M

M
M	Mach
M	Mach Number
M	Magenta
M	Maneuvering Speed (EFIS)
m	Meter
M	Mode
M/L	Mood Lighting
m3	Cubic Meter
MA	Maintenance Annunciator
MA	Milli-Ampere
MAA	Maximum Authorized IFR Altitude
MAAP	Members and Associated Partners
MAC	Maintenance Action Classification
MAC	Mean Aerodynamic Chord
MACT	Module Application Configuration Table
MADAR	Malfunction Detection Analysis and Recording Subsystem
MAF	Maintenance Access Function
MAG DEC	Magnetic Declination
MAG DEC	Magnetic Declination
MAG	Magazine
MAG	Magnetic
MAG VAR	Magnetic Variation
Mag.M	Magnetized Material
MAGN	Magnetron
MAIDS	Multipurpose Automatic Inspection and Diagnostic System
MAIN MUX	Main Multiplexer
MAIN MUX	Main Multiplexer
MAINT	Maintenance
MALS	Medium Intensity Approach Light System
MALSR	Medium Intensity Approach Light System with Runway Align
MAN	Manual
MAP	Ground Mapping
MAP	Master Annunciator Panel
MAP	Missed Approach Segment
MAPSP	Master Attendant Passenger Service Panel
MAS	Milli-Ampere/Seconds
MAS	Modification Approval Sheet
MAS	Modulated Air System
MASI	Mach Airspeed Indicator
MAT	Maturity
MAT	Multi-purpose Access Terminal
MAWP	Missed Approach Waypoint
MAX CLB	Maximum Climb
MAX DES	Maximum Descent
MAX END	Maximum Endurance
MAX	Maximum
MB	Millibars
mbar	Millibar
MBN	Metallic Bonding Network
MC	Master Change
MC	Material Cost
MCA	Maintenance Central Access
MCA	Major Component Assembly
MCA	Minimum Crossing Altitude
MCBF	Mean Cycles between Failures
MCC	Maintenance Control Center
MCC	Modification Customer Chart
MCCT	Module Common Configuration Table
MCD	Movable Class Divider
MCDL	Master Configuration Deviation List
MCDU	Multipurpose Control & Display Unit
MCE	Motor Control Electronic
MCi	Millicurie
MCL	Maximum Climb
MCPU	Motor Control and Protection Unit
MCR	Manufacturer Change Request
MCR	Maximum Cruise
MCS	Mission Computer Subsystem
MCSU	Mechanical Crash Sensor Unit
MCT	Maximum Continuous Thrust
MCTI	Manufacturing Critical Item
MCU	Master Control Unit
MCU	Modular Concept Unit
MCUR	Mean Cycle Between Unscheduled Removals
MCVL	Manual Configuration Variation List
MCW	Modulated Continuous Wave
MD	Main Deck
MDA	Minimum Decision Altitude
MDA	Minimum Descent Altitude
MDAU	Modular Data Acquisition Unit
mdc	mdc
MDCC	Main Deck Cargo Compartment
MDCD	Main Deck Cargo Door
MDCLS	Main Deck Cargo Loading System
MDDU	Multipurpose Disk Drive Unit
MDF	Medium Frequency Direction Finding Station
MDH	Minimum Descent Height
MDL	Module
MDR	Multiregional DBS (Digital Broadcast System) Receiver
MDU	Manual Drive Unit
MDU	Multiplier Divider Unit
MEA	Minimum En Route IFR Altitude
MEAS	Measurement
MEASRG	Measuring
MEC	Main Engine Control
MECH	Mechanic, Mechanical, Mechanism
MED	Medium
MEL	Minimum Equipment List
MEM	Memory
MEO	Middle Earth Orbit
MEP	Main Executive Program
MES	Main Engine Start
MET	Meteorological
MEV	Main Electro Valve
MEV	Million Electron-Volts
MEW	Manufacturers Empty Weight
MF	Medium Frequencies
MFA	Memorized Fault Annunciator
MFD	Multifunction Display
MFG	Manufacturing
MFP	Maintenance Facility Planning
MFP	Mixed Fission Products
MFP	MultiFunction Probe
MFR IDENT	Manufacturer Identification
MFR	Manufacturer
MFS	MultiFunction Sensor
MFT	Multi Functional Team
MFTW	Maximum Design Fuel Transfer Weight
MFW	Maximum Design Flight Weight
MGB	Main Gear Box
MGMT	Management
MGT	Management
MHE	Magnetic Heading East
MHM	Maintenance HMI Manager
MHN	Magnetic Heading North
MHS	Magnetic Heading South
MHSU	Magnetic Heading Sensor Unit
MHW	Magnetic Heading West
MHZ	Megahertz
MI	Magnetic Indicator
MIB	Management Information Base
MIC	Microphone
MICBAC	Micro-system Bus Access Channel
MICBAC	Micro-System Bus Access Channel
MID	Middle
MID	Modification Information Document
MIDU	Multi-Input Interactive Display Unit
MILA	Mini Light Adapter
mile/h	Miles per Hour
MIN FUEL	Minimum Fuel
MIN	Minimum
min	Minute
MIN TIME	Minimum Time
MIP	Maintenance Information Printer
MIP	Master Interphone Panel
MIPO	Manually Issued Purchase Order
MIPS	Maintenance Information and Planning System
MISC	Miscellaneous
MJC	Maintenance Job Card
MJO	Maintenance Job Order
MJSS	Maintenance Job Summary Sheet
