Fabricated two F-1237H Seatback Hinges by cutting two 10.5 inch AN257-P3 hinges, removing the middle eyelet and match-drilling holes through the F-1237D Lower Seatback Angle. Prepared F-1237F (Fwd and Aft) hinges from an AN257-P2 hinge. Match-drilled holes into the an Aft hinge through the F-1237G Seatback Brace.
