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Engine and powerplant

STC SA3777NM

FAA DRS lists SA3777NM as Current · Amended, held by Vazar Inc, for Bombardier DHC-3. Recorded change: Installation of Pratt and Whitney PT6A-135 engine, Hartzell HC-B3TN-3C/T10282 constant speed propeller and other associated changes. (OTTER DHC-3 (U-1A) normal category landplane only). Snapshot dated June 30, 2026.

FAA-listed holder
Vazar Inc
Aircraft configurations
1
FAA revision date
FAA status
Current · Amended

Recorded modification

What the FAA record covers

Installation of Pratt and Whitney PT6A-135 engine, Hartzell HC-B3TN-3C/T10282 constant speed propeller and other associated changes. (OTTER DHC-3 (U-1A) normal category landplane only).

SA3777NM 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: Bombardier DHC-3. Confirm the approved model list, serial effectivity, configuration, and certificate revision.

Bombardier DHC-3A-815

Buyer checks

Confirm before sourcing

  1. 01Does it cover the exact Bombardier DHC-3 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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