# NTSB DEN73DTE37: Grumman G-164, N520Y, Joes, CO, October 10, 1972

- Type: NTSB accident investigation
- Classification: Accident · No injuries · Closed
- Date: October 10, 1972
- Place: Joes, CO · JOES, CO
- Location: 39.6596° N, 102.6785° W: Placed by OpenAirDocs: center of Joes, CO, within about 6 miles (OpenAirDocs)
- Nearby events: https://openairdocs.org/map.md?lat=39.6596&lon=-102.6785&mi=10
- Phase of flight: [Maneuvering](https://openairdocs.org/ntsb-phases/450) (OpenAirDocs' grouping)
- Highest injury: No injuries
- Injuries: 1 uninjured
- Status: Completed, report March 8, 1973
- Report: Brief approved by the director
- NTSB case key (mKey): 169094
- NTSB case page: https://web.ntsb.gov/investigations/?ntsbnumber=DEN73DTE37
- Page: https://openairdocs.org/ntsb/DEN73DTE37

## NTSB brief

```
----------------------------------------------------------------------------------------------------------------------------
 FILE    DATE          LOCATION          AIRCRAFT DATA       INJURIES       FLIGHT                        PILOT DATA
                                                               F  S M/N     PURPOSE
----------------------------------------------------------------------------------------------------------------------------
3-2926  72/10/10   JOES,COLO           GRUMMAN G-164       CR-  0  0  1  COMMERCIAL                COMMERCIAL, AGE 47, 7500
        TIME - 1330                    N520Y               PX-  0  0  0  AERIAL APPLICATION        TOTAL HOURS, 3500 IN
                                       DAMAGE-SUBSTANTIAL  OT-  0  0  0                            TYPE, NOT INSTRUMENT
                                                                                                   RATED.
        DEPARTURE POINT             INTENDED DESTINATION
          WRAY,COLO                   LOCAL
        TYPE OF ACCIDENT                                         PHASE OF OPERATION
           ENGINE FAILURE OR MALFUNCTION                            IN FLIGHT: PROCEDURE TURNAROUND
           NOSE OVER/DOWN                                           LANDING: LEVEL OFF/TOUCHDOWN
        PROBABLE CAUSE(S)
           PILOT IN COMMAND - INADEQUATE PREFLIGHT PREPARATION AND/OR PLANNING
           MISCELLANEOUS ACTS,CONDITIONS - WATER IN FUEL
           TERRAIN - ROUGH/UNEVEN
        COMPLETE POWER LOSS - COMPLETE ENGINE FAILURE/FLAMEOUT-1 ENGINE
        EMERGENCY CIRCUMSTANCES - FORCED LANDING OFF AIRPORT ON LAND
         SPECIAL DATA
          TOTAL HOURS IN CROP CONTROL - 5000                       KIND OF OPERATION - SEEDING CROPS
          KIND OF CROP - OTHER                                     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 -  3600                SWATH RUN-HOW FLOWN - UPWIND
          PROCEDURE TURNAROUND - THIRD 1/3 TURN
```

## Aircraft

- Registration: [N520Y](https://openairdocs.org/deregistered/N520Y-2013-08-15), registration cancelled 2013-08-15, S/N 157, built 1962 (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: [Pratt & Whitney R1340 series](https://openairdocs.org/engine/pratt-whitney-r1340-series) (registry code 52016, reciprocating) (OpenAirDocs)
- Category: Airplane
- Engines: reciprocating
- Damage: Substantial damage

## Other investigations on N520Y (3)

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 DFW08LA178](https://openairdocs.org/ntsb/DFW08LA178), Jul 3, 2008: Grumman G-164 (N520Y), Stotesbury, MO, destroyed. Probable cause: Fracture of the engine's number eight cylinder barrel resulting in a loss of engine power. Contributing to the accident was the lack of suitable terrain for a forced landing.
- [NTSB FTW70F0063](https://openairdocs.org/ntsb/FTW70F0063), Jun 23, 1969: Grumman G-164 (N520Y), Kaplan, LA, substantial damage
- [NTSB FTW66D0024](https://openairdocs.org/ntsb/FTW66D0024), May 6, 1965: Grumman G-164 (N520Y), Esterwood, LA, 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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