| | | |
| AC | Advisory Circular | FAA | |
| AC | Alternating Current | | |
| ACARS | ARINC Communications Addressing and Reporting System | | |
| ACES | Advanced Cabin Entertainment System | | |
| ACK | Acknowledge receiving data | | |
| ACO | Aircraft Certification Office | FAA | |
| ACSS | Aviation Communication and Surveillance Systems | | |
| ACU | Antenna Combining Unit | Panasonic | |
| AD | Airworthiness Directive | FAA | |
| ADB | Area Distribution Box | | |
| ADC | Air Data Computer | | |
| ADC | Analog to Digital Converter | | |
| ADIRS | Air Data/Inertial Reference Unit | | |
| ADPCM | Adaptive Differential Pulse Coded Modulation | | |
| ADPCU | Advanced Digital Passenger Control Unit | | |
| ADS-B | Automatic Dependent Surveillance - Broadcast | | |
| AEG | Aircraft Evaluation Group | FAA | |
| AEM | Anodyne Electronics Manufacturing | | |
| AFDAU | Auxiliary Flight Data Acquisition Unit | | |
| AFMS | Airplane Flight Manual Supplement | | |
| AFT | Towards the Stern of the ship/aircraft | | |
| AI | Aircraft Interface | | |
| AMCU | Advanced Master Control Unit | | |
| AR | Authorization Required | Honeywell | |
| AR | Authorized Representative | FAA | |
| ARINC | Aeronautical Radio, Incorporated | General | |
| ASCU | Analog to Serial Converter Unit | | |
| ASEB | Audio Seat Electronics Box | | |
| ASIC | Application Specific Integrated Circuits | | |
| AT | Auto Throttle | Honeywell | |
| ATA | Air Transport Association | | |
| ATC | Air Traffic Control | | |
| ATDL | Air Transport Data Link | | |
| AVC | Audio/Video Controller | | |
| AVOD | Audio/Video On Demand | | |
| BCC | Binary-Coded Checksum | | |
| BCD | Binary Coded Decimal or Data | | |
| BGM | Background Music or Boarding Music | | |
| BITE | Built-In Test Equipment | | |
| BL | Butt Line | General | |
| BTSFRU | Base Transceiver Station Radio Frequency Unit | Panasonic | |
| CB | Circuit Breaker | | |
| CCITT | Consultative Committee International, Telephone and Telegraph | | |
| CCR | Credit Card Reader | | |
| CCTV | Closed Circuit Television | | |
| CDR | Compact Disk Reproducer | | |
| CEPT | Conference European on Postal and Communications Administration | | |
| CFR | Code of Federal Regulations (FAA Regulations) | FAA | |
| CI | Conductivity Index | SMS | |
| CLR | Clear | | |
| CM | Continuous Monitoring | | |
| CMC | Canadian Marconi Company | CMC | |
| CMC | Central Maintenance Computer | | |
| CMEU | CMS Memory Expansion Unit | | |
| CMT | Cabin Management Terminal | | |
| CMU | Communications Management Unit | Honeywell | |
| COTS | Commercial off-the-shelf | | |
| CP | Crew Panel | | |
| CPMU | Cabin Passenger Management Unit | | |
| CPU | Central Processing Unit | | |
| CRFMU | Cellphone Radio Frequency Management Units | Panasonic | |
| CRS | Certified Repair Station | FAA | |
| CT | Crew Terminal | | |
| CTU | Cabin Telecommunication Unit | | |
| CVM | Comparative Vacuum Monitoring | SMS | |
| DA | Disk Array | | |
| DAC | Digital to Analog Converter | | |
| DAR | Designated Airworthiness Representative | FAA | |
| DAS | Designated Alteration Station | FAA | |
| DAU | Delta Acquisition Unit | | |
| DC | Direct Current | | |
| dCVM | Differential Comparative Vacuum Monitoring | SMS | |
| DDA | Digital Discreet Adapter | Honeywell | |
| DDS | Designated Alteration Station (DAS) | | |
| DE | Delaware | | |
| DE | Delta Engineering | | |
| DER | Designated Engineering Representative | FAA | |