MKGS	Markings
MKR	Marker (radio) Beacon
ml	Milliliter
MLA	Maneuver Load Alleviation
MLAP	Maintenance Laptop
MLB	Maintenance LogBook
MLC	Mood Lighting Controller
MLD	Molded
MLFAP	Mood Lighting Flight Attendant Panel
MLG	Main Landing Gear
MLGB	Main Landing Gear Bay
MLI	Magnetic Level Indicator
MLIH	Magnetic Level Indicator Housing
MLS	Microwave Landing System
MLW	Maximum Design Landing Weight
MLW	Maximum Landing Weight
MM	Maintenance Manual
MM	Middle Marker
mm	Millimeter
mm2	Square Millimeter
mm3	Cubic Millimeter
MMC	Maximum Material Condition
MMDB	Mechanical Main Data Bank
MMEL	Master Minimum Equipment List
MMH/FH	Maintenance Man Hours per Flight Hour
MMI	Manual Magnetic Indicator
MMO	Mach Max Operating Speed
MMO	Maximum Operating Mach
MMR	Multi-Mode Receiver
Mn	Mach Number
MNFOLD	Manifold
MNR	MATERIAL NonConformity Report
MOCA	Minimum Obstruction Clearance Altitude
MOD	Modification
MOD	Modulator
MOD/V	Modulating Valve
Modem	Modulator-Demodulator
MODLTR	Modulator
Modman	Modem/Manager
MON	Monitor, Monitoring, Monitored
MONG	Monitoring
MONMT	Monument
MOR	Modular Overceiling Rack
MORA	Minimum Off Route Altitude
MORV	Mixer Overpressure Relief Valve
MOS	Metal Oxide Semiconductor
MOS	Metal Oxyde Semiconductor
MOT	Motor, Motorized
MP	Main Processor
MP	Maintenance Practices
MP	Modification Proposal
MPA	Maximum Power Assurance
MPaT	Materials, Processes and Tests
MPB	Micro Processor Bipolar
MPD	Maintenance Planning Document
MPDS	Maintenance Planning Data Support
MPDS	Mobile Packet Data Service
MPFAP	Multi Purpose Flight Attendant Panel
MPL	Maximum Permitted Life
MPPT	Maintenance Program Publication Trigger
MPR	Multipurpose Register
MPS	Maximum Performance Specifications
MPS	Multiplex Power Supply
MPU	Magnetic Pickup
MPU	Modem Processor Unit
MPV	Manifold Pressure Valve
MQPB	Minimum Quantity Price Break
mr/hr	Milliroentgens per Hour
MRA	Minimum Reception Altitude
MRB	Maintenance Review Board
MRBD	Maintenance Review Board Document
MRBR	Maintenance Review Board Report
mrem/hr	Millirems per hour
MRIU	Maintenance & Recording Interface Unit
MRS	Malfunction Reporting Systems
MRW	Maximum Ramp Weight
MS	AI Maintenance Schedule
MS	Military Standard
MSA	Minimum Safe Altitude
MSB	Most Significant Bit
MSC	Maintenance Steering Committee
MSCN	Manufacturer Specification Change Notice
MSD	Mass Storage Device
MSDS	Material Safety Data Sheet
MSG	Maintenance Steering Group
MSG	Message
MSI	Maintenance Significant Item
MSI	Medium Scale Integrated
MSJ	MAJOR STRUCTURE JUSTIFICATION
MSL	Maintenance Significant Item List
MSL	Maintenance System Load
MSL	Mean Sea Level
MSM	Monitoring System Module
MSN	Manufacturer Serial Number
MSTR	Master
MSU	Magnetic Sensor Unit
MSU	Media Server Unit
MSU	Mode Selector Unit (IRS)
MSU	Motor Switching Unit
MSW	Microswitch
MT	Mount
MTBD	Mean Time Between Defects
MTBF	Mean Time Between Failure
MTBI	Mean Time Between Inspection
MTBIFS	Mean Time Between In Flight Shut-down
MTBPR	Mean Time Between Premature Removals
MTBR	Mean Time Between Removals
MTBT	Mean Time Between Trouble
MTBUR	Mean Time Between Unscheduled Removals
MTD	Maintenance Training Device
MTE	Manual Test Equipment
MTG	Mounting
MTGC	Mounting Center
MTI	Multi Tank Indicator
MTN	Motion
MTO	M{t{o
MTO	Maximum Take-Off
MTOGW	Maximum Takeoff Gross Weight
MTOP	Maintenance Task Operating Plan
MTOW	Maximum Design Takeoff Weight
MTOW	Maximum Takeoff Weight
MTP	Maintenance and Test Panel (AFS)
MTR	Manufacturing Tolerance Requirement
MTR	Meter
MTS	Maintenance Training Simulator
MTTF	Mean Time to Failure
MTTR	Mean Time to Repair
MTTUR	Mean Time to Unscheduled Removal
MTUR	Mean Time Between Unscheduled Removals
MTW	Maximum Design Taxi Weight
MTW	Maximum Taxi Weight
MTXW	Maximum Taxi Weight
MU	Management Unit
MUX	Multiplex, Multiplexer
MV	Multivibrator
MVDR	Multiple VHF Data Radio
MVT	Movement
MWARN	Master Warning
MWC	Master Warning Computer
MWG	Maintenance Working Group
MWP	Master Warning Panel
MWS	Master Warning System
MXR	Mixer
MZFCG	Maximum Zero Fuel Center of Gravity
MZFW	Maximum Design Zero Fuel Weight
MZFW	Maximum Zero Fuel Weight