# Incident 20010601012539I: Airtrc AT602, Trinidad, CO, June 1, 2001

- Type: FAA incident report (Accident/Incident Data System), as reported
- Date: June 1, 2001, 15:30 local time
- Place: Trinidad, CO
- Phase of flight: Normal Cruise
- Operating rules: General operating rules (Part 91)
- Location: 37.1762° N, 104.4903° W: Placed by OpenAirDocs: center of Trinidad, CO, within about 6 miles (OpenAirDocs)
- Nearby events: https://openairdocs.org/map.md?lat=37.1762&lon=-104.4903&mi=10
- Aircraft: N5111A, registered now (https://openairdocs.org/aircraft/N5111A) (OpenAirDocs)
- Registry model: Air Tractor AT-602 (registry code 0390309, https://openairdocs.org/model/air-tractor-at-602) (OpenAirDocs)
- Registry engine: Pratt & Whitney Canada PT6A-66 series (registry code 52118, https://openairdocs.org/engine/pratt-whitney-canada-pt6a-66-series) (OpenAirDocs)
- Reported make and model: AIRTRC AT602
- Reported engine: PWA PT6A65AR
- People aboard: 1
- Fatal injuries: 0
- Pilot flight hours: 10,099 total, 1,950 in this make and model, 20 in the last 90 days
- FAA source: FAA Aviation Safety Information Portal (https://asip.faa.gov/)
- Page: https://openairdocs.org/incident/20010601012539I

## Narrative

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

(-23) DURING CRUISE THE PILOT NOTED FUEL PRESSURE DROPPED TO ZERO AND TURNED ON THE ELECTRIC PUMP. HOWEVER THIS CAUSED MORE SMOKE TO BE OBSERVED COMING OUT OF THE ENGINE AND HE TURNED OFF BOOST PUMP. OIL PRESSURE STARTED DROPPING OFF AND NO POWER WAS BEING DEVELOPED.  AT APPROXIMATELY 500 FEET ABOVE THE GROUND, THE ENGINE SEIZED.  OFF-FIELD LANDING WAS MADW WITHOUT INCIDENT.  SUBSEQUENT INSPECTION REVEALED A PLAIN NUT HAD BACKED OFF IN THE SCAVENGE PUMP HOUSING ASSEMBLY AND JAMMED THE OIL PUMP GEARS.  PRATT & WHITNEY SB NO. 13321 WARNS OF THIS POSSIBILITY AND RECOMMENDS MODIFICATION BY THE INSTALLATION OF SELF-LOCKING NUTS.  THE SERVICE BULLETIN WAS CLASSIFIED AS "CATEGORY 8" AND IS OPTIONAL COMPLIANCE.  MAINTENANCE PERSONNEL STATED THAT MOST LOCKING WASHERS WITH THE BENT TAB AROUND THE PLAIN NUTS WERE NOT DONE WITH GOOD QUALITY AND COULD HAVE BEEN INSTALLED BETTER BY MANUFACTURE'S PERSONNEL.

## Other reports on N5111A (1)

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

- [Accident 20000927013989A](https://openairdocs.org/incident/20000927013989A), Sep 27, 2000: Airtrc AT602 (N5111A), Rock Island, WA, No damage. (-23) A/c struck static wire of high voltage transmission lines during aerial application operations. Pilot was conducting pullup manuever after swath run when…

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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