# Northbrook Insurance Company
Northbrook, Illinois

## Endorsement

**Named Insured:**
International Business Machines Corporation

**Policy Number:** 63-004 593
**Endorsement No.:** 1-4

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In consideration of the premium charged, it is agreed that the insurance afforded by this policy shall not apply with respect to any liability arising out of aircraft products manufactured, sold or distributed and/or all sums which any insured shall become legally obligated to pay as damages resulting in or from grounding of any aircraft.

"Aircraft Products" means aircraft (including missiles or spacecraft and any ground support of control equipment used therewith), aircraft parts and goods or products installed in or on an aircraft or used in connection with aircraft; manufactured, sold, handled, or distributed by any named insured or by others trading under their name. "Aircraft Products" includes tooling used in the manufacture of aircraft products, and also includes ground handling tools and equipment, training aids, instructions, manuals, blueprints, engineering and other advice, engineering and other advice and services and labor relating to aircraft products.

"Grounding" means the withdrawal, at or about the same time, in the interest of safety, of one or more aircraft from flight operations because of a like condition or suspicion thereof. Two or more such aircraft whether such aircraft so withdrawn are owned or operated by the same or different persons, firms or corporations. Grounding shall be deemed to commence on the date of an accident or occurrence which discloses such condition, or on the date an aircraft is first withdrawn from service on account of such condition, whichever first occurs.

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This endorsement to take effect on the 21st day of May 1978. All other terms and conditions remain unchanged.

**Countersigned:** May 30, 1978
**Authorized Representative:** [Signature]

**SUJA PRINTED IN USA**

**INSURANCE COMPANY**