- Registered owner
- Aircraft Trustee Services Inc Trustee
- Location
- Dover, DE
- Owner type
- Corporation
- Serial number
- 504-4005
- Type
- Fixed wing single engine
- Engine
- Turbo-prop
- Airworthiness
- Restricted, agriculture and pest control
- Airworthiness date
- September 18, 2024
- Certificate issued
- March 30, 2026
- Expires
- March 31, 2033
- Mode S code
- A331F7
Air Tractor AT-504TCDS A17SWAirframe · Air Tractor AT-504TCDS E4EAEngine · Pratt & Whitney Canada PT6A-34AG
From the FAA registry file of October 24, 2026.
On this page
Airworthiness directives that may apply · 9
Matched by this aircraft’s airframe and engine models. Each AD’s applicability may narrow it by serial number, part number or equipment.
| 1980 | 1 |
|---|---|
| 1990 | 1 |
| 1997 | 1 |
| 2002 | 1 |
| 2011 | 2 |
| 2014 | 1 |
| 2021 | 1 |
| 2022 | 1 |
Airframe · Air Tractor AT-504
AD 2021-05-14TE flap control systemEngine · Pratt & Whitney Canada PT6A-34AG
AD 2022-08-13Turbine SectionAD 2014-11-05Reinforcement liner to the power turbine (PT) containment ring and, for certain PT containment rings, adding scallopsAD 2011-25-12Sun gearAD 2011-20-51GearsEmergency ADAD 2002-23-13Turbine Exhaust DuctsAD 97-04-12Compressor Bleed-off ValveAD 90-12-05Engine OverhaulAD 80-08-12Fuel Pump Drive Coupling SplinesInformation bulletins that may apply · 5
Advisory, not mandatory.
Airframe · Air Tractor AT-504
SAIB CE-18-06Flight Controls, Rudder Control SystemSAIB CE-16-27Flight Controls, Trailing Edge (TE) Flap Control SystemSAIB CE-11-41Fuselage, Wing Attach FittingsSAIB CE-11-30Aircraft StructuresEngine · Pratt & Whitney Canada PT6A-34AG
SAIB NE-12-04Turbine/ Turboprop Engine: Reduction GearboxNTSB investigations
No NTSB investigations matched to N305ATMatched by N-number and event date, checked against the reported serial number, make and model. Investigations from before this aircraft carried the mark are under Earlier aircraft. Investigations on Air Tractor AT-504 aircraft
FAA incident reports
No FAA accident or incident reports matched to N305ATMatched by N-number and event date, checked against the reported make and model. Reports from before this aircraft carried the mark are under Earlier aircraft. Reports on Air Tractor AT-504 aircraft
Service difficulty reports
No reports matched to N305ATGeneral aviation reporting is voluntary. Matched to this aircraft by N-number and event date, checked against the reported serial number, make and model. Reports on Air Tractor AT-504 aircraft
Reports on N305AT not matched to an aircraft · 3
They name N305AT, but no registry record covers the date, the aircraft registered then was built later, or the report describes another aircraft.
SDR GNB2005F00006Control Cable · wornCABLE BLENDED AT PULLEY. PROBABLE CAUSE, SOFTER NEW STYLE STAINLESS STEEL CABLE MATERIAL. SERVICE LIFE IS ONLY FRACTIONS OF OLD STYLE STEEL CABLES. (K)SDR 20010205CW005Valve Spring · brokenDURNING DETAILED INSPECTION OF LEFT ENGINE, COMPRESSION CHECK OF NR4 CYLINDER REVEALED LOW COMPRESSION. APPROX 80/20, UPON FURTHER INSPECTION THE OUTER SPRING OF THE INTAKE VALVE WAS FOUND TO BE BROKEN.SDR 96ZZZX3917Fitting · crackedWHILE C/W CESSNA SB MEB 95-10, FOUND RT ELEVATOR FITTING CRACKED AT AREA WHERE THE TAPER PIN COMES THROUGH. SUBMITTER SUGGESTS THAT THESE FITTINGS ARE INSPECTED ANYTIME THE TAIL CONE IS REMOVED.
STCs that may be installed · 42
Approved for this aircraft’s airframe or engine model. The registry doesn’t record which STCs an aircraft has; its records do.
Airframe · Air Tractor AT-504
Earlier aircraft with this N-number · 1
This aircraft carried N305AT before the one registered now. The FAA can assign a mark to another aircraft once a registration is cancelled.