Shortly afterwards , BE 548 reported passing 1,500 feet ( 460 m ) above ground level .
Shortly afterwards , was re-cleared to climb to 6,000 feet ( 1,800 m ) above sea level .
Shortly afterwards , BE 548 reported passing 1,500 feet ( 460 m ) above ground level and was re-cleared to climb to 6,000 feet ( 1,800 m ) above sea level .