Aug 7 (Reuters) - Delta Air Lines ( DAL ) was sued by

passengers who complained that the carrier refused to offer full

refunds after delaying or canceling their flights in the wake of

last month's massive computer outage.

The proposed class action was made public on Wednesday in

Atlanta federal court, after the July 19 outage disrupted

airlines, banks, hospitals and emergency lines.

Passengers accused Delta of breach of contract for

failing to provide automatic refunds, and providing partial

refunds only if they signed waivers against pursuing further

legal claims.

They also said Delta should compensate them for the cost and

inconvenience of rebooking with other airlines, hotels and food,

and from being separated from their luggage.

One of the four plaintiffs, John Brennan of Florida, said he

and his wife missed a $10,000 anniversary cruise after being

stranded in Atlanta on a layover, but Delta offered just $219.45

in compensation.

The lawsuit said the airline's "unfair, unlawful, and

unconscionable practices resulted in Delta unjustly enriching

itself at the expense of its customers."

Delta declined to comment on the lawsuit, but has said

passengers whose travel was disrupted can request and receive

refunds, and seek compensation for incidental costs.

Delta's passengers remained stranded, waiting in lines for

days trying to get to their destinations," Joseph Sauder, a

lawyer for the plaintiffs, said in an email. "When our clients

sought refunds, Delta again failed to deliver."

The outage stemmed from a flawed software update from the

cybersecurity company CrowdStrike ( CRWD ) that crashed more

than 8 million computers worldwide and affected many Microsoft ( MSFT )

customers.

Disruptions subsided the next day for many U.S. carriers but

persisted at Delta, leading to more than 6,000 cancellations.

CrowdStrike ( CRWD ), Microsoft ( MSFT ) and Delta have since argued publicly

over who is to blame and should pay the bills.

Delta Chief Executive Ed Bastian estimated on July 31 that

the outage cost his Atlanta-based carrier about $500 million.

Passengers filed a separate class action against CrowdStrike ( CRWD )

on Monday, also seeking damages.

The Austin, Texas-based company has said it was neither

grossly negligent nor at fault for Delta's problems.

The case is Bajra et al v Delta Air Lines ( DAL ), U.S. District

Court, Northern District of Georgia, No. 24-03477.