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Fuel systems

STC SA7440SW

FAA DRS lists SA7440SW as Current · Reissued, held by Ontic Engineering and Manufacturing Inc., for Boeing DC-9-11, Boeing DC-9-12, and Boeing DC-9-13, and 7 more aircraft configurations. Recorded change: Installation of fuel quantity indicators, fuel quantity repeaters and digital calibration units. Snapshot dated June 30, 2026.

FAA-listed holder
Ontic Engineering and Manufacturing Inc.
Aircraft configurations
10
FAA revision date
FAA status
Current · Reissued

Recorded modification

What the FAA record covers

Installation of fuel quantity indicators, fuel quantity repeaters and digital calibration units.

SA7440SW 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: Boeing DC-9-11, Boeing DC-9-12, and Boeing DC-9-13, and 7 more aircraft configurations. Confirm the approved model list, serial effectivity, configuration, and certificate revision.

Boeing DC-9-11A6WEBoeing DC-9-12A6WEBoeing DC-9-13A6WEBoeing DC-9-14A6WEBoeing DC-9-15A6WEBoeing DC-9-31A6WEBoeing DC-9-32A6WEBoeing DC-9-32FA6WEBoeing DC-9-33FA6WEBoeing DC-9-51A6WE

Buyer checks

Confirm before sourcing

  1. 01Does it cover the exact Boeing DC-9-11 and Boeing DC-9-12, and 8 more aircraft configurations 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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