- Registered owner
- Digger Doug'S Crop Dusting Service Inc
- Location
- Hollandale, WI
- Owner type
- Corporation
- Serial number
- 504-4042
- Year built
- 2022
- Type
- Fixed wing single engine
- Engine
- Turbo-prop
- Airworthiness
- Restricted, agriculture and pest control, forest
- Airworthiness date
- March 28, 2022
- Certificate issued
- November 3, 2022
- Expires
- November 30, 2029
- Mode S code
- A6491B
From the FAA registry file of October 24, 2026. The registry lists only the engine series, so ADs for every Pratt & Whitney PT6A model are included below.
On this page
Airworthiness directives that may apply · 27
Matched by this aircraft’s airframe and engine models. Each AD’s applicability may narrow it by serial number, part number or equipment.
| 1968 | 1 |
|---|---|
| 1969 | 1 |
| 1970 | 1 |
| 1975 | 1 |
| 1977 | 1 |
| 1978 | 2 |
| 1980 | 2 |
| 1986 | 1 |
| 1990 | 1 |
| 1992 | 1 |
| 1994 | 1 |
| 1995 | 1 |
| 1997 | 1 |
| 2001 | 1 |
| 2002 | 1 |
| 2005 | 1 |
| 2011 | 2 |
| 2012 | 1 |
| 2014 | 2 |
| 2015 | 1 |
| 2016 | 1 |
| 2021 | 1 |
| 2022 | 1 |
| 2024 | 1 |
Airframe · Air Tractor AT-504
AD 2021-05-14TE flap control systemEngine · Pratt & Whitney PT6A series
AD 2024-04-51Turbine SectionEmergency ADAD 2022-08-13Turbine SectionInformation bulletins that may apply · 9
Advisory, not mandatory.
NTSB investigations
No NTSB investigations matched to N504DDMatched 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 N504DDMatched 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 N504DDGeneral 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
STCs that may be installed · 86
Approved for this aircraft’s airframe or engine model. The registry doesn’t record which STCs an aircraft has; its records do.