STC SR01127SE

SR01127SE Park Technologies, LLC 300 Dividend Drive Peachtree City, Georgia 30269 Part * the * Regulations * * See attached FAA Approved Model List (AML) No. SA01127SE for list of approved airplanemodels and applicable airworthiness regulations Modication of main rotor blade part number 61170-20201 in accordance with Master Drawing List RR 9633-08, Revision A, dated September 17, 2002, or later FAA approved revision. Note that the drawings include inspection of each blade to ensure airworthy condition prior to modification. Retirement life for the modified main rotor blade, part number RR-61170-20201 is 21,200 hours total time in service.

This approval should not be extended to other rotorcraft of this model on which other previously approved modifications are incorporated unless it is determined that the relationship between this change and any of those other previously approved modifications, including changes in type design, will introuduce no adverse effect upon the airworthiness of that rotorcraft. A copy of this Certificate must be maintained as part of the permanent records for the modified rotorcraft. The modified rotor blades must be maintained IAW the "Instruction for Continued Airworthiness,STC SR01127SE, S-61 Main Rotor Blades, RR-61170-20201 Series", Revision 1, dated November 14, 2007, or later FAA approved revision. Prior to return to service of a modified blade any prior or current repairs, which are not approved in the ICA, must be substantiated and FAA approved tot he new life limit of 21,200 hours.

If the holder agrees to permit another person to use this certificate to alter the product, the holder shall give the other person written evidence of that permission February 9, 1998 7/3/03; 6/10/04; 9/8/04; 10/20/22 September 27, 2002 12/20/07 For Acting Manager, Seattle ACO Branch

SR01127SE