# NTSB MKC72FER62: Aero Comdr A-9B, N7756V, Mt.Lake, MN, May 26, 1972

- Type: NTSB accident investigation
- Classification: Accident · Serious injuries · Closed
- Date: May 26, 1972
- Place: Mt.Lake, MN · MT.LAKE, MN
- Phase of flight: [Maneuvering](https://openairdocs.org/ntsb-phases/450) (OpenAirDocs' grouping)
- Highest injury: Serious injuries
- Injuries: 1 serious
- Status: Completed, report November 2, 1972
- Report: Brief approved by the director
- NTSB case key (mKey): 166688
- NTSB case page: https://web.ntsb.gov/investigations/?ntsbnumber=MKC72FER62
- Page: https://openairdocs.org/ntsb/MKC72FER62

## NTSB brief

```
----------------------------------------------------------------------------------------------------------------------------
 FILE    DATE          LOCATION          AIRCRAFT DATA       INJURIES       FLIGHT                        PILOT DATA
                                                               F  S M/N     PURPOSE
----------------------------------------------------------------------------------------------------------------------------
3-0577  72/5/26    MT.LAKE,MINN        AERO COMDR A-9B     CR-  0  1  0  COMMERCIAL                PRIVATE, AGE 26, 323
        TIME - 0600                    N7756V              PX-  0  0  0  AERIAL APPLICATION        TOTAL HOURS, 5 IN TYPE,
                                       DAMAGE-DESTROYED    OT-  0  0  0                            NOT INSTRUMENT RATED.
        DEPARTURE POINT             INTENDED DESTINATION
          WINDOM,MINN                 LOCAL
        TYPE OF ACCIDENT                                         PHASE OF OPERATION
           STALL                                                    IN FLIGHT: STARTING SWATH RUN
        PROBABLE CAUSE(S)
           PILOT IN COMMAND - FAILED TO OBTAIN/MAINTAIN FLYING SPEED
        FACTOR(S)
           PILOT IN COMMAND - LACK OF FAMILIARITY WITH AIRCRAFT
         SPECIAL DATA
          TOTAL HOURS IN CROP CONTROL -    6                       KIND OF OPERATION - SPRAYING CROPS
          KIND OF CROP - GRAIN FIELDS                              TYPE OF CHEMICAL USED - LIQUID CHEMICAL-NONTOXIC
          PILOT' S SEAT BELT -FAILED ON IMPACT                     GLOVES - NOT USED
          GOGGLES - NOT USED                                       CRASH HELMET - AVAILABLE USED
          COCKPIT CRASHPAD - NOT INSTALLED                         CRASH BAR - INSTALLED
          TANK/HOPPER-LOCATION - FORWARD OF PILOT                  TERRAIN-TYPE -LEVEL,FLAT
          ELEVATION-AREA BEING TREATED-FEET -  1430                SWATH RUN-HOW FLOWN - WIND CALM
        REMARKS- CRASHED IN VERTICAL ATTITUDE.PLTS FIRST YR AS AERIAL APPLICATOR.
```

## Aircraft

- Registration: [N7756V](https://openairdocs.org/deregistered/N7756V-1973-05-25), registration cancelled 1973-05-25, S/N 1501 (OpenAirDocs)
- Reported make and model: AERO COMDR A-9B
- Registry model: [Aero Commander CALLAIR A-9B](https://openairdocs.org/model/aero-commander-callair-a-9b) (registry code 0144206) (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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