Reference Description
COM-4964 Light Source - Borescope
767-200
Part #: ILH-2A Supplier: 32212
Opt Part #: 7502152 Supplier: 32212
SPL-2293 Cable - Fiberscope, Light
767-200
Part #: 9C1301P01 Supplier: 06083
Part #: 9C1301P03 Supplier: 06083
SPL-6753 Borescope Blending Tool - HPC Blade
767-200
Part #: MSE-79 Supplier: 06083
SPL-7178 Video Camera and Monitor - Micro CCD
767-200
Part #: JA-1000M Supplier: 3JCU5
D. Location Zones
Zone Area
410 Left Powerplant
420 Right Powerplant
E. Blend Limits
NOTE: These limits are used to keep the rotor in balance and keep the engine stall margins to a
minimum.
SUBTASK 72-35-00-218-044-G00
(1) Blend Limits for the Stage 1-14 HPC Blades with blending tool, SPL-6753(Figure 809,
Figure 810, and Figure 811)
NOTE: It is not necessary to blend blades with curled tips or folded edges unless they are torn
or cracked, or unless there is low engine performance and/or high engine vibration
caused by the curled or folded blades.
(a) Blending of nicks, dents, and tears is permitted within the limits shown in the above
Figures.
(b) Do not blend more than 0.25 inch (6.4 mm) from the platform root fillet radii.
1) Refer to the above Figures for the dimensions of the limited areas.
(c) Tool marks on the blade airfoil surfaces, the stator airfoil surfaces and the stator case
lands from blending are permitted.
SUBTASK 72-35-00-218-045-G00
(2) Blend Limits for the Stage 1-2 HPC Blades (Only):
NOTE: Any amount of edge erosion is permitted (limited by low engine performance and/or
high vibration).
(a) Blending is limited to four blades per stage as follows:
1) Up to 100 percent of area B (only one tip corner per blade) and up to 100 percent of
area C.
(b) An unlimited number of blades can have up to 0.2 square inch (129.03 square mm) of
material removed for each blade within the limits of Figure 809.
(c) An unlimited number of blades can be blended up to 100 percent of Area A (only one tip
corner per blade) and/or up to 50 percent of area C.
767
AIRCRAFT MAINTENANCE MANUAL
CF6-80A SERIES ENGINES
72-35-00
NoC
Page 826
D633T1B7 Dec 22/2016
ECCN 9E991 BOEING PROPRIETARY - Copyright © Unpublished Work - See title page for details
EFFECTIVITY
ABX 001-007, 011, 012, 016-019, 021, 022, 025, 101,
109, 114, 115, 314-999
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