FAN COWL DOORSThe fan cowls are attached by four hinges and secured together by four latches at the bottom to close around the LP compressor case. Two deflection restraints make sure that the front lower corners cannot droop below the nose cowl line. They can be opened during ground maintenance to give access to the components installed on the case and on the gearbox, and let the thrust reverser halves (C-Duct) be opened. Each fan cowl door is maintained open by means of two telescopic hold open rods. There are two hold open positions, 55 degrees and 44 degrees. The 55 degrees maximum open position gives the access to the pylon interfaces and upper accessories. The 44 degrees position gives access to other features. Each fan cowl door has various access doors and outlets.