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Fuel systems

STC ST00409NY

FAA DRS lists ST00409NY as Current · Reissued, held by Leading Edge Group LLC, The, for McDonnell Douglas DC-9-82 (MD-82), McDonnell Douglas DC-9-81 (MD-81), and McDonnell Douglas DC-9-83 (MD-83). Recorded change: Installation of a two tank auxiliary fuel system in Mid Cargo Compartment. Snapshot dated June 30, 2026.

FAA-listed holder
Leading Edge Group LLC, The
Aircraft configurations
3
FAA revision date
FAA status
Current · Reissued

Recorded modification

What the FAA record covers

Installation of a two tank auxiliary fuel system in Mid Cargo Compartment.

ST00409NY 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: McDonnell Douglas DC-9-82 (MD-82), McDonnell Douglas DC-9-81 (MD-81), and McDonnell Douglas DC-9-83 (MD-83). Confirm the approved model list, serial effectivity, configuration, and certificate revision.

McDonnell Douglas DC-9-82 (MD-82)A6WEMcDonnell Douglas DC-9-81 (MD-81)A6WEMcDonnell Douglas DC-9-83 (MD-83)A6WE

Buyer checks

Confirm before sourcing

  1. 01Does it cover the exact McDonnell Douglas DC-9-82 (MD-82) and McDonnell Douglas DC-9-81 (MD-81), and 1 more aircraft configuration model, serial range, and configuration?
  2. 02Which tanks, plumbing, usable-fuel assumptions, and inspections 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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