ST01919CHPropellers
Installation of Hartzell HC-C2YL-1BF/F8468-4, HC-C2YL-1BF/F8468-6Q, or HC-C2YR-1BF/F8477-4 or HC-C2YR-1N/NG8301 constant speed propeller.
FAA holder: Professional Pilots Inc.
FAA-listed STC holder
Professional Pilots Inc. STCs
The Jun 30, 2026 FAA DRS snapshot lists 9 selected supplemental type certificates with status Current under Professional Pilots Inc.. The records span 46 public aircraft directories and 2 modification categories. This is a research directory, not a claim that any specific kit or service is currently offered.
9
listed Current at snapshot
46
aircraft directories
2
modification categories
Jul 22, 2016
latest recorded revision
Modification mix
Propellers8
Engine and powerplant1
Aircraft represented
Piper Aircraft PA-18-150133 STCsPiper Aircraft PA-18122 STCsPiper Aircraft PA-18-135122 STCsPiper Aircraft PA-18A121 STCsPiper Aircraft PA-18A-150121 STCsPiper Aircraft PA-18-125 (Army L-21A)119 STCsPiper Aircraft PA-18A-135117 STCsPiper Aircraft PA-18AS-150111 STCsPiper Aircraft PA-18-105 (Special)110 STCsPiper Aircraft PA-18AS-135109 STCsPiper Aircraft PA-18S-150107 STCsPiper Aircraft PA-18S103 STCsPiper Aircraft PA-18S-125103 STCsPiper Aircraft PA-18S-135102 STCsPiper Aircraft PA-18S-105 (Special)101 STCsPiper Aircraft PA-18AS-125100 STCsCessna Aircraft 31073 STCsPiper Aircraft PA-28-23547 STCsPiper Aircraft PA-32R-301 (SP)44 STCsNew Piper Aircraft PA-1844 STCs
Recently revised records
Showing the 9 most recently revised records. Category directories provide the complete paginated discovery path.
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SA03321CHPropellers
Installation of Hartzell HC-C2YR-1BFP/F8068, or HC-F2YR-1BFP/F8068 constant speed propeller.
FAA holder: Professional Pilots Inc.
SA02695CHPropellers
Installation of MT-Propeller MTV-9-B/198-52 constant speed propeller in accordance with Professional Pilots Inc. Installation Instructions #SUTN3201MT, dated December 22, 2006, or later FAA approved revision.
FAA holder: Professional Pilots Inc.
SA02555CHPropellers
Installation of Hartzell HC-C2YR-1BFP/F7497 constant speed propeller.
FAA holder: Professional Pilots Inc.
SA02508CHPropellers
Installation of reversible MT-Propeller model MTV-15-B-C-R-(M)/CR210-58 or TV-15-C-C-R-(M)/CR200-50 constant speed propeller.
FAA holder: Professional Pilots Inc.
SA02297CHPropellers
INSTALL MT PROPELLER MODEL MTV-9-D-C/CF198-52 CONSTANT SPEED PROPELLER IAW PROFESSIONAL PILOTS INC INSTALLATION INSTRUCTIONS #SUTN31001 DTD 3/24/06 OR LATER FAA APPROVED REVISION.
FAA holder: PROFESSIONAL PILOTS INC
ST01920CHEngine and powerplant
Installation of modified Grumman AA-5B exhaust system assembly, P/N SUTN201 or P/N SUTN301. Only for those PA-18 series aircraft equipped with Lycoming O-320 or O-360 series engines, whether by original factory installation or by STC.
FAA holder: Professional Pilots Inc.
SA02256CHPropellers
Installation of a Hartzell Propeller model HC-I3Y (scimitar).
FAA holder: Professional Pilots Inc.
SA02087CHPropellers
Installation of MT-Propeller model MTV-15-C/200-50 or MTV-15-B/210-58 constant speed propeller.
FAA holder: Professional Pilots Inc.