The Federal Aviation Administration plans to hit Delta Air Lines with a US $156,000 civil penalty for alleged drug and alcohol testing discrepancies. The FAA said Delta either hired or transferred 45 workers into safety-critical positions but did not obtain their drug and alcohol testing records within the prescribed timeframe from previous employers,

It included 34 flight attendants, seven maintenance workers, and four aircraft dispatchers.

The employees continued working in safety-sensitive positions after the deadline to take their previous testing records expired.

Additionally, the FAA said the airline allowed two workers to perform safety-critical work when they were not part of a random drug and alcohol testing pool, and Delta failed to conduct follow up testing on two workers who had successfully completed alcohol or drug treatment programs.

Delta has 30 days to respond to the FAA’s enforcement letter.