# Accident 20030331005589A: Airtrc AT401, Knox, IN, March 31, 2003

- Type: FAA accident report (Accident/Incident Data System), as reported
- Date: March 31, 2003, 14:23 local time
- Place: Knox, IN
- Damage: Substantial damage
- Phase of flight: Fcd/Prec Ldg From Cruise
- Operating rules: General operating rules (Part 91)
- Location: 41.1897° N, 86.6069° W: From the FAA
- Nearby events: https://openairdocs.org/map.md?lat=41.1897&lon=-86.6069&mi=10
- Aircraft: N45297, a cancelled registration (https://openairdocs.org/deregistered/N45297-2015-07-17) (OpenAirDocs)
- Registry model: Air Tractor AT-401 (registry code 0390204, https://openairdocs.org/model/air-tractor-at-401) (OpenAirDocs)
- Registry engine: Pratt & Whitney R1340 series (registry code 52016, https://openairdocs.org/engine/pratt-whitney-r1340-series) (OpenAirDocs)
- Reported make and model: AIRTRC AT401
- Reported engine: PWA R1340*
- People aboard: 1
- Fatal injuries: 0
- Pilot flight hours: 9,890 total, 800 in this make and model, 2 in the last 90 days
- NTSB investigation: [NTSB CHI03LA095](https://openairdocs.org/ntsb/CHI03LA095) (OpenAirDocs)
- FAA source: FAA Aviation Safety Information Portal (https://asip.faa.gov/)
- Page: https://openairdocs.org/incident/20030331005589A

## Narrative

As the FAA filed it, in capitals; the FAA replaces private details with ^PRIVACY DATA OMITTED^.

(-23) PILOT WAS FLIGHT TESTING AIRCRAFT AFTER NEW ENGINE WAS INSTALLED. PILOT REPORTED LOSS OF OIL PRESSURE AND ENGINE POWER. A/C LANDED IN CORN FIELD AND FLIPPED OVER ON ITS BACK. PILOT RECEIVED MINOR INJURIES AND AIRCRAFT WAS SUBSTANTIALLY DAMAGED.

## The NTSB's investigation of this event (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 CHI03LA095](https://openairdocs.org/ntsb/CHI03LA095), Mar 31, 2003: Air Tractor AT-401 (N45297), Knox, IN, substantial damage. Probable cause: A loss of engine power due to oil starvation as a result of the failure of the master rod bearing. Contributing factors were the tree line at the edge of the field, and the unsuitable terrain.

## Other reports on N45297 (2)

Matched to the same aircraft by N-number and date.

- [Accident 20100721039479A](https://openairdocs.org/incident/20100721039479A), Jul 21, 2010: Air Tractor AT-401 (N45297), Bradford, IL, Substantial damage. During aerial application the aircraft lost power at approximetly 200-300 feet AGL. The pilot was able to maneuver the aircraft to an unidentified airstrip…
- [Accident 19940801019969A](https://openairdocs.org/incident/19940801019969A), Aug 1, 1994: Airtrc AT401 (N45297), Mcgehee, AR, Substantial damage. Engine lost power flying to another spray field. Ground looped in cotton turn row. Blower bearing failure.

From the FAA Accident/Incident Data System. Reports are matched to registry aircraft by N-number and event date, checked against the reported make and model; the registry's history has gaps, so older matches can be wrong. Compare the reported make and model. For accidents, the NTSB's own investigation is the fuller record.

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