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757
MAINTENANCE MANUAL

INLET COWL
PP WL 100

CLINLET COWL 124.76

68.15
REAR EDGE 'C' DUCT
REAR EDGEFORWARD EDGE
FAN COWL PANEL
FAN COWL PANEL
LEFT SIDE VIEW OF NACELLE FOR ROLLS ROYCE RB211-535E4 ENGINE
PPS
174.30
2.4072`
1.8317

Engine and Nacelle Station Diagram
Figure 201

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757
MAINTENANCE MANUAL

 ZONE DIAGRAMS - MAINTENANCE PRACTICES
_____________________________________
 1.  General
_______
 A.  The 757 airplane is divided into 8 major zones to help you find and identify the airplane components and parts. The major zones then are divided into the subzones and the subzones into zones.
 B.  The zones are numbered in the sequence that follows:
 (1)  
Wings - inboard to outboard and front to back.

 (2)  
Horizontal Stabilizer and Elevator - inboard to outboard and front to back.

 (3)  
Vertical Stabilizer and Rudder - root to tip of vertical stabilizer.

 (4)  
Fuselage - front to back and away from floorline.

 C.  Each of the structural components, main deck compartment doors, cargo doors, landing gear doors, rudders, elevators, flaps, ailerons, spoilers, leading edge devices, and equivalent components has a different zone number.
 D.  A three-digit number identifies the major zones, subzones, and zones as follows:
 (1)  
Major Zone - the first digit is a number from 1 to 8 followed by two zeroes.

 (2)  
Subzone - the first digit represents the major zone, the second digit is a number from 1 to 6 or 9, and the third digit is a zero.

 (3)  
Zone - the first two digits represent the subzone number and the third digit shows a component or group of components that are in the subzone.

 TASK 06-30-00-222-001
 2.  Major Zones (Fig. 201)
___________
 A.  General
 (1) Refer to the table that follows for descriptions of the major zones: ~.............................................................. | MAJOR ZONE | DESCRIPTION | ................................................................ | 100 | Lower Half of Fuselage | ................................................................ | 200 | Upper Half of Fuselage | ................................................................ | 300 | Empennage and Body Section 48 | ................................................................ | 400 | Power Plants and Nacelle Struts | ................................................................ | 500 | Left Wing | ................................................................ | 600 | Right Wing | ................................................................ | 700 | Landing Gear and Landing Gear Doors | ................................................................ | 800 | Doors | 2....................….........................................1
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MAINTENANCE MANUAL

300

700
MAJOR ZONES 
800 700 600 500 400 300 200 100  DOORS RIGHT WING LEFT WING POWER PLANTS AND NACELLE STRUTS LANDING GEAR AND LANDING GEAR DOORS UPPER HALF OF FUSELAGE LOWER HALF OF FUSELAGE EMPENNAGE AND BODY SECTION 48

Major Zones Diagram
Figure 201

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