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Engine and powerplant

STC ST01920CH

FAA DRS lists ST01920CH as Current · Amended, held by Professional Pilots Inc., for New Piper Aircraft PA-18, New Piper Aircraft PA-18A, and New Piper Aircraft PA-18AS-125, and 5 more aircraft configurations. Recorded change: 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. Snapshot dated June 30, 2026.

FAA-listed holder
Professional Pilots Inc.
Aircraft configurations
8
FAA revision date
FAA status
Current · Amended

Recorded modification

What the FAA record covers

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.

ST01920CH identifies the approval, recorded holder, named aircraft, and modification scope. It does not confirm kit availability, serial-number effectivity, data rights, price, or installation authority.

Applicability

Aircraft named in FAA DRS

Named aircraft: New Piper Aircraft PA-18, New Piper Aircraft PA-18A, and New Piper Aircraft PA-18AS-125, and 5 more aircraft configurations. Confirm the approved model list, serial effectivity, configuration, and certificate revision.

New Piper Aircraft PA-181A2New Piper Aircraft PA-18A1A2New Piper Aircraft PA-18AS-1251A2New Piper Aircraft PA-18AS-1351A2New Piper Aircraft PA-18AS-1501A2New Piper Aircraft PA-18S1A2New Piper Aircraft PA-12A-780New Piper Aircraft PA-12SA-780

Buyer checks

Confirm before sourcing

  1. 01Does it cover the exact New Piper Aircraft PA-18 and New Piper Aircraft PA-18A, and 6 more aircraft configurations model, serial range, and configuration?
  2. 02Which powerplant configuration, limits, instruments, and maintenance data apply?
  3. 03Who can legally supply the design data, kit, instructions, and ICAs?
  4. 04What parts, labor, conformity, and return-to-service work are excluded?

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