In 1987, a
Boeing 737-300 was leased to an American airline,
SunCoast Airlines for $67,000 a week. The lease was for a six month period. Disagreements around the contract became a major issue for both airlines, after SunCoast Airlines claimed the plane was supposed to arrive in November, but was instead delivered in December without the paperwork needed to register with the
Federal Aviation Administration (FAA). SunCoast's chairman alleged that Airways International Cymru repeatedly told them that they had filed the paperwork with the FAA, only for SunCoast to discover that it had never been filed. SunCoast said the contract caused them millions of dollars in losses. This caused the plane to be grounded, and meant Airways International Cymru couldn't reclaim the plane without going through court proceedings. Following the plane's grounding SunCoast sued Airways International Cymru for $301,725 in damages. SunCoast was court ordered to return the plane, or resume payments. During this time, Airways International Cymru was in debt with the leaseholders of their other planes. This caused G-CYMRU to be grounded in
Luton Airport. Their other planes had also been grounded, and the airline said they were attempting to either lease four new planes, or recover their existing ones.
Paramount Airways Limited took over Airways International Cymru's flights, using their own planes but landing at Cardiff Airport, so travel was not disrupted for customers. The company went into receivership in February, and 150 people lost their jobs. == Destinations ==