A Greyhound bus was involved in an accident resulting in five fatalities and numerous injuries. Unicco was responsible by contract for tire maintenance on the bus.
Suits were filed against Greyhound alleging that Greyhound negligently inspected and maintained tires on the bus. One of the suits named Unicco as a defendant, and Greyhound brought third-party suits against Unicco where it was not named.
Unicco had a GL policy from Travelers under which Greyhound was an additional insured "only with respect to liability arising out of [Unicco's] ongoing operations performed for [Greyhound]" and, in a different endorsement, except with respect to "liability arising out of the independent acts or omissions of [Greyhound]."
It was undisputed that Greyhound was entitled to coverage under the ongoing operations endorsement. Travelers declined to defend or indemnify Greyhound, although it is not clear why.
In Greyhound Lines, Inc. v. Travelers Property Casualty Co. of Am., 2012 WL 987515 (Mass. App. Ct.) (unpublished), the court held that Greyhound is also entitled to coverage under the second endorsement. The complaint in the suit naming Unicco alleged that Unicco's negligent performance under the tire maintenance agreement caused or contributed to the accident.
In what is either a typo or very poor phrasing, the court stated, "the duty to defend is not . . . an all or nothing proposition." Luckily the court went on to explain that the duty to defend is, in fact, an all or nothing proposition (at least in Massachusetts). "An insurer's broad duty to defend generally extends to all counts of a complaint, even those not specifically covered by the policy." Since at least some of the counts were covered, Travelers had a duty to defend Greyhound for all counts.
The court also held that Travelers had a duty to defend Greyhound in the lawsuits in which Unicco was not named, because of "the facts reasonably known to Travelers from the lawsuits in which Unicco is named as a direct defendant and is alleged to be liable for the accident, and because similar claims for negligence with respect to the maintenance and the inspection of tires are alleged against Greyhound."