• A/C = Aircraft.
  • AC = Advisory Circular.
  • ADL = Allowable Damage Limits.
  • AOA = Angles of Attack.
  • AOG = Aircraft On Ground.
  • BL = Butt Line. The origin of the butt line (BL=0 or y=0) is located at the aircraft plane of symmetry.
  • BVID = Barely Visible Impact Damage.
  • CC = Cooling Climb.
  • CDT = Critical Damage Thresholds.
  • CFRP = Carbon Fibre Reinforced Polymer.
  • CP = Center of Pressure.
  • DoD = Department of Defense.
  • EASA = European Aviation Safety Agency.
  • EDTO = Extended Diversion Time Operations.
  • ELAC = Elevator and Aileron Computers: ELAC1, ELAC2.
  • EOP = End of Pipe.
  • ETOPS = Extended-range Twin-engine Operational Performance Standards.
  • FAA = Federal Aviation Administration.
  • FAC = Flight Augmentation Computer: FAC1, FAC2.
  • FBO = Fan Blade Out.
  • FS = Fuselage station. The origin of the fuselage station (FS=0 or x=0) is placed at the nose tip or approximately 50 to 100 inches ahead of the nose.
  • HGW = High-Gross Weight.
  • IATA = International Air Transport Association.
  • ICAO = The International Civil Aviation Organization.
  • ISA = International Standard Atmosphere.
  • LROPS = Long Range Operations.
  • MRO = Maintenance, Repair, and Operations.
  • MTOW = Maximum Takeoff Weight.
  • NOAA = National Oceanic and Atmospheric Administration.
  • NOE = Notice of Escapement. Example: The supplier informed Boeing that a nonconforming product may have been shipped.
  • OAT = Outside Air Temperature.
  • RDL = Repairable Damage Limits.
  • RFI = Request for Information.
  • RR = Rolls-Royce.
  • SAT = Static Air Temperature.
  • SDP = Standard Datum Plane.
  • SEC = Spoiler and Elevator Computers: SEC1, SEC2, SEC3.
  • SFCC = Slat Flap Control Computer
  • SNN = Supplier Nonconformance Notification.
  • SRM = Safety Risk Management.
  • STA = Station.
  • THS = Trimmable Horizontal Stabilizer.
  • TRB = Technical Review Board.
  • TRM = Technical Review Meeting.
  • URL = Ultra Long Range.
  • VARTM = Vacuum-Assisted Resin Transfer Molding.
  • VID = Visible Impact Damage.
  • WL = Water Line. The origin of the water line (WL=0 or z=0) is placed at the nose tip, at the ground, or approximately 100 to 200 inches below the nose tip.
  • WS = Wing Station.
  • XWB = eXtra Wide Body.

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