# ENDORSEMENT #0018

**THIS ENDORSEMENT, EFFECTIVE 12:01 A.M. 05/21/91 FORMS A PART OF POLICY NO. 308-31-33 ISSUED TO INTERNATIONAL BUSINESS MACHINES CORP. BY NATIONAL UNION FIRE INSURANCE COMPANY OF PITTSBURGH, PA.**

## AIRCRAFT LIABILITY FOLLOWING FORM

**IN CONSIDERATION OF THE PREMIUM PAID AND NOTWITHSTANDING ANYTHING CONTAINED IN THIS POLICY TO THE CONTRARY, IT IS UNDERSTOOD AND AGREED THAT SUCH COVERAGE AS IS AFFORDED BY THIS POLICY SHALL NOT APPLY TO PERSONAL INJURY OR PROPERTY DAMAGE ARISING OUT OF THE OWNERSHIP, MAINTENANCE, OR USE LOADING OR UNLOADING OF ANY AIRCRAFT UNLESS SUCH LIABILITY IS COVERED BY VALID AND COLLECTIBLE UNDERLYING INSURANCE AS LISTED IN THE SCHEDULE OF UNDERLYING INSURANCE AND THEN ONLY FOR SUCH HAZARDS FOR WHICH COVERAGE IS AFFORDED UNDER SAID UNDERLYING INSURANCE.**

**SOLELY AS RESPECTS THE COVERAGE AFFORDED BY THIS ENDORSEMENT, THE SCHEDULE OF UNDERLYING INSURANCE SHALL BE AS FOLLOWS:**

| TYPE OF POLICY | INSURER | LIMITS |
|----------------|---------|--------|
| AIRCRAFT LIABILITY | ASSOC. AVIATION | $50,000,000 EACH OCCURRENCE |

**ALL OTHER TERMS AND CONDITIONS REMAIN UNCHANGED.**

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**K. Gregnoli**  
AUTHORIZED REPRESENTATIVE

**INSURED'S COPY**