STC SR12332SE

SR12332SE Mechanical Specialties, LLC 1000 85th Ave SE Olympia, WA 98501 Part 29 Title 14 CFR See attached AML See attached AML See attached AML Approval of this change in type design applies only to the rotorcraft listed above. The installation should not be incorporated on any aircraft unless it is determined that the interrelationship between this installation and any previously approved configuration of the aircraft will not introduce any adverse effect the airworthiness of the aircraft. (Continued on page 3.)

01/20/2025 03/27/2026 for Manager, West Certification Branch 3 Installation of Mechanical Specialties, LLC Human External Cargo (HEC) and non-HEC Hook System in accordance with the Master Drawing List (MDL), Report No. 650-430-107, Revision 4, dated January 23, 2026, or a later approved revision. (Continued on Page 3)

SR12332SE 03/27/2026 3

SR12332SE 03/27/2026 Description of Design Change (Continued from Page 1):

1. Maintained in accordance with the Instructions for Continued Airworthiness (ICA), document number 650-430-105, Revision 1, dated October 2, 2025 or later accepted revision.

2. Operated in accordance with Rotorcraft Flight Manual Supplement (RFMS), document number 407-430-110, Revision IR, dated March 24, 2026, or a later approved revision.

Limitations and Conditions (Continued from Page 1):

1. A copy of this certificate, the ICA, and the RFMS, must be maintained as part of the permanent records for the modified aircraft.

2. Operational approval for external load operations must be granted by the local Aviation Authority.

3. If the holder permits another person to use this certificate to alter the product, the holder shall give the other person written evidence of that permission.

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