continental 0-200 series](https://openairdocs.org/engine/continental-0-200-series) (registry code 17020, reciprocating) (OpenAirDocs)
- Category: Airplane
- Engines: reciprocating
- Damage: Substantial damage
- Airport: Ranch Strip

## 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 19770129000849A](https://openairdocs.org/incident/19770129000849A), Jan 29, 1977: Blanca 7GCAA, Hardin, MT, Substantial damage. Threaded collar,p/n 3-665A,bottom of oleo slipped down strut. 41HRS on part. Tkof fm Ranch Strip.

## Other investigations on N9558S (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 OAK70DVM18](https://openairdocs.org/ntsb/OAK70DVM18), Jun 2, 1970: Champion 7ECA (N9558S), Palo Alto, CA, substantial damage
- [NTSB OAK69D0183](https://openairdocs.org/ntsb/OAK69D0183), Nov 17, 1968: Champion 7KCAB (N9558S), Fremont, CA, 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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