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Engine and powerplant

STC SA3767WE

FAA DRS lists SA3767WE as Current · Reissued, held by Thrush Aircraft Inc., for Ayres S-2R. Recorded change: Installation of 500 gallon fiberglass hopper and relocated oil cooler in accordance with FAA sealed Serv-Aero Engineering, Inc. Master Drawing List No. MDL 83178, dated October 26, 1978, or later FAA approved revision. P & W PT6A-34 engine installed per STC SA3238WE and FAA approved Serv-Aero Airplane Flight Manual dated October 26, 1978, are required with this installation. (S2R RESTRICTED CATEGORY). Snapshot dated June 30, 2026.

FAA-listed holder
Thrush Aircraft Inc.
Aircraft configurations
1
FAA revision date
FAA status
Current · Reissued

Recorded modification

What the FAA record covers

Installation of 500 gallon fiberglass hopper and relocated oil cooler in accordance with FAA sealed Serv-Aero Engineering, Inc. Master Drawing List No. MDL 83178, dated October 26, 1978, or later FAA approved revision. P & W PT6A-34 engine installed per STC SA3238WE and FAA approved Serv-Aero Airplane Flight Manual dated October 26, 1978, are required with this installation. (S2R RESTRICTED CATEGORY).

SA3767WE 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: Ayres S-2R. Confirm the approved model list, serial effectivity, configuration, and certificate revision.

Ayres S-2RA4SW

Buyer checks

Confirm before sourcing

  1. 01Does it cover the exact Ayres S-2R model, serial range, and configuration?
  2. 02Which powerplant configuration, limits, instruments, and maintenance data 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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