AIRCRAFT ABBREVIATIONS

BACK

U/FLOOR Underfloor
U/S Unserviceable
UAC Upper Area Control Centre
UART Universal Asynchronous Receiver Transmitter
UD "Document Unit (""UnitÙ Documentaire"")"
UDC Upper Deck Cargo
UDCC Upper Deck Cargo Compartment
UDL Unit Detail Listing
UF Underfrequency
UHF Ultra High Frequency
ULB Underwater Locator Beacon
ULD Unit Load Device
UNBAL "Unbalance, Unbalanced"
UNCPLG Uncoupling
UNCRCTD Uncorrected
UND Under
UNIV Universal
UNLK Unlock
UNLKD "Unlocked, Unlocking"
UNSD Unused
UPR Upper
UR Utilization Rate
US Under Speed
US United States
UTA Upper Control Area
UTC Universal Time Coordinated
UUT Unit Under Test
UV Ultra-Violet
UV Under Voltage
UVEROM Ultra Violet Erasable Read Only Memory
UWY Upper Airway
UADF User Application Definition File
UDCD Upper Deck Cargo Door
UDP User Datagram Protocol
UEB Underseat Electronic Box
UICDL User Interface Configuration Download List
ULLI Understep LED Light
UMS User Modifiable Software
UPLK Uplock
UPPR Upper
USB Universal Serial Bus
UWBS Universal Wireless Backbone System
UD Upper Deck
UERF Uncontained Engine Rotor Failure
UMTS Universal Mobile Telecommunications System
UNDERPRESS Underpressure
UPLKD Uplocked
USB Upper Sideband

BACK