# NTSB DEN82FTA10: Piper PA-25-235, N4589Y, Glendive, MT, June 1, 1982

- Type: NTSB accident investigation
- Classification: Accident · Serious injuries · Final report
- Date: May 31, 1982, 20:30 local (Jun 1, 1982, 02:30 UTC)
- Place: Glendive, MT
- Location: 47.1065° N, 104.7109° W: Placed by OpenAirDocs: center of Glendive, MT, within about 6 miles (OpenAirDocs)
- Nearby events: https://openairdocs.org/map.md?lat=47.1065&lon=-104.7109&mi=10
- Phase of flight: [Maneuvering](https://openairdocs.org/ntsb-phases/450) (OpenAirDocs' grouping)
- Highest injury: Serious injuries
- Injuries: 1 serious
- Status: Completed, report May 31, 1983
- Report: Approved by Office Director
- NTSB case key (mKey): 70840
- NTSB case page: https://web.ntsb.gov/investigations/?ntsbnumber=DEN82FTA10
- NTSB report (PDF, downloads): https://data.ntsb.gov/carol-repgen/api/Aviation/ReportMain/GenerateNewestReport/70840/pdf
- Page: https://openairdocs.org/ntsb/DEN82FTA10

## Sequence of events

In NTSB's coding before 2008 (https://www.ntsb.gov/GILS/Documents/codman.pdf).

- In flight collision with terrain/water, maneuvering - aerial application
  - weather condition - high density altitude (contributing factor)
  - airspeed - not maintained, pilot in command (cause)
  - stall/mush - inadvertent, pilot in command (cause)
  - load jettison - initiated, pilot in command
  - terrain condition - mountainous/hilly (contributing factor)

## Analysis

THE PILOT REPORTED THAT HE HAD JUST LOADED THE SPRAYER AND HAD MADE ONE PASS DOWNHILL. AT THE END OF THE FIELD, HE STARTED A LEFT TURN TO MAKE AN UPHILL PASS. THE PILOT STATED THAT HE GOT INTO BAD AIR OR DOWN SLOPE AIR AND STARTED TO DUMP THE CHEMICAL BUT IT DID NOT HELP. THE AIRCRAFT STRUCK THE GROUND, AND AFTER CRASHING, IT BEGAN TO BURN. THE ACCIDENT OCCURRED AT DUSK. THE PILOT SUFFERED A BROKEN ANKLE AND FACIAL LACERATIONS. HE REPORTED THAT HE STAYED AT THE CRASH SITE UNTIL THE NEXT MORNING AND THEN GOT TO A HOSPITAL. THE DENSITY ALTITUDE WAS ABOUT 3200 FT.

## Aircraft

- Registration: [N4589Y](https://openairdocs.org/deregistered/N4589Y-2012-07-24), registration cancelled 2012-07-24, S/N 25-4270, built 1967 (OpenAirDocs)
- Reported make and model: PIPER PA-25-235
- Registry model: [Piper PA-25-235](https://openairdocs.org/model/piper-pa-25-235) (registry code 7102504) (OpenAirDocs)
- Registry engine: [Lycoming 0-540 series](https://openairdocs.org/engine/lycoming-0-540-series) (registry code 41532, reciprocating) (OpenAirDocs)
- Category: Airplane
- Serial number: 25-4270
- Engines: LYCOMING O-540 250 horsepower reciprocating
- Damage: Destroyed
- Fire: On-Ground
- Flight: Aerial application, Part 137
- Operator: Irvin Moline
- Registered owner: Irvin Moline
- Departed: GLENDIVE, MT
- Destination: GLENDIVE, MT

## Flight crew

As NTSB recorded them. NTSB leaves out names.

- Pilot; age 37; flight instructor, commercial; airplane ratings: single-engine land; instrument ratings: airplane; medical: class 2, valid medical--no waivers/lim.; flight hours: 1,990 total, 60 in this make and model, 1,357 as pilot in command, 74 in the last 90 days, 4 in the last 24 hours

## Weather

- Conditions: Visual (VMC), Dusk
- Wind: 280° at 5 knots
- Visibility: 20 statute miles

## 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 19820531020309A](https://openairdocs.org/incident/19820531020309A), May 31, 1982: Piper PA25235, Glendive, MT, Destroyed. Aircraft stalled and crashed during procedure turn after first swath run.

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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