Bypass Pin Set with Flag, Airbus 320-321, 330, 340 | eBay
ground operations - What will happen on Airbus A320-200 series when during push back NW STRG DISC in not in the towing position? - Aviation Stack Exchange
Bypass Pin Kit for Boeing 737 100-500 - EH 4227.
Bypass Pin Set with RBF Flag (Airbus 319, 320-321, 330, 340, 350, 380)
AIRBUS D23156000 Bypass Pin Kit with Safety Streamer
BOEING NLG BYPASS PIN for 737-100, 200, 300, 400 & 500 | eBay
Connecting tow bar and bypass pin to aircraft | Beverly Demientieff | Flickr
Challenger 300-350 NLG Bypass Pin Kit | RBF Flag
Safety in Aircraft Pushback Operation | Safety Precautions in Aircraft Pushback Procedure