Gone are the days of heavy three-ring binders. The current "top" of the technical manual is .
Below the flight deck, the AMM is the exhaustive technical anatomy of the 737-800. Its “top” is the chapter, which opens with a functional overview of the aircraft’s 32 ATA chapters (from Air Conditioning to Navigation). A top-level maintainer immediately turns to the Troubleshooting section, which uses fault isolation trees and built-in test equipment (BITE) codes from the CFM56-7B engines or the Common Core System (CCS) avionics. For example, a top query might be “Engine start valve fails to open” – leading to a structured logic flow that isolates a faulty solenoid, pressure switch, or wiring. boeing 737800 technical manual top
Powers trailing edge flaps and the main wheel brakes. Gone are the days of heavy three-ring binders