# NTSB FTW87DPJ02: Air Tractor AT-302, N8864S, Colony, OK, February 11, 1987

- Type: NTSB accident investigation
- Classification: Accident · Serious injuries · Final report
- Date: February 11, 1987, 16:15 local (22:15 UTC)
- Place: Colony, OK
- Coordinates: 35.300987, -98.550292 (estimated)
- Nearby events: https://openairdocs.org/map.md?lat=35.3010&lon=-98.5503&mi=10
- Phase of flight: [Maneuvering](https://openairdocs.org/ntsb-phases/450) (OpenAirDocs' grouping)
- Highest injury: Serious injuries
- Injuries: 1 serious
- Status: Completed, report March 10, 1988
- Report: Approved by Office Director
- NTSB case key (mKey): 22174
- NTSB case page: https://web.ntsb.gov/investigations/?ntsbnumber=FTW87DPJ02
- NTSB report (PDF, downloads): https://data.ntsb.gov/carol-repgen/api/Aviation/ReportMain/GenerateNewestReport/22174/pdf
- Page: https://openairdocs.org/ntsb/FTW87DPJ02

## Sequence of events

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

- Loss of engine power(total) - mech failure/malf, maneuvering - aerial application
  - engine assembly,bearing - disintegrated (cause)
  - turboshaft engine,gas generator - failure,total (cause)
- Forced landing, descent - emergency
  - emergency procedure - attempted, pilot in command (contributing factor)
  - load jettison - performed, pilot in command
- In flight collision with terrain/water, landing
  - terrain condition - wet (contributing factor)

## Analysis

DURING A DOWNWIND SWATH RUN THE NUMBER ONE COMPRESSOR BEARING FAILED IN THE LTP 101-600-1A ENGINE WHICH RESULTED IN THE ENGINE FAILING COMPLETELY. DURING AN ATTEMPT TO TURN INTO THE WIND FOR AN EMERGENCY LANDING THE LEFT WING TIP STRUCK THE GROUND AND THE AIRCRAFT RECEIVED SUBSTANTIAL DAMAGE.

## Aircraft

- Registration: [N8864S](https://openairdocs.org/aircraft/N8864S), registered now, S/N 302-0218, built 1979 (OpenAirDocs)
- Reported make and model: AIR TRACTOR AT-302
- Registry model: [Air Tractor AT-301](https://openairdocs.org/model/air-tractor-at-301) (registry code 0390103) (OpenAirDocs)
- Registry engine: [Orenda OE600A](https://openairdocs.org/engine/orenda-oe600a) (registry code 47911, reciprocating) (OpenAirDocs)
- Category: Airplane
- Serial number: 302-0218
- Airframe hours: 1408
- Engines: LYCOMING LTP101-600A1A 599 horsepower reciprocating
- Damage: Substantial damage
- Flight: Aerial application, Part 137
- Operator: Allin Lawerence, doing business as A & L Aerial Spraying,Inc.
- Registered owner: A & L Aerial Spraying, Inc.
- Airworthiness certificate: Special, Restricted (Special)
- Last inspection: Annual, March 30, 1985, 282 hours before
- Departed: PVT, EAKLY, OK

## Flight crew

As NTSB recorded them. NTSB leaves out names.

- Pilot; age 42; commercial; airplane ratings: single-engine land; medical: class 2, invalid medical for flight; seat: center; flight hours: 6,200 total, 800 in this make and model, 5,800 as pilot in command, 50 in the last 90 days, 8 in the last 30 days, 2 in the last 24 hours

## Weather

- Conditions: Visual (VMC), Day
- Lowest ceiling: none
- Temperature: -0 °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 19870211002689A](https://openairdocs.org/incident/19870211002689A), Feb 11, 1987: Airtrc AT302, Colony, OK, Substantial damage. The engine failed during agricultural spray operations. Front bearing failure.

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.

---
OpenAirDocs.org is an independent research project of [Contrail Labs](https://contraillabs.com/). It is not affiliated with the FAA or the NTSB. Source documents are U.S. government works in the public domain.