# NTSB FTW71FPJ36: Callair A-4, N7579C, Terral, OK, March 28, 1971

- Type: NTSB accident investigation
- Classification: Accident · No injuries · Closed
- Date: March 28, 1971
- Place: Terral, OK · TERRAL, OK
- Location: 33.8966° N, 97.9382° W: Placed by OpenAirDocs: center of Terral, OK, within about 6 miles (OpenAirDocs)
- Nearby events: https://openairdocs.org/map.md?lat=33.8966&lon=-97.9382&mi=10
- Phase of flight: [Initial climb](https://openairdocs.org/ntsb-phases/350) (OpenAirDocs' grouping)
- Highest injury: No injuries
- Injuries: 1 uninjured
- Status: Completed, report February 10, 1972
- Report: Brief approved by the director
- NTSB case key (mKey): 160798
- NTSB case page: https://web.ntsb.gov/investigations/?ntsbnumber=FTW71FPJ36
- Page: https://openairdocs.org/ntsb/FTW71FPJ36

## NTSB brief

```
----------------------------------------------------------------------------------------------------------------------------
 FILE    DATE          LOCATION          AIRCRAFT DATA       INJURIES       FLIGHT                        PILOT DATA
                                                               F  S M/N     PURPOSE
----------------------------------------------------------------------------------------------------------------------------
3-2015  71/3/28    TERRAL,OKLA         CALLAIR A-4         CR-  0  0  1  COMMERCIAL                COMMERCIAL, AGE 26, 320
        TIME - 0930                    N7579C              PX-  0  0  0  ASSOC CROP CTL ACTIVITY   TOTAL HOURS, 26 IN TYPE,
                                       DAMAGE-SUBSTANTIAL  OT-  0  0  0                            INSTRUMENT RATED.
        DEPARTURE POINT             INTENDED DESTINATION
          TERRAL,OKLA                 LOCAL
        TYPE OF ACCIDENT                                         PHASE OF OPERATION
           ENGINE FAILURE OR MALFUNCTION                            TAKEOFF: INITIAL CLIMB
           GEAR COLLAPSED                                           LANDING: ROLL
        PROBABLE CAUSE(S)
           PILOT IN COMMAND - INADEQUATE PREFLIGHT PREPARATION AND/OR PLANNING
           PERSONNEL - MAINTENANCE,SERVICING,INSPECTION: OTHER
           MISCELLANEOUS ACTS,CONDITIONS - WATER IN FUEL
           TERRAIN - ROUGH/UNEVEN
        FACTOR(S)
           MISCELLANEOUS ACTS,CONDITIONS - OVERLOAD FAILURE
        PARTIAL POWER LOSS - PARTIAL LOSS OF POWER - 1 ENGINE
        EMERGENCY CIRCUMSTANCES - FORCED LANDING OFF AIRPORT ON LAND
         SPECIAL DATA
          TOTAL HOURS IN CROP CONTROL -   26                       KIND OF OPERATION - SPRAYING CROPS
          KIND OF CROP - GRAIN FIELDS                              TYPE OF CHEMICAL USED - LIQUID CHEMICAL-TOXIC
          PILOT' S SEAT BELT -FASTENED-PROPERLY                    GLOVES - USED
          GOGGLES - USED                                           CRASH HELMET - AVAILABLE USED
          COCKPIT CRASHPAD - INSTALLED                             CRASH BAR - INSTALLED
          TANK/HOPPER-LOCATION - SIDES                             TERRAIN-TYPE -LEVEL,FLAT
        REMARKS- WATER CONTAMINATED FUEL FOUND IN FUEL SERVICING TANK.
```

## Aircraft

- Registration: [N7579C](https://openairdocs.org/deregistered/N7579C-1972-03-13), registration cancelled 1972-03-13, S/N 184 (OpenAirDocs)
- Reported make and model: CALLAIR A-4
- Registry model: [Intermountain CALLAIR A-4](https://openairdocs.org/model/intermountain-callair-a-4) (registry code 4570608) (OpenAirDocs)
- Category: Airplane
- Engines: reciprocating
- Damage: 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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