- Owner type
- Individual
- Serial number
- 409SK
- Year built
- 2025
- Type
- Fixed wing single engine
- Engine
- Reciprocating
- Airworthiness
- Experimental, amateur built
- Airworthiness date
- June 18, 2025
- Certificate issued
- April 14, 2025
- Expires
- April 30, 2032
- Mode S code
- A9B700
- Kit
- Airplane Factory Inc SLING TSI
From the FAA registry file of October 24, 2026.
On this page
Airworthiness directives that may apply · 0
Matched by this aircraft’s airframe and engine models. Each AD’s applicability may narrow it by serial number, part number or equipment.
No ADs matched this aircraft’s modelsADs on appliances, propellers and installed equipment aren’t matched by model; check those separately.
Information bulletins that may apply
Advisory, not mandatory.
No bulletins matched this aircraft’s models
NTSB investigations
No NTSB investigations matched to N725KMatched 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 Titus J Koehn SLING TSI aircraft
FAA incident reports
No FAA accident or incident reports matched to N725KMatched 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 Titus J Koehn SLING TSI aircraft
Service difficulty reports
No reports matched to N725KGeneral 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 Titus J Koehn SLING TSI aircraft
Reports on N725K not matched to an aircraft · 2
They name N725K, but no registry record covers the date, the aircraft registered then was built later, or the report describes another aircraft.
SDR 96ZZZX964Reverser · malfunctionUPON LANDING, THRUST REVERSER FAILED TO STOW ALL THE WAY, PILOT TRIED TO CYCLE T/R SEVERAL TIMES WITH NO SUCCESS, CAUSING MORE DAMAGE. APPEARS BLOCKER DOORS DID NOT GET CLOSED ALL THE WAY BEFORE STOWING AND CAUGHT ON LIP OF THE T/R STRUCTURE.SDR 95ZZZX2449Valve · failedTEMPERATURE CONTROL VALVE DIAPHRAGM RUPTURED CAUSING DAMAGE TO DIAPHRAGM BODY AND SEVERING ACTUATING LINKAGE. AIRCRAFT WAS PREPARING FOR DEPARTURE WITH NO CONTROL OF COCKPIT HEAT. HEAT WAS FULL HOT. VALVE WAS REPLACED AND A CONTROL PRESSURE CHECK WAS C/W.
STCs that may be installed
No STCs matched this aircraft’s modelsSTCs change type-certificated designs, and this aircraft isn’t type certificated.
Earlier aircraft with this N-number · 1
This aircraft carried N725K before the one registered now. The FAA can assign a mark to another aircraft once a registration is cancelled.