



Includes an explanation of the system of zoning and measurement used. 100 Lower half of the fuselage to the rear pressure bulkhead (below. A zone is identified by one of three indicators, depending upon whether it is a major zone, major sub-zone, or simply a zone. Those charts, diagrams, and text which show the area, dimensions, stations, access doors / zoning and physical locations, of the major structural members of the aircraft. Zoning of large aircraft is specified by the Air Transport Association of America in the ATA-100 Specification.05-50-00 Unscheduled Maintenance Checks 737-300 / -400 /-500 wiring diagram manual supplement lot mod list page 1 apr 05/11 modification incorporation list ata subject eff.
