EFFECTIVITY BITE PROCEDURE INDEX
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MAINTENANCE DOCUMENTS - BITE MANUAL
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MAINTENANCE DOCUMENTS -- MAINTENANCE TIP General
The maintenance tip gives information that helps the mechanic in a procedure. The information is short and simple so it is easy to understand. It is published and mailed within 10 days. The maintenance tip gives mechanics information to make repairs quickly and easily. It has these sections:
-Subject
-Applicability
-Condition
-Recommended action
-Background (optional)
-Maintenance manual action.
Subject
The subject shows the topic of the procedure.
Applicability
The applicability specifies line numbers, airplanes, or part numbers and software if necessary.
Condition
The condition section gives a brief description of the condition.
737-600/700/800/900 TRAINING MANUAL
Recommended Action This section gives the actions required to dispatch the
airplane. This section may include a sketch if applicable. Background The background section gives the probable cause of the
condition. It may tell how to prevent the condition. Maintenance Manual Action This section is made by maintenance publications and
shows which manuals have updates.
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01-00-00-202 Rev 1 12/02/1998
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MAINTENANCE DOCUMENTS -- AMM PART 1 General
The Airplane Maintenance Manual (AMM) Part I is the first of the two parts of the AMM. It is called the Systems Description Section (SDS). This section replaces the description and operation (D and O) section of 737-300/400/500 AMM. Both Part I and Part II of the AMM show the configuration of the airplanes in an operator's fleet. They have frequent revisions for improvements and for configuration changes.
Purpose
The SDS gives descriptions of the interfaces, function, and operation of the airplane systems and subsystems. You use these descriptions to become familiar with the airplane systems so that you can do fault isolation and system maintenance.
The SDS content can be used as a training manual.
Organization
The SDS uses text/graphic paravisuals (pagesets). Each graphic has one or more pages of text that describe the information on the graphic. The graphic has the primary information and the associated text page(s) have the support information or explanations.
The SDS uses a horizontal (sometimes called landscape) format. All pages (graphic and text) are 8-1/2 by 11 inches. The graphic page is always on the bottom (odd
737-600/700/800/900 TRAINING MANUAL
numbered page) of the text/graphic paravisual. The text pages have a double galley (two column) format.
Divisions
The SDS organization is by ATA chapter (system) or chapter/section (subsystem). Each ATA chapter/section usually defines an airplane system or subsystem.
Each subject of the SDS has this information:
-Purpose/introduction
-General description
-Component location
-Interface
-Operation
-Functional description
-Training information points (TIPs).
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APU IGNITION AND START SYSTEM - SPU AND SCU GENERAL DESCRIPTION
Start Power Unit
The start power unit changes 115v ac or 28v dc electrical power to 270v dc power. Transfer bus 1 or the battery supplies power to the start power unit (SPU).
The SPU gives fault data to the ECU through the SCU for display on the CDU.
The SPU is in the EE compartment on the E2-2 shelf.
Start Converter Unit
The start converter unit (SCU) converts the 270v dc power to AC and sends it to the starter-generator.
The SCU gives fault data to the ECU for display on the CDU.
The SCU is in the EE compartment on the E2-2 shelf.
See the electrical chapter for more information about the APU starter-generator generate function. (AMM PART I 24)
Start Control
The electronic control unit sends a signal to the start converter unit when the air inlet door is fully open. the start converter unit tells the start power unit to supply the 270v dc. The start converter unit changes the 270v dc to ac power for the operation of the
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