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CFM56 ENGINES (CFM56-7) 737-600/700/800/900 AIRCRAFT MAINTENANCE MANUAL
77-31-00-116
THIS PAGE IS INTENTIONALLY LEFT BLANK
AVM SYSTEM - AVM SIGNAL CONDITIONER BITE - FAULT HISTORY - TRAINING INFORMATION POINT
77-31-00
Page 35
D633A101-GUN Jun 10/2006
BOEING PROPRIETARY - Copyright#- Unpublished Work - See title page for details.
CFM56 ENGINES (CFM56-7) 737-600/700/800/900 AIRCRAFT MAINTENANCE MANUAL
General
GUN 111-113
You select YES at the FLIGHT HISTORY? item in the main menu
to see vibration data for the last 32 flights (cycles) of each
engine. The flight data is in AVM non-volatile memory. You use
this main menu item to erase the flight data.
GUN 001-099, 101-110, 115, 201-999
You select YES at the FLIGHT HISTORY? item in the main menu
to see vibration data for the last 32 flights. The flight data is in
AVM non-volatile memory. You use this main menu item to
erase the flight data. When an incompatible airplane or engine
type is detected the FLIGHT HISTORY and BALANCE menus
will not show.
GUN 001-099, 101-113, 115, 201-999
One of two displays show after you push the YES switch with
FLIGHT HISTORY? on the display. The NO FLIGHT DATA
message shows if there is no flight data in memory. Push the
NO switch to return to the main menu.
The FLIGHTS DISPLAY? message shows if the AVM has
vibration data in memory. The XX gives the number of flights for
which data exists. You use the up arrow switch or the down
arrow switch to go to a specific flight. Flight 0 (zero) is the last
flight. Flight 31 is the oldest flight in memory. Push the YES
switch to see the data for a specific flight. See FLIGHT HISTORY
PG 2 for more information.
CLEAR FLIGHT MEMORY? shows after you push the NO switch
from the XX FLIGHTS DISPLAY? or an individual flight display.
Push the NO switch to return to the main menu and not erase
the flight data from memory. Push the YES switch to erase the
flight data from memory. FLIGHT MEMORY CLEARED shows
after the data erases from non-volatile memory.
AVM SYSTEM - AVM SIGNAL CONDITIONER BITE - FLIGHT HISTORY PG 1 - TRAINING INFORMATION POINT
EFFECTIVITY
GUN 001-099, 101-113, 115, 201-999 77-31-00
Page 36
D633A101-GUN Jun 10/2006
BOEING PROPRIETARY - Copyright#- Unpublished Work - See title page for details.
CFM56 ENGINES (CFM56-7) 737-600/700/800/900 AIRCRAFT MAINTENANCE MANUAL
77-31-00-117
AVM SYSTEM - AVM SIGNAL CONDITIONER BITE - FLIGHT HISTORY PG 1 - TRAINING INFORMATION POINT
AVM SYSTEM - AVM SIGNAL CONDITIONER BITE - FLIGHT HISTORY PG 1 - TRAINING INFORMATION POINT
EFFECTIVITY
GUN 111-113 77-31-00
Page 37
D633A101-GUN Jun 10/2006
BOEING PROPRIETARY - Copyright#- Unpublished Work - See title page for details.
CFM56 ENGINES (CFM56-7) 737-600/700/800/900 AIRCRAFT MAINTENANCE MANUAL
77-31-00-117
AVM SYSTEM - AVM SIGNAL CONDITIONER BITE - FLIGHT HISTORY PG 1 - TRAINING INFORMATION POINT
AVM SYSTEM - AVM SIGNAL CONDITIONER BITE - FLIGHT HISTORY PG 1 - TRAINING INFORMATION POINT
EFFECTIVITY
GUN 001-099, 101-110, 115, 201-999 77-31-00
Page 38
D633A101-GUN Jun 10/2006
BOEING PROPRIETARY - Copyright#- Unpublished Work - See title page for details.
CFM56 ENGINES (CFM56-7) 737-600/700/800/900 AIRCRAFT MAINTENANCE MANUAL
77-31-00-117
GUN 111-113
General
Push the YES switch at the FLIGHT XX display to see vibration
data for each engine for flight xx.
Data for engine number one shows first. The engine low
pressure rotor speed (N1) and high pressure rotor speed (N2)
show in percent. These values are a record of rotor speeds at
the time the highest vibration was recorded in the flight.
Push the down arrow switch to see the maximum vibration
levels for these areas of the engine:
* Fan
* High pressure compressor (HPC)
* High pressure turbine (HPT).
The vibration levels show in scalar units. These are the same
units as vibration shows on the common display system (CDS).
Select the down arrow switch to see the highest vibration level
of the low pressure turbine (LPT). The time when the highest
overall vibration occurs shows on this display. The time shows
in hours and is in reference to the start of the flight. See the
AVM signal conditioner page for more information about
conditions the signal conditioner uses to start and end a flight.
Push the NO switch from any of the engine 1 vibration displays
to see engine 2 vibration data. The same type of vibration
parameters show for engine 2. Push the NO switch from any of
the engine 2 vibration displays to go back to the FLIGHT XX
display in the flight history menu. See the previous page,
　
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