STC SE572SW

1jpe Certificate :Num6e1:

000 , or imprisonment not exceeding 3 yea rs, or both. This certificate may be transferred or made available to third persons by licensing agreements in accordance with 14 CFR 21 .47, ) ,s the property of the STC holder 14 CFR 21.120).

FFAA Form 8110-2 (03/21 ) Page 1 of _ United States of America Department of Transportation Federal Aviation Administration Supplemental Type Certificate Number: _ SE572SW _ _ This certificate issued to: Air Repair, Inc.

920 Airport Road Cleveland, MS 38732 .

Make: JacobsOriginal Product 121, 195, 237 Model: R-755A, R-755B Series; L4, L4M L4MB, L6, Description of Type Design Change: L6M, L6MA Installation of Jacobs-RAS325A Exhaust Valve Rotocaps according to Service Instruction No. 58B dated May 27, 1969, and subsequent FAA approved revisions.

RAS325A Exhaust Valve Rotocaps are restricted to 1200 hours service life but are eligible for a service life extension from 1200 to 1400 hours when overhauled and configured with parts in accordance with the details found in Jacobs Engine Service Bulletin 80 dated February 18, 2009. Compatibility of this modification with other previously approved modifications must be (See Continuation Sheet 3)

10/17/1966; (See Continuation Sheet 3) Date of Application: December 7, 1965 Date Reissued:

November 15, 2021 December 7, 1965 Date of Issuance: Date Amended:

(for) Christina M. Underwood Title: Manager, Atlanta ACO Branch 3

I!NS'JJJt'VC'llO!NS 'J{rra:nsftr P.1!11tfurs~nt Prom f 000 , or imprisonment not excee ding 3 years , or both. This certificate may be transferred or made available to th ird persons by licens ing agreements in accordance with 14 CFR 21 .47. Possessi on of this Supplemental Type Certificate (STC) document by persons other than the STC holde r does not constitute rights to the design data nor to alter an aircraft. aircraft engine , or propeller. The STC 's supporting documen tation (drawings , 1nstruct 1ons.

specifications , flight manual supp lements etc.) is the property of the STC holder.

FAA Form 81 10-2 (03/21) Page 2 of _ United States of America Department of Transportation Federal Aviation Administration Supplemental Type Certificate Number: _ SE572SW _ _

Transfer the ownership of Supplemental Type Certificate Number: _S _ E5 _ 7 _ 2 _ S _ W To (Name and address of transferee):

Air Repair, Inc.

920 Airport Road Cleveland, MS 38732 Extent of Authority (if licensing agreement):

Date o transfer:

Any altera tion of this certificate and/or the Type Certificate Data Sheet is punishab le by a fine not exceed ing $1 ,000 , or imprisonme nt not exceeding 3 years, or both. This certificate may be transferred or made available to third persons by licensing agreements in accordance with Tille 14 of the Code of Federal Regulations, part 21 section 21 .47 (14 CFR 21 4 7).

FAA Form 81 10-2 (03/21) Page United States of America Department of Transportation Federal Aviation Administration Supplemental Type Certificate (Continuation Sheet) Number: _ SE572SW Limitations and Conditions (continued) determined by the installer. 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.

Permission for use with R755-A2M s/n 21806 only.

Date Reissued (Continued): 01/12/1967; 04/17/1967; 05/27/1969; 01/01/1973;

05/24/1977; 10/27/1980 Rev. 7; 12/15/1993; 11/08/1999 --END-- 3 3