N663H Howard DGA-15P Private Blakesburg - Antique Airfield (IA27), USA - Iowa Yuri Cremers - 05/09/2009
N663H Howard DGA-15P Private Watsonville Municipal (WVI / KWVI), USA - California Dave Welch - 05/2001
N663H Howard DGA-15P Private Oshkosh - Wittman Regional (OSH / KOSH), USA - Wisconsin Ray Barber - 29/07/2008
N663H Howard DGA-15P Private Watsonville Municipal (WVI / KWVI), USA - California Derek Heley - 25/05/2002