HelicoptersC/NPhotos Photos AgustaWestland AW139 in Bristow US AgustaWestland AW139 N139TZ 30Nov09 Bristow US 2010-Dec22; pictured AgustaWestland AW139 N139TZ 30Nov09 Bristow US 2010-Dec22; pictured AgustaWestland AW139 N439BG Aug-11 Bristow US Aug11-2021, pictured AgustaWestland AW139 N439BG Aug-11 Bristow US Aug11-2021, pictured AgustaWestland AW139 N639BG 08Mar15 pictured at Venice, LA. AgustaWestland AW139 N639BG 08Mar15 pictured at Venice, LA. AgustaWestland AW139 N739BG Bristow Rescue from Oct17, pictured AgustaWestland AW139 N739BG Bristow Rescue from Oct17, pictured AgustaWestland AW139 N925VH 15Aug16 pictured (pic4) in relief efforts during Louisiana flood AgustaWestland AW139 N925VH 15Aug16 pictured (pic4) in relief efforts during Louisiana flood