Boeing 767 - Page 108

YES
IS THERE A COOLING SYSTEM
FAILURE?
NO
REPLACE THE NECESSARY PART. 1.
2.
CONTINUE TO USE THE ENGINE.
YES
NO
OF
CYCLES THE AIRPLANE HAS
FLOWN WITH A COOLING SYSTEM
FAILURE?
DO YOU KNOW THE TOTAL NUMBER
CYCLES?
NO
YES
MAKE SURE THE FAN ROTOR
TURNS FREELY.
REPLACE
THE NECESSARY PART.
CONTINUE TO USE THE ENGINE.
1.
2.
3.
ARE THE TOTAL NUMBER OF CYCLES
BLADE RETAINER.
DISCARD THE OLD HPT STAGE 2
HPT STAGE 2 BLADE RETAINER.
STAGE 2 DISKS. REPLACE THE
STAGE 2 DISKS AND THE HPT
THE LPT
ROTOR STAGE 1 &
TEMPERATURE INSPECTION OF
REMOVE THE ENGINE FOR OVER-
FOR 50 FLIGHT CYCLES. THEN
CONTINUE TO USE THE ENGINE
REPLACE THE NECESSARY PART.
TURNS
FREELY.
MAKE SURE THE FAN ROTOR 1.
2.
3.
1.
2.
3.
4.
STAGE 2 BLADE RETAINER.
STAGE 2 DISK, AND THE HPT
STAGE 2 DISKS, THE HPT
THE LPT
ROTOR STAGE 1 &
TEMPERATURE INSPECTION OF
ENGINE. DO AN OVER-
BASE VISIT, REMOVE THE
AT THE NEXT MAINTENANCE
CONTINUE TO USE THE ENGINE.
REPLACE
THE NECESSARY PART.
TURNS
FREELY.
MAKE SURE THE FAN ROTOR
LESS THAN OR EQUAL TO 12
216803 S00061422758_V1
Continue-In-Operation Limits for Cooling Air System Failures
Figure 625/72-00-00-990-836-G00
767
AIRCRAFT MAINTENANCE MANUAL
CF6-80A SERIES ENGINES
72-00-00
NoC
Page 675
D633T1B7 Aug 22/2017
ECCN 9E991 BOEING PROPRIETARY - Copyright © Unpublished Work - See title page for details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; COOLING AIR SYSTEMS
WITHOUT CHECK VALVES