N53386 Howard NH-1 Nightingale Private Casa Grande Municipal (CGZ / KCGZ), USA - Arizona Dave Welch - 03/1986
N9125H Howard NH-1 Nightingale Private Oshkosh - Wittman Regional (OSH / KOSH), USA - Wisconsin Joe Evans - 25/07/2016
N1335M Howard NH-1 Nightingale Private Oshkosh - Wittman Regional (OSH / KOSH), USA - Wisconsin George Trussell - 28/07/2008
N1335M Howard NH-1 Nightingale Private Oshkosh - Wittman Regional (OSH / KOSH), USA - Wisconsin Ray Barber - 28/07/2008
