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Aircraft structures

STC SA3-111

FAA DRS lists SA3-111 as Current · Reissued, held by Forrest Alan Frazier, for Piper Aircraft J3C-65 (Army L-4; L-4A; L-4B (Navy NE-1); L-4H; L-4J (Navy NE-2)). Recorded change: Removed 18 from the outboard end of each wing. Removed the first rib inboard of bow, and also the bow. Manufactured from .032 24ST al. Alloy sheet, a full size rib, installed on wing in place of the rib removed. Manufactured skin from .025 24ST and installed on wing, fastened to the first and second rib with #4 sheet metal screws. Three 4 lightning holes were cut in the new rib for inspection purposes and 8-32 nutplates were riveted to inside of rib for attaching of tip plate. The outboard ends of the ailerons were modified to conform to the chord length of the wing. The completed assembly is fabric covered upon covering of wing. The material for the Tip Plate is Prestwood T. and protrudes in a chordwise manner 1-3/4 . Snapshot dated June 30, 2026.

FAA-listed holder
Forrest Alan Frazier
Aircraft configurations
1
FAA revision date
FAA status
Current · Reissued

Recorded modification

What the FAA record covers

Removed 18 from the outboard end of each wing. Removed the first rib inboard of bow, and also the bow. Manufactured from .032 24ST al. Alloy sheet, a full size rib, installed on wing in place of the rib removed. Manufactured skin from .025 24ST and installed on wing, fastened to the first and second rib with #4 sheet metal screws. Three 4 lightning holes were cut in the new rib for inspection purposes and 8-32 nutplates were riveted to inside of rib for attaching of tip plate. The outboard ends of the ailerons were modified to conform to the chord length of the wing. The completed assembly is fabric covered upon covering of wing. The material for the Tip Plate is Prestwood T. and protrudes in a chordwise manner 1-3/4 .

SA3-111 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 J3C-65 (Army L-4; L-4A; L-4B (Navy NE-1); L-4H; L-4J (Navy NE-2)). Confirm the approved model list, serial effectivity, configuration, and certificate revision.

Piper Aircraft J3C-65 (Army L-4; L-4A; L-4B (Navy NE-1); L-4H; L-4J (Navy NE-2))A-691

Buyer checks

Confirm before sourcing

  1. 01Does it cover the exact Piper Aircraft J3C-65 (Army L-4; L-4A; L-4B (Navy NE-1); L-4H; L-4J (Navy NE-2)) model, serial range, and configuration?
  2. 02Which configuration, loads, materials, inspections, and damage 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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