Apt: BU

CALIFORNIA	BUR	BURBANK BOB HOPE
MISSOURI	BUM	BUTLER MEM
NEBRASKA	BUB	BURWELL CRAM FLD
NEW YORK	BUF	BUFFALO NIAGARA INTL
NORTH CAROLINA	BUY	BURLINGTON-ALAMANCE RGNL
WISCONSIN	BUU	BURLINGTON MUNI