STC SP250NW

Number SP250NW This certificate, issued to: Pacific Propeller International LLC 5802 South 228th Street Kent, WA 98032-1810 Part 35 of theFederal Aviation Regulations, dated January 1, 1973.

Original ProductType Certificate Number: P-255-6 Make: Hamilton Standard Model: 2B20-401-6135A-9 Description of the Type Design Change: Add cooling cuffs and reduce the diameter to 96 15/16 Inches with a square tip in accordance with FAA Sealed Pacific Propeller, Inc. Drawing List Number 76001, dated January 12, 1976, or later FAA Sealed Revision thereto.

Limitations and Conditions: This approval limited to use on single engine tractor type aircraft with Jacobs Page R755S or R755SM engine installed without speed ring or engine cowling.

Take off HP 350 @ 2200 RPM for five minutes.

Maximum Continuous HP 275 @ 2030 RPM Maximum Diameter 96 15/16 inches (2% cut off permitted.)

The cuff must be removed each 24 months of service and the area of the blade under the cuff inspected in accordance with FAA Approved Pacific Propeller, Inc. Instruction PPI 7510, dated 10/20/75, or later FAA approved revision thereto.

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.

Date of application: March 7, 1975 Date reissued: March 25, 2004 Date of issuance: January 14, 1978 Date amended: March 25, 2004

(Signature) Acting Manager, Seattle Aircraft Certification Office (Title)

FAA FORM 8110-2(10-68