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Landing gear and brakes

STC SA4-918

FAA DRS lists SA4-918 as Current · Reissued, held by United Airlines Inc, for Boeing DC-8-11, Boeing DC-8-12, and Boeing DC-8-21, and 24 more aircraft configurations. Recorded change: 1. Aircraft wiring in accordance with Douglas Aircraft Co. Service Change #17 (UAL COA-0-1456) to provide an operational Aircraft Flight Data Rrecorder conforming to CAR Amendment 40-6, paragraph 40.208 with the following additions to assure recording of data during takeoff and landing roll: \na.\tRelay to provide automatic start of recording when nose landing gear reaches airborne condition on takeoff.\nb.\tTime delay relay to turn off recorder one minute after nose landing gear reaches "on ground" condition, on landing.\nc.\tInstallation of standard toggle switch on Systems Engineer's Console, to permit Second Officer to turn on recorder at start of takeoff run.\n2. Install Waste King Flight Data Recorder #5424, TSO-C51. Snapshot dated June 30, 2026.

FAA-listed holder
United Airlines Inc
Aircraft configurations
27
FAA revision date
FAA status
Current · Reissued

Recorded modification

What the FAA record covers

1. Aircraft wiring in accordance with Douglas Aircraft Co. Service Change #17 (UAL COA-0-1456) to provide an operational Aircraft Flight Data Rrecorder conforming to CAR Amendment 40-6, paragraph 40.208 with the following additions to assure recording of data during takeoff and landing roll: \na.\tRelay to provide automatic start of recording when nose landing gear reaches airborne condition on takeoff.\nb.\tTime delay relay to turn off recorder one minute after nose landing gear reaches "on ground" condition, on landing.\nc.\tInstallation of standard toggle switch on Systems Engineer's Console, to permit Second Officer to turn on recorder at start of takeoff run.\n2. Install Waste King Flight Data Recorder #5424, TSO-C51.

SA4-918 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-8-11, Boeing DC-8-12, and Boeing DC-8-21, and 24 more aircraft configurations. Confirm the approved model list, serial effectivity, configuration, and certificate revision.

Boeing DC-8-114A25Boeing DC-8-124A25Boeing DC-8-214A25Boeing DC-8-314A25Boeing DC-8-324A25Boeing DC-8-334A25Boeing DC-8-414A25Boeing DC-8-424A25Boeing DC-8-434A25Boeing DC-8-514A25Boeing DC-8-524A25Boeing DC-8-534A25Boeing DC-8-554A25Boeing DC-8-614A25Boeing DC-8-61F4A25Boeing DC-8-624A25Boeing DC-8-62F4A25Boeing DC-8-634A25Boeing DC-8-63F4A25Boeing DC-8-714A25Boeing DC-8-71F4A25Boeing DC-8-724A25Boeing DC-8-72F4A25Boeing DC-8-734A25Boeing DC-8-73F4A25Boeing DC-8F-544A25Boeing DC-8F-554A25

Buyer checks

Confirm before sourcing

  1. 01Does it cover the exact Boeing DC-8-11 and Boeing DC-8-12, and 25 more aircraft configurations model, serial range, and configuration?
  2. 02Which gear, wheel, brake, tire, and hydraulic configurations 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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