Delta Switching to Numbered Boarding Groups, Reports Record Revenue Despite Airport Snags

• Delta switching to numbered boarding group system instead of current names like Diamond Medallions. Airline says will be less confusing.

• Change doesn't alter order passengers board - cheap "Basic Economy" tickets still board last.

• Delta reports highest-ever first quarter revenue, small $37 million profit. Expects record second quarter numbers.

• CEO says no sign travelers worried by recent airplane incidents - demand "healthiest I've ever seen."

• Delta seeking reduced summer flights to NYC area airports again, says FAA lacks enough air traffic controllers.