| DIU | Data Interface Unit | | |
| DMU | Data Management Unit | | |
| DO | Document Number System | RTCA | |
| DOA | Designated Option Authorization | | |
| DPCU | Digital Passenger Control Unit | | |
| DSC | Digital Signal Controller (Microcontroller) | | |
| DSEB | Digital Seat Electronics Box | | |
| DSU | Digital Server Unit | | |
| DTA | Damage Tolerance Analysis | | |
| DTI | Damage Tolerance Inspection | ICA | |
| EADB | Enhanced Area Distribution Box | | |
| ECI | Engineering Compliance Inspection | | |
| ECLS | Enhanced Cabin Lighting System | General | |
| EDU | Electronic Display Unit | | |
| EE | Emergency Equipment | | |
| EEMU | Enhanced Expansion Module Unit | CMC | |
| EEPROM | Electrically Erasable Programmable Read-Only Memory | | |
| EFB | Electronic Flight Bag | | |
| EFDB | Enhanced Floor Disconnect Box | | |
| EGNOS | European Geostationary Navigation Overlay Service | Honeywell | |
| ELD | Electrical Load Data | | |
| ELS/EHS | Elementary & Enhanced Surveillance | | |
| EMI | Electromagnetic interference | | |
| EPESC | Enhanced Passenger Entertainment System Controller | | |
| EPL | Emergency Path Lighting | General | |
| EPSSC | Enhanced Passenger Service System Controller | | |
| ES | Ethernet Switch | | |
| ESA | Electronically Steered Antenna | | |
| ESD | Electronic Safety Device | FAA | |
| ESU | Ethernet Switch Unit | | |
| ETR | Entertainment Tape Reproducer | | |
| EVSCU | Enhanced Video System Control Unit | | |
| EWIS | Electrical Wiring Interconnect System | All | |
| FA | Flight Attendant | | |
| FAA | Federal Aviation Administrator | FAA | |
| FANS | Future Air Navigation System | Honeywell | |
| FAR | Federal Aviation Regulations | | |
| FCAS | Fatigue Critical Alteration Structure | FAA | |
| FCBS | Fatigue Critical Baseline Structure | FAA | |
| FCH | Fiber Channel Hub | | |
| FDB | Floor Disconnect Box | | |
| FDDU | Floppy Disk Drive Unit | | |
| FDR | Flight Data Recorder | | |
| FEA | Finite Element Analysis | All | |
| FEM | Finite Element Model | All | |
| FFWD | Fast Forward | | |
| FMEA | Failure Modes & Effects Analysis | | |
| FMS | Flight Management System | | |
| FPGA | Field-Programmable Gate Array | | |
| FRM | Front Row Monument | | |
| FS | File Server | | |
| FSDO | Flight Standards District Office | FAA | |
| FWD | Forward | | |
| G1 | Sensing Galley 1 | CVM | |
| G2 | Sensing Galley 2 | CVM | |
| GBAS | Ground-Based Augmentation System | Honeywell | |
| GC | Game Controller | | |
| GC | Compensation Galley | CVM | |
| GMT | Greenwich Mean Time | | |
| GND | Ground Test Plan | | |
| GNSSU | Global Navigation System Sensor Unit | Honeywell | |
| GPS | Global Positioning System | Honeywell | |
| GS | Glide Slope | Honeywell | |
| HA-leg | Hold-to-Altitude-leg | Honeywell | |
| HAT | Honeywell Aerospace Trading | Honeywell | |
| HDDA | Hard Disk Drive Array | | |
| HF | High Frequency (radio) | Honeywell | |
| HR | Heat Release | | |
| HT | Heath Tecna | HT | |
| I/O | Input/Output | | |
| IAC | Integrated Avionics Computer | Honeywell | |
| ICA | Instructions for Continued Airworthiness | | |
| iCMT | Interactive Control Monitoring Unit | | |
| ICPMS | Interactive Cabin Passenger Management System | | |
| ID | Identification | | |
| IFE | In-Flight Entertainment | Panasonic | |
| IFES | In-Flight Entertainment System | | |
| ILS | Instrument Landing System | Honeywell | |
| IP | Issue Paper | FAA | |
