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Other aircraft modifications

STC SA11841BO

FAA DRS lists SA11841BO as Current · Issued, held by T3 Tailwheel Suspension System, for Piper Aircraft PA-18, Piper Aircraft PA-18-105 (Special), and Piper Aircraft PA-18-125 (Army L-21A), and 19 more aircraft configurations. Recorded change: Installation of T3 Tailwheel Suspension System suspension. Snapshot dated June 30, 2026.

FAA-listed holder
T3 Tailwheel Suspension System
Aircraft configurations
22
FAA revision date
FAA status
Current · Issued

Recorded modification

What the FAA record covers

Installation of T3 Tailwheel Suspension System suspension.

SA11841BO 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 PA-18, Piper Aircraft PA-18-105 (Special), and Piper Aircraft PA-18-125 (Army L-21A), and 19 more aircraft configurations. Confirm the approved model list, serial effectivity, configuration, and certificate revision.

Piper Aircraft PA-181A2Piper Aircraft PA-18-105 (Special)1A2Piper Aircraft PA-18-125 (Army L-21A)1A2
Piper Aircraft PA-18-135 (Army L-21B)1A2
Piper Aircraft PA-18-1501A2Piper Aircraft PA-18A1A2Piper Aircraft PA-18A-1351A2Piper Aircraft PA-18A-1501A2Piper Aircraft PA-18AS-1251A2Piper Aircraft PA-18AS-1351A2Piper Aircraft PA-18AS-1501A2Piper Aircraft PA-18S1A2Piper Aircraft PA-18S-105 (Special)1A2Piper Aircraft PA-18S-1251A2Piper Aircraft PA-18S-1351A2Piper Aircraft PA-18S-1501A2Piper Aircraft PA-19 (Army L-18C)1A2Piper Aircraft PA-19S1A2Textron Aviation 170A-799Textron Aviation 170AA-799Textron Aviation 170BA-799Regal Air 305A5A5

Buyer checks

Confirm before sourcing

  1. 01Does it cover the exact Piper Aircraft PA-18 and Piper Aircraft PA-18-105 (Special), and 20 more aircraft configurations model, serial range, and configuration?
  2. 02Which configuration, parts, installation data, limitations, and ICAs 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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