B

B
B	Blue
B/B	Back-Beam
B/C	Business Class
B/D	Bottom of Descent
BAABI	Basic Approved ATA Breakdown Index
BAF	Baffle
BAF	BITE Access Function
BAFO	Best and Final Offer
BAG	Bandwidth Allocation Gap
BAL	Basic Assembly Language
BARC	Barometric Altitude Rate Computer
BARO	Barometric
BAS	Bleed Air System
BAT	Battery (Electrical)
BATLC	Battery Line Contactor
BB	Building Block
BBAND	Broadband
BBRG	Ball Bearing
BC	Baggage Container Train
BCD	Binary Coded Decimal
BCDS	BITE Centralized Data System
BCF	Brake Cooling Fan
BCL	Battery Charge Limiter
BCM	Backup Control Module
BCN	Beacon
BCRC	Bulk Crew Rest Compartment
BCRU	Battery Charge and Rectifier Unit
BCS	Brake Control System
BCU	Brake Control Unit
BCV	Bleed Control Valve
BCVS	Bulk Cargo Video System
BDLI	Bundesverband der Deutschen Luft-und Raumfahrt Industrie
BEL CRK	Bellcrank
BER	Beyond Economical Repair
BETW	Between
BEV	Bevel
BEW	Basic Empty Weight
BFDAS	Basic Flight Data Acquisition System
BFE	Buyer Furnished Equipment
BFO	Beat Frequency Oscillator
BFR	Buffer
BG	Build Group (Assembly Group)
BGAN	Broadband Global Area Network
BGC	Build Group Component
BGM	Boarding Music
BGS	Build Group Stack-Up
BH	Block Hours
BHD	Bulkhead
BIOS	Basic Input Output System
BIST	Built-in Self Test
BITE	Built-in Test Equipment
BIU	BITE Interface Unit
BK	Black
BK UP	Back Up
BKFLW	Backflow
BKUP	Backup
BL	Bleed
BLC	Basic Lines Catalog
BLES	Brake Life Extension System
BLG	Body Landing Gear
BLK	Black
BLK	Block
BLKT	Blanket
BLOW	Blower
BLST	Ballast
BLT	Bolt
BLV	Bleed Valve
BLW	Below
BLWG	Blowing
BLWR	Blower
BM	Beam
BM	Bronze Mesh
BMC	Bleed Monitoring Computer
BMI	BITE Monitoring Interface
BMPS	Bleed Monitoring Pressure Sensor
BMS	Bulletin MÙtÙo SpÙcial
BMU	Battery Management Unit
BND	Bonded
BNDG	Bonding
BNDRY	Boundary
BNR	Binary
BNR	Binary Words
BO	Blocking Oscillator
BO	Body Odour
BOH	Brake-Off Weight
BOMU	Bleed and Overheat Monitoring Unit
BOS	Business Operational Support
BOT	Begin of Tape
BOT	Bottom
BP	Bottom Plug
BPI	Brake Pressure Indicator
BPS	Backup Power Supply
BPS	Bleed Pressure Sensor
BPTU	Brake Pedal Transmitter Unit
BR	Brown
BRC	Brace
BRD	Braid
BRDG	Bridge
BRG	Bearing
BRK	Brake
BRKNG	Braking
BRKR	Breaker
BRKS	Brakes
BRKT	Bracket
BRT	Bright, Brightness
BSC	Balanced Scorecard
BSCS	Braking and Steering Control System
BSCU	Braking/Steering Control Unit
BSHG	Bushing
BSPKI	Basic Services Public Key Infrastructure
BSU	Beam Steering Unit
BT	Bus Tie
BTAC	Bus Tie AC Contactor
BTC	Bus Tie Contactor
BTCM	Brake Temperature Compensation Module
BTDC	Bus Tie DC Contactor
BTL	Bottle
BTMS	Brake Temperature Monitoring System
BTMU	Brake Temperature Monitoring Unit
BTN	Button
BTR	Bus Tie Relay
BTS	Base Transceiver Station
BTS	Bleed Temperature Sensor
BTSTRP	Buttstrap
BTU	British Thermal Unit
BTV	Brake to Vacate
BU	Battery Unit
BUS	Busbar
BUSS	Back-Up Speed Scale
BWS	Body Wheel Steering
BYDU	Back-Up Yaw Damper Unit
BYP	Bypass