- Registered owner
- Muehlberg Stephen E
- Location
- Newcastle, OK
- Owner type
- Individual
- Serial number
- 011
- Year built
- 2018
- Type
- Fixed wing single engine
- Engine
- Reciprocating
- Airworthiness
- Experimental, amateur built
- Airworthiness date
- December 6, 2018
- Certificate issued
- January 18, 2018
- Expires
- January 31, 2028
- Mode S code
- A02B35
- Kit
- Sport Performance Aviation LLC PANTHER LS
From the FAA registry file of October 24, 2026.
On this page
Airworthiness directives that may apply · 15
Matched by this aircraft’s airframe and engine models. Each AD’s applicability may narrow it by serial number, part number or equipment.
| 1969 | 2 |
|---|---|
| 1977 | 1 |
| 1980 | 1 |
| 1981 | 1 |
| 1982 | 1 |
| 1991 | 1 |
| 1993 | 1 |
| 1996 | 2 |
| 1998 | 2 |
| 2004 | 1 |
| 2012 | 1 |
| 2024 | 1 |
| 2026 | 2 |
See all 17 ADs
Information bulletins that may apply · 3
Advisory, not mandatory.
NTSB investigations
No NTSB investigations matched to N11PXMatched 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 Muehlberg Stephen E PANTHER LS aircraft
FAA incident reports
No FAA accident or incident reports matched to N11PXMatched 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 Muehlberg Stephen E PANTHER LS aircraft
Service difficulty reports
No reports matched to N11PXGeneral 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 Muehlberg Stephen E PANTHER LS aircraft
STCs that may be installed · 32
Approved for this aircraft’s airframe or engine model. The registry doesn’t record which STCs an aircraft has; its records do.
Engine · Lycoming O-235-C1
STC SE04651CHTo allow use of l00R grade aviation fuel meeting Swift Fuel, LLC specification SPEC-l00R-22STC SE00825WIInstallation of Specialty Products Spin-on oil filter on Lycoming Engines.STC SE2932SWInstall carburetor air temperature indicator. Approved for Aircooled Motors (Franklin Engine Co.) equipped with float carburetors. Model eligibility included here may not be inclusive.
Earlier aircraft with this N-number · 2
These aircraft carried N11PX before the one registered now. The FAA can assign a mark to another aircraft once a registration is cancelled.