Owner type
Individual
Serial number
S1SS-4
Year built
2019
Type
Fixed wing single engine
Engine
Reciprocating
Airworthiness
Experimental, amateur built
Airworthiness date
May 13, 2020
Certificate issued
November 12, 2025
Expires
November 30, 2032
Mode S code
A2A625

From the FAA registry file of October 24, 2026. The registry lists only the engine series, so ADs for every Superior IO-360 model are included below.

On this page

Airworthiness directives that may apply · 3

Matched by this aircraft’s airframe and engine models. Each AD’s applicability may narrow it by serial number, part number or equipment.

2008In forceSuperseded2026
ADs by the year they took effect: 5 ADs
20081
20091
20111
20121
20211
Superseded and historical ADs · 3

Information bulletins that may apply · 1

Advisory, not mandatory.

NTSB investigations

No NTSB investigations matched to N27WPMatched 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 William M Oprendek PITTS S1S aircraft

FAA incident reports

No FAA accident or incident reports matched to N27WPMatched 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 William M Oprendek PITTS S1S aircraft

Service difficulty reports

No reports matched to N27WPGeneral 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 William M Oprendek PITTS S1S aircraft
Reports on N27WP not matched to an aircraft · 2

They name N27WP, but no registry record covers the date, the aircraft registered then was built later, or the report describes another aircraft.

STCs that may be installed · 4

Approved for this aircraft’s airframe or engine model. The registry doesn’t record which STCs an aircraft has; its records do.

Earlier aircraft with this N-number · 1

This aircraft carried N27WP before the one registered now. The FAA can assign a mark to another aircraft once a registration is cancelled.