| IRS | Inertia Reference System | | |
| IRU | Inertia Reference Unit | | |
| ISPSS | In-Seat Power Supply System | KID/Astronics | |
| IUL | In-Use Light (115VAC Power) | | |
| IVAS | Interactive Audio Video System | | |
| IVASEB | Integrated Video Audio Seat Electronics Box | | |
| IVCP | In-Seat Video Cassette Player | | |
| IVS | In-Seat Video System | | |
| LAC | Local Area Controller | | |
| LAN | Local Area Network | | |
| LBL | Left Butt Line | General | |
| LCD | Liquid Crystal Display | | |
| LED | Light Emitting Diode | General | |
| LED | Light Emitting Diode | | |
| LH | Left Hand | General | |
| LNAV | Lateral Navigation | Honeywell | |
| LOC | Localizer | Honeywell | |
| LOPA | Layout of Passenger Arrangement | General | |
| LPV | Localizer Performance (with) Vertical (Guidance) | Honeywell | |
| LRU | Line Replaceable Unit | | |
| LSK | Line Select Key | | |
| LVEC | Lower Video Equipment Center | | |
| MagVar | Magnetic Variation | Honeywell | |
| MASC | Matsushita Avionics System Corporation | | |
| MBU | MPEG Broadcast Unit | | |
| MCU | Microcontroller Unit | | |
| MD | Malfunction Defect | FAA | |
| MDDU | Multi-Purpose Disk Drive Unit | | |
| ME | Media Encoder | | |
| MIC | Microphone | | |
| MIDO | Manufacturing Inspection District Office | FAA | |
| MIPS | Million Instructions Per Second | | |
| MPEG | Motion Picture Expert Group | | |
| MS | Media Server | | |
| MTBF | Mean Time Between Failure | | |
| MUX | Main Multiplexer | | |
| N/A | Not Affected or Not Applicable | | |
| NAK | Negative Acknowledge of Transmission | | |
| NDT | Non-Destructive Testing | | |
| NMI | Need More Information | | |
| NTSC | National Television Systems Committee | | |
| NVM | Non-Volatile Memory | | |
| NVRAM | Non-Volatile RAM | | |
| ODA | Organization Delegation Authorization | FAA | |
| ODARF | Organization Designed Airworthiness Representative Manufacturing | FAA | |
| OLED | Organic Light-Emitting Diode display | | |
| OML | On-board Media Loader | | |
| OS | Operating System | | |
| OU | Outlet Unit (115VAC Power) | | |
| OVHD | Overhead | | |
| PA | Passenger Address | | |
| PAC | Panasonic Avionics Corporation | | |
| PAMN | PA Matching Network | | |
| PAX | Passengers | | |
| PC | Production Certificate | FAA | |
| PCM | Pulse Coded Modulation | | |
| PCU | Passenger Control Unit | | |
| PED | Portable Electronic Device | | |
| PES | Passenger Entertainment System | | |
| PLD | Programmable Logic Devices | | |
| PLR | Production Limitation Record | FAA | |
| PMA | Parts Manufacturing Approval | FAA | |
| PNL | Project Notification Letter | All | |
| POR | Power On Reset | | |
| PPH | Pounds per Hour | | |
| PRAM | Pre-Recorded Announcement Machine | | |
| PSAC | Plan for Software Aspects of Certification | | |
| PSE | Primary Structure Element | FAA | |
| PSEB | Premium Seat Electronics Box | | |
| PSS | Passenger Service System | | |
| PSSC | Passenger Service System Controller | | |
| PSU | Passenger Service Unit | General | |
| PSUD | Passenger Service Unit Decoder | | |
| PSV | Power Supply, AVOD | | |
| PVIS | Passenger Visual Information System | | |
| PWM | Pulse-width modulation | | |
| QAM | Quadrature Amplitude Modulation | | |
| QMU | QAM Modulator Unit | | |
| RADVR | Random Access Device Video Reproducer | | |
| RBL | Right Butt Line | General | |
| RF | Radio Frequency | | |
| RFC | Request for Conformity | FAA | |
