# NTSB FTW75DPJ01: Air & Space 18A, N6121S, Boise City, OK, July 24, 1974

- Type: NTSB accident investigation
- Classification: Accident · No injuries · Closed
- Date: July 24, 1974
- Place: Boise City, OK · BOISE CITY, OK
- Location: 36.7313° N, 102.5095° W: Placed by OpenAirDocs: center of Boise City, OK, within about 6 miles (OpenAirDocs)
- Nearby events: https://openairdocs.org/map.md?lat=36.7313&lon=-102.5095&mi=10
- Phase of flight: [Landing](https://openairdocs.org/ntsb-phases/550) (OpenAirDocs' grouping)
- Highest injury: No injuries
- Injuries: 1 uninjured
- Status: Completed, report August 23, 1974
- Report: Brief approved by the director
- NTSB case key (mKey): 132494
- NTSB case page: https://web.ntsb.gov/investigations/?ntsbnumber=FTW75DPJ01
- Page: https://openairdocs.org/ntsb/FTW75DPJ01

## NTSB brief

```
----------------------------------------------------------------------------------------------------------------------------
 FILE    DATE          LOCATION          AIRCRAFT DATA       INJURIES       FLIGHT                        PILOT DATA
                                                               F  S M/N     PURPOSE
----------------------------------------------------------------------------------------------------------------------------
3-1961  74/7/24    BOISE CITY,OKLA     AIR & SPACE 18A     CR-  0  0  1  NONCOMMERCIAL             PRIVATE, AGE 38, 99 TOTAL
        TIME - 1855                    N6121S              PX-  0  0  0  PLEASURE/PERSONAL TRANSP  HOURS, 35 IN TYPE, NOT
                                       DAMAGE-SUBSTANTIAL  OT-  0  0  0                            INSTRUMENT RATED.
        DEPARTURE POINT             INTENDED DESTINATION
          BOISE CITY,OKLA             LOCAL
        TYPE OF ACCIDENT                                         PHASE OF OPERATION
           HARD LANDING                                             LANDING: LEVEL OFF/TOUCHDOWN
           GEAR COLLAPSED                                           LANDING: ROLL
        PROBABLE CAUSE(S)
           PILOT IN COMMAND - IMPROPER OPERATION OF FLIGHT CONTROLS
           PILOT IN COMMAND - SELECTED UNSUITABLE TERRAIN
        FACTOR(S)
           TERRAIN - WET,SOFT GROUND
           MISCELLANEOUS ACTS,CONDITIONS - OVERLOAD FAILURE
        REMARKS- LND IN FARM FLD.
```

## Aircraft

- Registration: [N6121S](https://openairdocs.org/deregistered/N6121S-2013-04-26), registration cancelled 2013-04-26, S/N 1827, built 1965 (OpenAirDocs)
- Reported make and model: AIR & SPACE 18A
- Registry model: [Air & Space America 18A](https://openairdocs.org/model/air-space-america-18a) (registry code 0440104) (OpenAirDocs)
- Registry engine: [Lycoming 0-360-A1D](https://openairdocs.org/engine/lycoming-0-360-a1d) (registry code 41504, reciprocating) (OpenAirDocs)
- Category: Gyroplane
- Engines: reciprocating
- Damage: Substantial damage

## 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 19740724023379A](https://openairdocs.org/incident/19740724023379A), Jul 24, 1974: Airspc 18AAIRSPC, Boise City, OK, Substantial damage. Lnd in farm fld.

## Other investigations on N6121S (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 NYC01LA196](https://openairdocs.org/ntsb/NYC01LA196), Jul 31, 2001: Air & Space 18A (N6121S), Blairstown, NJ, substantial damage. Probable cause: An encounter with ground resonance for undetermined reasons.

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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