# NTSB DEN83FTE12: Piper PA-25-260, N7606Z, Lamar, CO, August 31, 1983

- Type: NTSB accident investigation
- Classification: Accident · Serious injuries · Final report
- Date: August 31, 1983, 08:15 local (14:15 UTC)
- Place: Lamar, CO
- Coordinates: 38.079555, -102.610343 (estimated)
- Nearby events: https://openairdocs.org/map.md?lat=38.0796&lon=-102.6103&mi=10
- Phase of flight: [Maneuvering](https://openairdocs.org/ntsb-phases/450) (OpenAirDocs' grouping)
- Highest injury: Serious injuries
- Injuries: 1 serious
- Status: Completed
- Report: Approved by Office Director
- NTSB case key (mKey): 16015
- NTSB case page: https://web.ntsb.gov/investigations/?ntsbnumber=DEN83FTE12
- NTSB report (PDF, downloads): https://data.ntsb.gov/carol-repgen/api/Aviation/ReportMain/GenerateNewestReport/16015/pdf
- Page: https://openairdocs.org/ntsb/DEN83FTE12

## 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
  - altitude - inadequate, pilot in command (cause)

## Analysis

THE ACFT COLLIDED WITH THE GROUND DURING AN AERIAL APPLICATION MANEUVER. THE PILOT STATED THAT HE FINISHED THE SECOND SPRAY RUN AND WHILE IN A TURN THE ACFT HIT THE GROUND ON FLAT TERRAIN. THE PILOT STATED THAT HE DID NOT REMEMBER ANYMOREABOUT THE FLT. A FUEL SPILL FIRE STARTED AFTER THE CRASH. THE CHEMICAL SPILL FROM THE RUPTURED HOPPER EXTINGUISHED THE BLAZE.

## Aircraft

- Registration: [N7606Z](https://openairdocs.org/deregistered/N7606Z-1986-09-10), registration cancelled 1986-09-10, S/N 25-3703 (OpenAirDocs)
- Reported make and model: PIPER PA-25-260
- Registry model: [Piper PA-25-235](https://openairdocs.org/model/piper-pa-25-235) (registry code 7102504) (OpenAirDocs)
- Category: Airplane
- Serial number: 25-3703
- Airframe hours: 5335
- Engines: LYCOMING O-540-G1A5 260 horsepower reciprocating
- Damage: Substantial damage
- Fire: On-Ground
- Flight: Aerial application, Part 137
- Registered owner: Allen H. Thinnes
- Airworthiness certificate: Special, Restricted (Special)
- Last inspection: Annual, February 18, 1983, 215 hours before
- Departed: LAA, LAMAR, CO
- Airport: LAA, Lamar

## Flight crew

As NTSB recorded them. NTSB leaves out names.

- Pilot; age 24; commercial; airplane ratings: single-engine land, multi-engine land; instrument ratings: airplane; medical: class 1, valid medical--no waivers/lim.; seat: center; flight hours: 3,800 total, 97 in this make and model, 250 as pilot in command, 11 in the last 90 days, 116 in the last 30 days, 5 in the last 24 hours

## Weather

- Conditions: Visual (VMC), Day
- Wind: 270° at 1 knots
- Visibility: 5 statute miles
- Lowest ceiling: none
- Temperature: 70 °F

## 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 19830831045629A](https://openairdocs.org/incident/19830831045629A), Aug 31, 1983: Piper PA25260, Lamar, CO, Substantial damage. Pilot flew aircraft into ground. Pilot could not remember details of accident.

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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