Information: On page 9 of 9 of Service Instruction No. 1029D, the wrench part number STD­375 (3/4 inch Hex head) for cylinder base nut part number STD­2090 should be wrench part number ST­375 (3/4 inch Hex head).

DATE RELEASED: June 2007 TITLE: AEIO-580-B1A Parts Catalog DOCUMENT PART NUMBER: PC-701-2

DATE: April 10, 1987 MODELS AFFECTED: GO-435, GO-480, IGO-480. GSO-480, IGSO-480. IGO-540, IGSO-540, VO-540. TIGO-541. TIME OF COMPLIANCE: At all times during engine operation including ground running.

REPRINT OF HARTZELL ENGINE TECHNOLOGIES' SERVICE BULLETIN ASB 069 DATE: August 29, 2017 MODELS AFFECTED: Table 2 in this Service Bulletin TIME OF COMPLIANCE: Next maintenance event not to exceed 25 hours or before further flight if fuel leak found during preflight inspection

DATE RELEASED: February 2017 TITLE: IO-360-P1A Engine Installation and Operation Manual DOCUMENT PART NUMBER: IOM-IO-360-P1A

DATE RELEASED: February 2017 TITLE: IO-360-P1A Maintenance Manual DOCUMENT PART NUMBER: MM-IO-360-P1A

DATE RELEASED: July 2017 TITLE: IO-360-P1A Parts Catalog DOCUMENT PART NUMBER: PC-IO-360-P1A

DATE RELEASED: July 2017 TITLE: LIO-360-B1G6 Parts Catalog DOCUMENT PART NUMBER: PC-LIO-360-B1G6

DATE RELEASED: September 2017 TITLE: LIO-360-B1G6 Installation and Operation Manual DOCUMENT PART NUMBER: IOM-LIO-360-B1G6