# NTSB MKC73DCQ26: Grumman G-164, N646Y, Attica, KS, March 21, 1973

- Type: NTSB accident investigation
- Classification: Accident · No injuries · Closed
- Date: March 21, 1973
- Place: Attica, KS · ATTICA, KS
- Location: 37.2426° N, 98.2276° W: Placed by OpenAirDocs: center of Attica, KS, within about 6 miles (OpenAirDocs)
- Nearby events: https://openairdocs.org/map.md?lat=37.2426&lon=-98.2276&mi=10
- Phase of flight: [Maneuvering](https://openairdocs.org/ntsb-phases/450) (OpenAirDocs' grouping)
- Highest injury: No injuries
- Injuries: 1 uninjured
- Status: Completed, report April 26, 1973
- Report: Brief approved by the director
- NTSB case key (mKey): 163221
- NTSB case page: https://web.ntsb.gov/investigations/?ntsbnumber=MKC73DCQ26
- Page: https://openairdocs.org/ntsb/MKC73DCQ26

## NTSB brief

```
----------------------------------------------------------------------------------------------------------------------------
 FILE    DATE          LOCATION          AIRCRAFT DATA       INJURIES       FLIGHT                        PILOT DATA
                                                               F  S M/N     PURPOSE
----------------------------------------------------------------------------------------------------------------------------
3-0572  73/3/21    ATTICA,KANS         GRUMMAN G-164       CR-  0  0  1  COMMERCIAL                COMMERCIAL, FL.INSTR.,
        TIME - 1500                    N646Y               PX-  0  0  0  AERIAL APPLICATION        AGE 25, 863 TOTAL HOURS,
                                       DAMAGE-SUBSTANTIAL  OT-  0  0  0                            89 IN TYPE, INSTRUMENT
                                                                                                   RATED.
        DEPARTURE POINT             INTENDED DESTINATION
          ATTICA,KANS                 LOCAL
        TYPE OF ACCIDENT                                         PHASE OF OPERATION
           STALL: MUSH                                              IN FLIGHT: PROCEDURE TURNAROUND
        PROBABLE CAUSE(S)
           PILOT IN COMMAND - FAILED TO OBTAIN/MAINTAIN FLYING SPEED
         SPECIAL DATA
          TOTAL HOURS IN CROP CONTROL -  125                       KIND OF OPERATION - FERTILIZING (DUST)
          KIND OF CROP - GRAIN FIELDS                              TYPE OF CHEMICAL USED - DRY CHEMICAL-NONTOXIC
          PILOT' S SEAT BELT -FASTENED-PROPERLY                    GLOVES - USED
          GOGGLES - 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 -  1400                SWATH RUN-HOW FLOWN - DOWNWIND
          PROCEDURE TURNAROUND - THIRD 1/3 TURN
        REMARKS- R DNWND TURN AFTR PULL-UP.
```

## Aircraft

- Registration: [N646Y](https://openairdocs.org/deregistered/N646Y-2004-04-12), registration cancelled 2004-04-12, S/N 235, built 1963 (OpenAirDocs)
- Reported make and model: GRUMMAN G-164
- Registry model: [Grumman G-164](https://openairdocs.org/model/grumman-g-164) (registry code 3952702) (OpenAirDocs)
- Registry engine: [Jacobs R755A series](https://openairdocs.org/engine/jacobs-r755a-series) (registry code 35006, reciprocating) (OpenAirDocs)
- Category: Airplane
- Engines: reciprocating
- Damage: Substantial damage

## FAA reports on this event (1)

The FAA's own accident and incident reports, matched to the aircraft by N-number and date (OpenAirDocs).

- [Accident 19730321005559A](https://openairdocs.org/incident/19730321005559A), Mar 21, 1973: Grumav G164, Attica, KS, Substantial damage. R dnwnd turn aftr pull-up.

## Other investigations on N646Y (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 CHI74FET21](https://openairdocs.org/ntsb/CHI74FET21), Jun 4, 1974: Grumman G-164 (N646Y), Sodus, MI, 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.

---
OpenAirDocs.org is an independent research project of [Contrail Labs](https://contraillabs.com/). It is not affiliated with the FAA or the NTSB. Source documents are U.S. government works in the public domain.