# NTSB UNK64X3212: Boeing A75, N52532, Yazoo City, MS, August 4, 1964

- Type: NTSB accident investigation
- Classification: Accident · No injuries · Closed
- Date: August 4, 1964
- Place: Yazoo City, MS · YAZOO CITY, MS
- Location: 32.8622° N, 90.4080° W: Placed by OpenAirDocs: center of Yazoo City, MS, within about 6 miles (OpenAirDocs)
- Nearby events: https://openairdocs.org/map.md?lat=32.8622&lon=-90.4080&mi=10
- Phase of flight: [Maneuvering](https://openairdocs.org/ntsb-phases/450) (OpenAirDocs' grouping)
- Highest injury: No injuries
- Injuries: 1 uninjured
- Status: Completed, report October 21, 1964
- Report: Brief approved by the director
- NTSB case key (mKey): 182307
- NTSB case page: https://web.ntsb.gov/investigations/?ntsbnumber=UNK64X3212
- Page: https://openairdocs.org/ntsb/UNK64X3212

## NTSB brief

```
----------------------------------------------------------------------------------------------------------------------------
 FILE    DATE          LOCATION          AIRCRAFT DATA       INJURIES       FLIGHT                        PILOT DATA
                                                               F  S M/N     PURPOSE
----------------------------------------------------------------------------------------------------------------------------
3-2345   64/8/4    YAZOO CITY MISS     BOEING A75          CR-  0  0  1  COMMERCIAL                COMMERCIAL, AGE 32, 7000
        TIME - 1500                    N52532              PX-  0  0  0  ASSOC CROP CTL ACTIVITY   TOTAL HOURS, 1000 IN
                                       DAMAGE-DESTROYED    OT-  0  0  0                            TYPE, INSTRUMENT RATED.
        TYPE OF ACCIDENT                                         PHASE OF OPERATION
           ENGINE FAILURE OR MALFUNCTION                            IN FLIGHT: SURVEY FIELD/AREA
           HARD LANDING                                             LANDING: LEVEL OFF/TOUCHDOWN
        PROBABLE CAUSE(S)
           POWERPLANT - FUEL SYSTEM: CARBURETOR
           MISCELLANEOUS ACTS,CONDITIONS - IMPROPER ALIGNMENT/ADJUSTMENT
           PERSONNEL - MAINTENANCE,SERVICING,INSPECTION: IMPROPER MAINTENANCE (MAINTENANCE PERSONNEL)
           PERSONNEL - MAINTENANCE,SERVICING,INSPECTION: INADEQUATE INSPECTION OF AIRCRAFT (MAINTENANCE PERSONNEL)
        PARTIAL POWER LOSS - PARTIAL LOSS OF POWER - 1 ENGINE
        EMERGENCY CIRCUMSTANCES - FORCED LANDING OFF AIRPORT ON LAND
         SPECIAL DATA
          TOTAL HOURS IN CROP CONTROL - 1000                       KIND OF OPERATION - SPRAYING CROPS
          KIND OF CROP - COTTON                                    TYPE OF CHEMICAL USED - LIQUID CHEMICAL-TOXIC
          PILOT' S SEAT BELT -FASTENED-PROPERLY                    CRASH HELMET - AVAILABLE USED
          COCKPIT CRASHPAD - NOT INSTALLED                         CRASH BAR - NOT INSTALLED
          TANK/HOPPER-LOCATION - FORWARD OF PILOT                  ELEVATION-AREA BEING TREATED-FEET -  125
        REMARKS- CARBURETOR ECONOMIZER VALVE NOT ADJUSTED PROPERLY AND FLOAT LEVEL 1/4 INCH TOO HIGH.
```

## Aircraft

- Registration: [N52532](https://openairdocs.org/deregistered/N52532-1964-09-23), registration cancelled 1964-09-23, S/N 75-2240 (OpenAirDocs)
- Reported make and model: BOEING A75
- Registry model: [Boeing D75N1](https://openairdocs.org/model/boeing-d75n1) (registry code 1380148) (OpenAirDocs)
- Category: Airplane
- Engines: reciprocating
- Damage: Destroyed

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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