STC SH4909NM
FAA DRS lists SH4909NM as Current · Reissued, held by Cascade STC LLC, for MD Helicopters 369, MD Helicopters 369A, and MD Helicopters 369D, and 9 more aircraft configurations. Recorded change: Replace the aft engine compartment heat blanket with a stainless steel firewall. Snapshot dated June 30, 2026.
Recorded modification
What the FAA record covers
SH4909NM 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 Helicopters 369, MD Helicopters 369A, and MD Helicopters 369D, and 9 more aircraft configurations. Confirm the approved model list, serial effectivity, configuration, and certificate revision.
Buyer checks
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Related engine and powerplant STCs
Installation of CMI FADEC IOF-550 engine.
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Installation of a Kulite P/N APTE-130-1000-75G engine torque pressure transducer.
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Modification of the Engine Mount Assembly.
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Replacement of the original Pratt and Whitney PT6A-114(A) engine and propeller with a Pratt and Whitney PT6A-42A and 4-blade Hartzell Propeller HC-E4N-3P/D9900(K) propeller or 3-blade Hartzell Propeller HC-B3TN-3AE(Y)/T10290N(K)+2, and associated equipment.
FAA holder: Blackhawk Modifications Inc.