STC SH3686NM
FAA DRS lists SH3686NM as Current · Reissued, held by Isolair Inc., for MD Helicopter 369HS, MD Helicopter 500N, and MD Helicopter 369HE, and 6 more aircraft configurations. Recorded change: Installation of an Isolair Model3700-110 spray tank system. (500N restricted category). Snapshot dated June 30, 2026.
Recorded modification
What the FAA record covers
Installation of an Isolair Model3700-110 spray tank system. (500N restricted category).
SH3686NM 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: MD Helicopter 369HS, MD Helicopter 500N, and MD Helicopter 369HE, and 6 more aircraft configurations. Confirm the approved model list, serial effectivity, configuration, and certificate revision.
Buyer checks
Confirm before sourcing
- 01Does it cover the exact MD Helicopter 369HS and MD Helicopter 500N, and 7 more aircraft configurations model, serial range, and configuration?
- 02Which tanks, plumbing, usable-fuel assumptions, and inspections apply?
- 03Who can legally supply the design data, kit, instructions, and ICAs?
- 04What parts, labor, conformity, and return-to-service work are excluded?
Related fuel systems STCs
Install wing leading edge fuel t anks. Data required: FLOAIR Drawings 56001 Documents 1440 56002 Sheets 1 & 2 1450 56003 1460 56004 56005 56006 56008 56007 56009.
FAA holder: D'Shannon Products Ltd.
Installation: Wing leading edge fuel tanks Data required: Floair Document 141-3.21.1 dated June 23, 1972, and approved Airplane Flight Manual Supplement, Floair Document 141-3.91 dated July 24, 1972.
FAA holder: D'Shannon Products Ltd.