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Aircraft structures

STC SA00308WI

FAA DRS lists SA00308WI as Current · Reissued, held by Callahan Aircraft Services, for Cessna Aircraft 421. Recorded change: Installation of replacement wing rear spar caps. Snapshot dated June 30, 2026.

FAA-listed holder
Callahan Aircraft Services
Aircraft configurations
1
FAA revision date
FAA status
Current · Reissued

Recorded modification

What the FAA record covers

Installation of replacement wing rear spar caps.

SA00308WI 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: Cessna Aircraft 421. Confirm the approved model list, serial effectivity, configuration, and certificate revision.

Cessna Aircraft 421A7CE

Buyer checks

Confirm before sourcing

  1. 01Does it cover the exact Cessna Aircraft 421 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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