ECS BLEED TUBES (REF) TURBINE CASE (REF) COOLING TUBE
FWD F
Figure 614 (Sheet 3) Combustion Chamber Access Port Locations
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COMBUSTION CHAMBER INNER COMBUSTION
FUEL INJECTOR BULKHEAD CHAMBER ASSEMBLY
(24 LOCATIONS)
ID SIDE OF OUTER 1ST-STAGE
COMBUSTION HPT
CHAMBER COMBUSTION OR VANE DILUTION HOLE (REF) (EXAMPLE) LOUVER LIP
OUTER(EXAMPLE)
COMBUSTION CHAMBER SEE AASSEMBLY
COMBUSTION CHAMBER CROSS-SECTION
AP-8
BORESCOPE
LOUVER GAP ACCESS PORT (EXAMPLE) BORESCOPE BORESCOPE AP-9 OD SIDE (COLD SIDE) OF OUTER
(EXAMPLE) LOOKING ACCESS PORT COMBUSTION CHAMBER
LOUVER KNUCKLE FORWARD (OPTIONAL, 93`)
AREA (EXAMPLE)
L-A3330 (0395)
A
DILUTION HOLES (EXAMPLE) OUTER COMBUSTION CHAMBER LOUVERCOMBUSTION HOLES (EXAMPLE) (NO. 4, 5, 6 LOUVERS) SURFACE (EXAMPLE)(NO. 3 LOUVER)
OUTER BURNER LINER 1ST-STAGE BULKHEAD SURFACE HPT VANES
FUEL INJECTOR (24 LOCATIONS)
FUEL INJECTOR GUIDE AND HEATSHIELD DILUTION HOLES (24 LOCATIONS) (EXAMPLE)
(NO. 5, 6 LOUVERS)
FWD SLIP JOINT SEAL INNER COMBUSTION
COMBUSTION L-A3336 HOLES (EXAMPLE)
CHAMBER LOUVER SURFACE (NO. 3 LOUVER) (EXAMPLE) COMBUSTION CHAMBER INTERNALS VIEW LOOKING CIRCUMFERENTIALLY Combustion Chamber Components Figure 615
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////////////////////////A / PW4000 SERIES /747-400 / ENGINES /MAINTENANCE MANUAL ////////////////////////
LOUVER IDENTIFICATION NUMBERS DIM
2 3 4 5 6 7 8 9
1 DIM DIM
B D
FWD
DIM A
C
12 O'CLOCK
POSITION
24
23
FUEL INJECTORS
22
(24 LOCATIONS) 21
20
19
18 MOUNT LUG LOCATIONS
17 (12
16
LOCATIONS) 15
14
13
6 O'CLOCK
POSITION
12
11
10
9
8
IGNITER PLUG LOCATIONS 7 (2
6
LOCATIONS)
5
4
3
2
1 POSITION 12 O'CLOCK
PLANVIEW - COMBUSTION CHAMBER INTERNAL SURFACE
Outer Combustion Chamber Figure 616
360`
330`
DIM A = 300` DIM B =
270` DIM C = DIM D =
240`
210`
180`
150`
120`
90`
60`
30`
0`
CLOCKWISE FROM THE REAR
CIRCUMFERENTIAL
AXIAL
RADIAL
1.42 INCHES REF
(36.068 mm)
0.97 INCH REF
(24.638 mm)
1.24 INCHES REF
(31.496 mm)
0.98 INCH REF
(24.892 mm)
L-A3337 (0597)
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CIRCUMFERENTIAL
DIM C AXIAL
DIM B
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