PurposeUSED TO PREVENT INJURY TO THE ANTENNA, DRAIN MASTS, OR PERSONNEL. WARNING STREAMERS WILL HANG NEXT TO THE ATC, DME, AND VHF ANTENNAS, OR DRAIN MASTSAirplane767, 777-200, 777-200ER, 777-200LR, 777-300, 777-300ER, 777-8, 777-9, 777F, 787-10, 787-8, 787-9Usage CodeMAINTENANCE 