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Fuel systems

STC SA4840NM

FAA DRS lists SA4840NM as Current · Amended, held by Basler Turbo Conversions Inc., for Boeing DC3C-R-1830-90C, Boeing DC3C-S1C3G, and Boeing DC3C-S4C4G, and 1 more aircraft configuration. Recorded change: lnstallation of Pratt & Whitney of Canada PT6A-67R engines, Hartzell HC-B5MA-3/Ml 1276 or HC-B5MA-3( )/Ml 1691N, K model propellers, modified fuel system, revised electrical system, and forward fuselage extension. Snapshot dated June 30, 2026.

FAA-listed holder
Basler Turbo Conversions Inc.
Aircraft configurations
4
FAA revision date
FAA status
Current · Amended

Recorded modification

What the FAA record covers

lnstallation of Pratt & Whitney of Canada PT6A-67R engines, Hartzell HC-B5MA-3/Ml 1276 or HC-B5MA-3( )/Ml 1691N, K model propellers, modified fuel system, revised electrical system, and forward fuselage extension.

SA4840NM 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 DC3C-R-1830-90C, Boeing DC3C-S1C3G, and Boeing DC3C-S4C4G, and 1 more aircraft configuration. Confirm the approved model list, serial effectivity, configuration, and certificate revision.

Boeing DC3C-R-1830-90CA-669Boeing DC3C-S1C3GA-669Boeing DC3C-S4C4GA-669Boeing DC3C-SC3GA-669

Buyer checks

Confirm before sourcing

  1. 01Does it cover the exact Boeing DC3C-R-1830-90C and Boeing DC3C-S1C3G, and 2 more aircraft configurations model, serial range, and configuration?
  2. 02Which tanks, plumbing, usable-fuel assumptions, and inspections 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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