STC SE03498AT
FAA DRS lists SE03498AT as Current · Reissued, held by Air Plains Services Corporation, for Lycoming Engines IO-540-D4B5. Recorded change: Conversion of Lycoming IO-540-D4B5 to Alamo Aerospace Model IO-540-D4B5-AA that has the same performance ratings and limitations as Lycoming Model IO-540-D4B5. Snapshot dated June 30, 2026.
Recorded modification
What the FAA record covers
Conversion of Lycoming IO-540-D4B5 to Alamo Aerospace Model IO-540-D4B5-AA that has the same performance ratings and limitations as Lycoming Model IO-540-D4B5.
SE03498AT 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: Lycoming Engines IO-540-D4B5. Confirm the approved model list, serial effectivity, configuration, and certificate revision.
Buyer checks
Confirm before sourcing
- 01Does it cover the exact Lycoming Engines IO-540-D4B5 model, serial range, and configuration?
- 02Which limits, loading assumptions, performance data, and supplements apply?
- 03Who can legally supply the design data, kit, instructions, and ICAs?
- 04What parts, labor, conformity, and return-to-service work are excluded?
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