Cessna 172R

TTP B1-L1 ATA52 Cessna 172 B2-L1 Cabin door is installed on each side of the airplane. Each door has an outer sheet skin that is chemically  bonded to an inner pan assembly. Each door has a latch assembly, an inside handle, a pair of external  hinges, and a doorstop assembly. Operation -  The cabin doors open by the inside or outside handle, that is connected to internal components. Cabin door latch is a two-part assembly latch base, external handle, spring-loaded latch bolt and  pull-bar assembly, and a spring-loaded catch pin assembly. The interior handle base plate assembly  is directly connected to the cabin door latch by an adjustable push rod assembly. This push rod  assembly has two clamps attached 180 degrees apart on the main rod. These clamps operate a  cable assembly that moves a cable pin from the top aft end of the cabin door into the aft top door sill. Door latch exterior handle is extend...

Cabin door is installed on each side of the airplane. Each door has an outer sheet skin that is chemically bonded to an inner pan assembly. Each door has a latch assembly, an inside handle, a pair of external hinges, and a doorstop assembly.                  Cabin Door Adjustment/Test A. Adjust the new cabin doors. CAUTION: Do not adjust the bonded door flange or the airplane structure with force. Damage to the bonded areas and the structural components can occur. (1) Trim the door flange as required to get a gap between the door skin and fuselage skin of 0.09  inch (2.3 mm) or less. B. Adjust the cabin doors. NOTE: The cabin doors must be smooth with the fuselage skin. (1) Use the slots at the door latch plate to adjust the latch assembly and the bolt engagement  with the rotary clutch on the door post.