| RFDA | Radio Frequency Distribution Amplifier | | |
| RFI | Radio Frequency Interference | | |
| RF-leg | Radius-to-Fix-leg | Honeywell | |
| RH | Right Hand | General | |
| RISC | Reduced Instruction Set Computer | | |
| RJM | Remote Jack Module | | |
| RJU | Remote Jack Unit | | |
| RNAV | Area Navigation | Honeywell | |
| RNP | Required Navigation Performance | Honeywell | |
| ROM | Read Only Memory (Flash Memory) | | |
| RTCA | Radio Technical Commission for Aeronautics | General | |
| RTD | Resistance to Digital Converter | | |
| SAAAR | Special Aircraft and Aircrew Authorization Required | Honeywell | |
| SAE | Society of Automotive Engineers | | |
| SAE | Society of Automotive Engineers | | |
| SATCOM | Satellite Communications | | |
| SBAS | Space-Based Augmentation System | Honeywell | |
| SC-A | System Controller-Audio | Panasonic | |
| SCI | Software Configuration Index | | |
| SCM | Software Configuration Management | | |
| SCMA | Specification Control Model Assemble | | |
| SCMP | Software Configuration Management Plan | | |
| SCR | Software Change Reports | | |
| SCRB | Software Control Review Board | | |
| SCS | Smart Cabin System | gogo | |
| SD | Smoke Density | | |
| SDP | Software Development Plan | | |
| SDU | Seat Display Unit | | |
| SEB | Seat Electronics Box | | |
| SEH | Simple Electronic Hardware | | |
| SEU | Seat Electronics Unit | | |
| SFAR | Special Federal Aviation Regulation | | |
| SLS | Sensor Lead Socket | CVM | |
| SMS | Structureal Monitoring Systems | CVM | |
| SPM | Seat Power Module | | |
| SPR | Systems Problem Report | | |
| SQAP | Software Quality Assurance Plan | | |
| SRR | Software Release Report | | |
| SSB | System Setup Box | | |
| STC | Supplemental Type Certificate | FAA | |
| TACAN | TACtical Aid to Navigation | Honeywell | |
| TAD | Transport Aircraft Directorate | FAA | |
| TAIL | Transport Airplane Issues List | FAA | |
| TAP | Terminal Area Procedure | Honeywell | |
| TBD | To be Determined | | |
| TC | Type Certificate | | |
| TCDS | Type Certificate Data Sheet | FAA | |
| TFT | Thin Film Transistor Liquid-Crystal Display | | |
| TIA | Type Inspection Authorization FAA Form 8110-1 | FAA | |
| T-PED | Transmitting Portable Electronic Device | | |
| TRU | Transformer Rectifier Unit | | |
| TSO | Technical Standard Order | FAA | |
| TTL | Transistor–Transistor Logic (5VDC Logic) | | |
| TU | Tapping Unit | | |
| TVSA | Transverse Vertical Separation Analysis | | |
| UART | Univeral Async Receiver Transmitter | | |
| UM | Unit Member | FAA | |
| USB | Universal Serial Bus | | |
| VASEB | Video/Audio Seat Electronics Box | | |
| VBLIU | Video Balanced Line Interface Unit | | |
| VCC | Video Control Center | | |
| VCP | Video Cassette Player | | |
| VDC | Voltage Direct Current | | |
| VDU | Video Display Unit | | |
| VEADB | Video Enhanced Area Distribution Box | | |
| VES | Video Entertainment System | | |
| VGP | Vertical Glide Path | Honeywell | |
| VHS | Video Home System | | |
| VMU | Video Modulator Unit | | |
| VNAV | Vertical Navigation | Honeywell | |
| VPATH | Vertical Path | Honeywell | |
| VSCU | Video System Control Unit | | |
| VSS | Video Signal Splitter | | |
| VTR | Video Tape Reproducer | | |
| WAAS | Wide Area Augmentation System | Honeywell | |
| WAD | Weight and Arm Data | | |
| WDT | Watch Dog Timer | | |
| ZIU | Zone Interface Unit | | |
| ZT | Zone Terminator | | |
| ZTC | Zone Telephone Controller | | |