The pilot in the plane crash that killed 71 people traveling to Colombia on a Bolivian charter including footballers from Brazil had not flown enough hours to pilot commercial flights, a copilot's attorney said on Saturday.

"We have been able to demonstrate that pilot Miguel Quiroga had not completed the training hours required" to fly commercially, Omar Duran, attorney for the family of copilot Fernando Goytia - who like Quiroga was killed in the crash - told state news agency ABI.

The LaMia airlines plane slammed into the mountains outside Medellin in Colombia on Nov 29, killing most of Brazilian football team Chapecoense Real as they traveled to a match.