Airline takes heat over note on wing . The FAA says Horizon Air operated 22 aircraft with improper rivets . The airline made 186,189 flights while the planes were `` unairworthy , '' the FAA says . In a statement, Horizon said it was cooperating fully and that its pilots had been trained to inspect their planes. Horizon Air says it believed the rivets were OK , `` at no time was passenger safety compromised ''
The FAA says Horizon Air operated 22 aircraft with improper rivets . The airline made 186,189 flights while the planes were `` unairworthy , '' the FAA says . In a statement, Horizon said it was cooperating fully and that its pilots had been trained to inspect their planes. Horizon Air says it believed the rivets were OK , `` at no time was passenger safety compromised ''