# NTSB SEA77FYP45: Piper PA-25, N4566Y, Pasco, WA, September 21, 1977

- Type: NTSB accident investigation
- Classification: Accident · Minor injuries · Closed
- Date: September 21, 1977
- Place: Pasco, WA · PASCO, WA
- Location: 46.2396° N, 119.1006° W: Placed by OpenAirDocs: center of Pasco, WA, within about 6 miles (OpenAirDocs)
- Nearby events: https://openairdocs.org/map.md?lat=46.2396&lon=-119.1006&mi=10
- Phase of flight: [Maneuvering](https://openairdocs.org/ntsb-phases/450) (OpenAirDocs' grouping)
- Highest injury: Minor injuries
- Injuries: 1 minor
- Status: Completed, report November 7, 1977
- Report: Brief approved by the director
- NTSB case key (mKey): 145360
- NTSB case page: https://web.ntsb.gov/investigations/?ntsbnumber=SEA77FYP45
- Page: https://openairdocs.org/ntsb/SEA77FYP45

## NTSB brief

```
----------------------------------------------------------------------------------------------------------------------------
 FILE    DATE          LOCATION          AIRCRAFT DATA       INJURIES       FLIGHT                        PILOT DATA
                                                               F  S M/N     PURPOSE
----------------------------------------------------------------------------------------------------------------------------
3-3105  77/9/21    PASCO,WA            PIPER PA-25         CR-  0  0  1  COMMERCIAL                COMMERCIAL, AGE 56, 5514
        TIME - 0900                    N4566Y              PX-  0  0  0  AERIAL APPLICATION        TOTAL HOURS, 3500 IN
                                       DAMAGE-DESTROYED    OT-  0  0  0                            TYPE, NOT INSTRUMENT
                                                                                                   RATED.
        DEPARTURE POINT             INTENDED DESTINATION
          ELTOPIA,WA                  LOCAL
        TYPE OF ACCIDENT                                         PHASE OF OPERATION
           COLLIDED WITH: WIRES/POLES                               IN FLIGHT: STARTING SWATH RUN
        PROBABLE CAUSE(S)
           PILOT IN COMMAND - FAILED TO SEE AND AVOID OBJECTS OR OBSTRUCTIONS
        FACTOR(S)
           MISCELLANEOUS ACTS,CONDITIONS - PILOT FATIGUE
           TERRAIN - HIGH OBSTRUCTIONS
         SPECIAL DATA
          TOTAL HOURS IN CROP CONTROL - 5000                       KIND OF OPERATION - DEFOLIATION (LIQUID)
          KIND OF CROP - OTHER                                     TYPE OF CHEMICAL USED - LIQUID CHEMICAL-TOXIC
          PILOT' S SEAT BELT -NOT FASTENED                         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 -  1000                SWATH RUN-HOW FLOWN - WIND CALM
         FIRE AFTER IMPACT
        REMARKS- 10HRS FLT IN LAST 24.
```

## Aircraft

- Registration: [N4566Y](https://openairdocs.org/deregistered/N4566Y-1977-11-01), registration cancelled 1977-11-01, S/N 25-4226 (OpenAirDocs)
- Reported make and model: PIPER PA-25
- Registry model: [Piper PA-25-235](https://openairdocs.org/model/piper-pa-25-235) (registry code 7102504) (OpenAirDocs)
- Category: Airplane
- Engines: reciprocating
- Damage: Destroyed

## 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 19770921028089A](https://openairdocs.org/incident/19770921028089A), Sep 21, 1977: Piper PA25235, Pasco, WA, Destroyed. 10HRS flt in last 24.

## Other investigations on N4566Y (2)

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 SEA72FYG31](https://openairdocs.org/ntsb/SEA72FYG31), Mar 16, 1972: Piper PA-25 (N4566Y), Pullman, WA, destroyed
- [NTSB SEA68D0013](https://openairdocs.org/ntsb/SEA68D0013), Jun 12, 1967: Piper PA-25 (N4566Y), Royal City, WA, 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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