STC SR02553LA

SR02553LA S-TEC Corporation One S-TEC Way Mineral Wells, TX 76067-9236 27 Code of Federal Regulations R00015LA Robinson Helicopter Company R66

1. Installation of an HeliSAS Stability Augmentation System / Autopilot in accordance with Master Data List, ST-953-MDL-0001, Rev. F, dated April 20, 2022, or later FAA approved revisions.

2. Rotorcraft Flight Manual Supplement to the Robinson Helicopter Compnay R66 Rotorcraft Flight Manual, ST-953-RFMS-0001, Rev. C, dated April 25, 2022, or later FAA approved revisions. (See continuation sheet 3)

1. This STC is applicable to all serial numbers for Robinson Helicopter Company Model R66. (See continuation sheet 3) May 15, 2015 January 21, 2016 April 25, 2022 Lead ODA administrator 3

SR02553LA Description of Type Design Change:

3. Instructions for Continued Airworthiness ST-953-ICA-0001, Rev. A, dated April 25, 2022, or later FAA approved revisions, Limitations and Conditions:

2. The installer must determine whether this design change is compatible with previously approved modifications.

3. If the holder agrees to permit another person to use this certificate to alter a product the holder must give the other person written evidence of that permission.

4. Certification Basis: Compliance determination used for this STC, 14 Code of CFR Requirements of Part 27 and Special Condition No. 27-035-SC, as given in S-TEC 14 CFR Compliance Checklist, Document No. ST-953-CCL-0001 Revision -, dated May 13, 2015.

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