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Engine and powerplant

STC SA01905CH

FAA DRS lists SA01905CH as Current · Issued, held by Larson AG, for Thrush Aircraft S-2R. Recorded change: Replacement of an existing Pratt and Whitney model 1340 S3H1 engine and Hamilton Standard Model 12D40 propeller with a Pratt and Whitney model 1340 S3H1-G engine and Hamilton Standard Model 3D40 Propeller. Limited to installation on serial number 1541R ONLY. Snapshot dated June 30, 2026.

FAA-listed holder
Larson AG
Aircraft configurations
1
FAA revision date
FAA status
Current · Issued

Recorded modification

What the FAA record covers

Replacement of an existing Pratt and Whitney model 1340 S3H1 engine and Hamilton Standard Model 12D40 propeller with a Pratt and Whitney model 1340 S3H1-G engine and Hamilton Standard Model 3D40 Propeller. Limited to installation on serial number 1541R ONLY.

SA01905CH 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: Thrush Aircraft S-2R. Confirm the approved model list, serial effectivity, configuration, and certificate revision.

Thrush Aircraft S-2RA4SW

Buyer checks

Confirm before sourcing

  1. 01Does it cover the exact Thrush Aircraft 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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