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Avionics

STC SA1687WE

FAA DRS lists SA1687WE as Current · Reissued, held by United Airlines Inc, for Boeing 727 and Boeing 727C Series. Recorded change: Modify existing Collins Radio Company type FD-109 Flight Director installation to add 'Steering,' 'Airspeed-Hold,' and 'Auto Approach' modes. (727-22). Snapshot dated June 30, 2026.

FAA-listed holder
United Airlines Inc
Aircraft configurations
2
FAA revision date
FAA status
Current · Reissued

Recorded modification

What the FAA record covers

Modify existing Collins Radio Company type FD-109 Flight Director installation to add 'Steering,' 'Airspeed-Hold,' and 'Auto Approach' modes. (727-22).

SA1687WE 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 727 and Boeing 727C Series. Confirm the approved model list, serial effectivity, configuration, and certificate revision.

Boeing 727A3WEBoeing 727C SeriesA3WE

Buyer checks

Confirm before sourcing

  1. 01Does it cover the exact Boeing 727 and Boeing 727C Series model, serial range, and configuration?
  2. 02Which part numbers, software versions, interfaces, and manual changes 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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