# NTSB MKC71DCQ35: Boeing A75N1, N75321, Liberal, KS, April 25, 1971

- Type: NTSB accident investigation
- Classification: Accident · No injuries · Closed
- Date: April 25, 1971
- Place: Liberal, KS · LIBERAL, KS
- Location: 37.0461° N, 100.9277° W: Placed by OpenAirDocs: center of Liberal, KS, within about 6 miles (OpenAirDocs)
- Nearby events: https://openairdocs.org/map.md?lat=37.0461&lon=-100.9277&mi=10
- Phase of flight: [Landing](https://openairdocs.org/ntsb-phases/550) (OpenAirDocs' grouping)
- Highest injury: No injuries
- Injuries: 1 uninjured
- Status: Completed, report November 19, 1971
- Report: Brief approved by the director
- NTSB case key (mKey): 160181
- NTSB case page: https://web.ntsb.gov/investigations/?ntsbnumber=MKC71DCQ35
- Page: https://openairdocs.org/ntsb/MKC71DCQ35

## NTSB brief

```
----------------------------------------------------------------------------------------------------------------------------
 FILE    DATE          LOCATION          AIRCRAFT DATA       INJURIES       FLIGHT                        PILOT DATA
                                                               F  S M/N     PURPOSE
----------------------------------------------------------------------------------------------------------------------------
3-0418  71/4/25    LIBERAL,KANS        BOEING A75N1        CR-  0  0  1  NONCOMMERCIAL             ATP,FLIGHT INSTR., AGE
        TIME - 1100                    N75321              PX-  0  0  0  PRACTICE                  43, 5855 TOTAL HOURS, 3
                                       DAMAGE-SUBSTANTIAL  OT-  0  0  0                            IN TYPE, INSTRUMENT
                                                                                                   RATED.
        NAME OF AIRPORT - LIBERAL
        DEPARTURE POINT             INTENDED DESTINATION
          LIBERAL,KANS                LOCAL
        TYPE OF ACCIDENT                                         PHASE OF OPERATION
           GROUND-WATER LOOP-SWERVE                                 LANDING: ROLL
           NOSE OVER/DOWN                                           LANDING: ROLL
        PROBABLE CAUSE(S)
           PILOT IN COMMAND - IMPROPER OPERATION OF BRAKES AND/OR FLIGHT CONTROLS
        FACTOR(S)
           PILOT IN COMMAND - LACK OF FAMILIARITY WITH AIRCRAFT
        REMARKS- PLT WAS PRACTISING IN TYPE ACFT TO GAIN PROFICIENCY BEFORE AERIAL APPL SEASON. NO LOAD ABD.
```

## Aircraft

- Registration: [N75321](https://openairdocs.org/aircraft/N75321), registered now, S/N 75-3523 (OpenAirDocs)
- Reported make and model: BOEING A75N1
- Registry model: [Boeing A75N1(PT17)](https://openairdocs.org/model/boeing-a75n1-pt17) (registry code 1380134) (OpenAirDocs)
- Registry engine: [Continental W670 series](https://openairdocs.org/engine/continental-w670-series) (registry code 17018, reciprocating) (OpenAirDocs)
- Category: Airplane
- Engines: reciprocating
- Damage: Substantial damage
- Airport: Liberal

## Other investigations on N75321 (4)

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 WPR23LA050](https://openairdocs.org/ntsb/WPR23LA050), Oct 26, 2022: Boeing A75N1(PT17) (N75321), Long Beach, CA, substantial damage. Probable cause: The pilot’s failure to maintain directional control during landing.
- [NTSB FTW76DQH09](https://openairdocs.org/ntsb/FTW76DQH09), Sep 14, 1976: Boeing A75 (N75321), Tulia, TX, substantial damage
- [NTSB FTW74DPJ04](https://openairdocs.org/ntsb/FTW74DPJ04), Aug 3, 1973: Boeing A75N1 (N75321), Minco, OK, substantial damage
- [NTSB UNK64X2690](https://openairdocs.org/ntsb/UNK64X2690), Jul 6, 1964: Boeing A75N1 (N75321), Brangeville, ID, 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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