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Propellers

STC ST01919CH

FAA DRS lists ST01919CH as Current · Amended, held by Professional Pilots Inc., for Piper Aircraft The New PA-18, Piper Aircraft The New PA-18A, and Piper Aircraft The New PA-18AS-125, and 5 more aircraft configurations. Recorded change: 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. 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 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.

ST01919CH 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: Piper Aircraft The New PA-18, Piper Aircraft The New PA-18A, and Piper Aircraft The New PA-18AS-125, and 5 more aircraft configurations. Confirm the approved model list, serial effectivity, configuration, and certificate revision.

Piper Aircraft The New PA-181A2
Piper Aircraft The New PA-18A1A2
Piper Aircraft The New PA-18AS-1251A2
Piper Aircraft The New PA-18AS-1351A2
Piper Aircraft The New PA-18AS-1501A2
Piper Aircraft The New PA-18S1A2
Piper Aircraft The New PA-121A2
Piper Aircraft The New PA-12S1A2

Buyer checks

Confirm before sourcing

  1. 01Does it cover the exact Piper Aircraft The New PA-18 and Piper Aircraft The New PA-18A, and 6 more aircraft configurations model, serial range, and configuration?
  2. 02Which propeller, governor, spinner, engine, and vibration limits 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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