# NTSB MKC72FTG01: Cessna 188, N9946G, Grafton, ND, July 1, 1971

- Type: NTSB accident investigation
- Classification: Accident · No injuries · Closed
- Date: July 1, 1971
- Place: Grafton, ND · GRAFTON, ND
- Location: 48.4139° N, 97.4062° W: Placed by OpenAirDocs: center of Grafton, ND, within about 6 miles (OpenAirDocs)
- Nearby events: https://openairdocs.org/map.md?lat=48.4139&lon=-97.4062&mi=10
- Phase of flight: [Maneuvering](https://openairdocs.org/ntsb-phases/450) (OpenAirDocs' grouping)
- Highest injury: No injuries
- Injuries: 1 uninjured
- Status: Completed, report November 1, 1971
- Report: Brief approved by the director
- NTSB case key (mKey): 161191
- NTSB case page: https://web.ntsb.gov/investigations/?ntsbnumber=MKC72FTG01
- Page: https://openairdocs.org/ntsb/MKC72FTG01

## NTSB brief

```
----------------------------------------------------------------------------------------------------------------------------
 FILE    DATE          LOCATION          AIRCRAFT DATA       INJURIES       FLIGHT                        PILOT DATA
                                                               F  S M/N     PURPOSE
----------------------------------------------------------------------------------------------------------------------------
3-0222   71/7/1    GRAFTON,N DAK       CESSNA 188          CR-  0  0  1  COMMERCIAL                COMMERCIAL, AGE 32, 5250
        TIME - 1420                    N9946G              PX-  0  0  0  AERIAL APPLICATION        TOTAL HOURS, 550 IN TYPE,
                                       DAMAGE-DESTROYED    OT-  0  0  0                            NOT INSTRUMENT RATED.
        NAME OF AIRPORT - GRAFTON
        DEPARTURE POINT             INTENDED DESTINATION
          GRAFTON,N DAK               LOCAL
        TYPE OF ACCIDENT                                         PHASE OF OPERATION
           ENGINE FAILURE OR MALFUNCTION                            IN FLIGHT: PROCEDURE TURNAROUND
           NOSE OVER/DOWN                                           LANDING: ROLL
        PROBABLE CAUSE(S)
           PERSONNEL - MAINTENANCE,SERVICING,INSPECTION: INADEQUATE MAINTENANCE AND INSPECTION
           POWERPLANT - FUEL SYSTEM: RAM AIR ASSEMBLY
           POWERPLANT - ENGINE CONTROLS: THROTTLE-POWER LEVER ASSEMBLIES
           MISCELLANEOUS ACTS,CONDITIONS - DISCONNECTED
           TERRAIN - WET,SOFT GROUND
        PARTIAL POWER LOSS - PARTIAL LOSS OF POWER - 1 ENGINE
        EMERGENCY CIRCUMSTANCES - FORCED LANDING OFF AIRPORT ON LAND
         SPECIAL DATA
          TOTAL HOURS IN CROP CONTROL - 5000                       KIND OF OPERATION - SPRAYING CROPS
          KIND OF CROP - GRAIN FIELDS                              TYPE OF CHEMICAL USED - LIQUID CHEMICAL-NONTOXIC
          PILOT' S SEAT BELT -FASTENED-PROPERLY                    GLOVES - NOT USED
          GOGGLES - NOT USED                                       CRASH HELMET - AVAILABLE USED
          COCKPIT CRASHPAD - INSTALLED                             CRASH BAR - INSTALLED
          TANK/HOPPER-LOCATION - FORWARD OF PILOT                  TERRAIN-TYPE -LEVEL,FLAT
          ELEVATION-AREA BEING TREATED-FEET -  820                 SWATH RUN-HOW FLOWN - WIND CALM
          PROCEDURE TURNAROUND - SECOND 1/3 TURN
        REMARKS- THROTTLE MIXT BELLCRANK IDLER SHAFT SEPARATED FROM AIR BOX.SPRING TO FULL PWR DID NOT OPERATE.
```

## Aircraft

- Registration: [N9946G](https://openairdocs.org/deregistered/N9946G-2010-05-27), registration cancelled 2010-05-27, S/N 18800746, built 1971 (OpenAirDocs)
- Reported make and model: CESSNA 188
- Registry model: [Cessna A188A](https://openairdocs.org/model/cessna-a188a) (registry code 2073008) (OpenAirDocs)
- Registry engine: [Continental IO-520 series](https://openairdocs.org/engine/continental-io-520-series) (registry code 17032, reciprocating) (OpenAirDocs)
- Category: Airplane
- Engines: reciprocating
- Damage: Destroyed
- Airport: Grafton

## Other investigations on N9946G (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 CHI92DEC01](https://openairdocs.org/ntsb/CHI92DEC01), May 19, 1992: Cessna 188A (N9946G), Imlay City, MI, destroyed. Probable cause: THE PILOT INDUCED PREMATURE LIFTOFF WHICH RESULTED IN INADEQUATE AIRSPEED AND THE RESULTING STALL.

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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