# NTSB MIA74DKA11: Grumman G-164, N10398, Ponce, PR, September 13, 1973

- Type: NTSB accident investigation
- Classification: Accident · No injuries · Closed
- Date: September 13, 1973
- Place: Ponce, PR · PONCE,PR, PR
- Location: 17.9997° N, 66.6237° W: Placed by OpenAirDocs: center of Ponce, PR, within about 6 miles (OpenAirDocs)
- Nearby events: https://openairdocs.org/map.md?lat=17.9997&lon=-66.6237&mi=10
- Phase of flight: [Taxi](https://openairdocs.org/ntsb-phases/250) (OpenAirDocs' grouping)
- Highest injury: No injuries
- Injuries: 1 uninjured
- Status: Completed, report July 3, 1974
- Report: Brief approved by the director
- NTSB case key (mKey): 187718
- NTSB case page: https://web.ntsb.gov/investigations/?ntsbnumber=MIA74DKA11
- Page: https://openairdocs.org/ntsb/MIA74DKA11

## NTSB brief

```
----------------------------------------------------------------------------------------------------------------------------
 FILE    DATE          LOCATION          AIRCRAFT DATA       INJURIES       FLIGHT                        PILOT DATA
                                                               F  S M/N     PURPOSE
----------------------------------------------------------------------------------------------------------------------------
3-4160  73/9/13    PONCE,PR            GRUMMAN G-164       CR-  0  0  1  COMMERCIAL                COMMERCIAL, AGE 45, 7305
        TIME - 0900                    N10398              PX-  0  0  0  ASSOC CROP CTL ACTIVITY   TOTAL HOURS, 7000 IN
                                       DAMAGE-SUBSTANTIAL  OT-  0  0  0                            TYPE, NOT INSTRUMENT
                                                                                                   RATED.
        DEPARTURE POINT             INTENDED DESTINATION
          PONCE,PR                    LOCAL
        TYPE OF ACCIDENT                                         PHASE OF OPERATION
           COLLIDED WITH: WIRES/POLES                               TAXI: FROM LANDING
        PROBABLE CAUSE(S)
           TERRAIN - HIDDEN OBSTRUCTIONS
        FACTOR(S)
           TERRAIN - HIGH OBSTRUCTIONS
         SPECIAL DATA
          TOTAL HOURS IN CROP CONTROL - 7305                       KIND OF OPERATION - SPRAYING CROPS
          KIND OF CROP - OTHER                                     TYPE OF CHEMICAL USED - LIQUID CHEMICAL-TOXIC
          PILOT' S SEAT BELT -UNKNOWN/NOT REPORTED                 GLOVES - NOT USED
          CRASH HELMET - AVAILABLE USED                            COCKPIT CRASHPAD - NOT INSTALLED
          CRASH BAR - INSTALLED                                    TANK/HOPPER-LOCATION - AFT OF PILOT
          TERRAIN-TYPE -LEVEL,FLAT                                 ELEVATION-AREA BEING TREATED-FEET -  29
        REMARKS- ONE MAIN GR STRUCK HOLE.ACFT CHANGED DIRECTION AND WING STRUCK POLE.
```

## Aircraft

- Registration: [N10398](https://openairdocs.org/deregistered/N10398-1976-05-25), registration cancelled 1976-05-25, S/N 90 (OpenAirDocs)
- Reported make and model: GRUMMAN G-164
- Registry model: [Grumman G-164](https://openairdocs.org/model/grumman-g-164) (registry code 3952702) (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 19730913042889A](https://openairdocs.org/incident/19730913042889A), Sep 13, 1973: Grumav G164, Ponce, Puerto Rico, Substantial damage. One main gr struck hole. Acft changed direction and wing struck pole.

## Other investigations on N10398 (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 MIA70F0114](https://openairdocs.org/ntsb/MIA70F0114), Aug 12, 1969: Grumman G-164 (N10398), Juncos, PR, 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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