I

I
I	Inertial
I	Invoice Card
I/I	Inspection/Interval
I/O	Input/Output
I/P	Input
I/P	Intercept Point
I/P	Intercept Profile
IAE	International Aero Engines
IAF	Initial Approach Fix
IAS	Indicated Airspeed
IAS	Inspection Approval Sheet
IASC	Integrated Air System Controller
IATA	International Air Transport Association
IAW	In Accordance with
IAWP	Initial Approach Waypoint
IBIT	Initiated BITE
IBLC	Inter-Bus Line Contactor
IBN	Identification Beacon
IBU	Integrated Ballast Unit
IC	Integrated Circuit
IC	Invoice Control Card
ICA	Instructions for Continued Airworthiness
ICAO	International Civil Aviation Organisation
ICC	Integrated Change Control
ICCAIA	Inter Co-ordinating Council of Aerospace Industries Asso
ICD	Interface Control Document
ICE	In Circuit Emulation
ICP	Integrated Control Panel
ICPS	Integrated Control Panel System
ICS	Independent Check Sheet
ICU	IGGS Control Unit
ICU	IGGS Controller Unit
ICU	Isolation Control Unit
ICY	Interchangeability
ICY-CS	Interchangeability Compliance Sheet
ID	Identification
ID	Inside Diameter
ID PL	Identification Plate
IDC	Instrument Display Catalog
IDENT	Identification, Identifier, Identify
IDG	Integrated Drive Generator
IDLS	Internal Door Locking System
IDP	Integrated Data Processing
IDU	Interactive Display Unit
IF	Initial Fix
IF	Intermediate Frequency
IFDDS	to be removed
IFE	In-Flight Entertainment
IFEC	In-Flight Entertainment Center
IFP	In Flight Performance Computation Program
IFPA	InFlight Performance Application
IFR	Instrument Flight Rules
IFS	Inner Fixed Structure
IFTB	In flight Turn back
IGA	Intermediate Gain Antenna
IGB	Inlet Gear Box
IGDS	Inert Gas Distribution System
IGGS	Inert Gas Generation System
IGN	Ignition
IGSC	Inert Gas System Control
IGV	Inlet Guide Vane
IGWI	Integrated Galley Warming Insert
IIPD	Illustrated Initial Provisioning Document
ILLUM	Illumination
ILLUMD	Illuminated
ILS	Instrument Landing System (LOC and G/S)
IM	ILS Inner Marker
IMA	Integrated Modular Avionics
IMACS	Information Management Aircraft-ground Communication System
IMC	Indirect Maintenance Cost
IMCC	Information Management Common Chassis
IML	Integration Maintenance Load
IMM	Immediate
IMR	Interlock Monitoring Relay
IMU	Inertial Measurement Unit
IN	HG Inches of Mercury
in	Inch
IN	Inch
INA	Initial Approach
INB	Inbound
INBD	Inboard
INCLG	Including
INCR	Increase
INCR	Increment
IND	Indicator
INDEP	Independent
INDG	Indicating
INFO	Information
INHI	Inhibit
INHIB	Inhibit, Inhibited, Inhibition
INIT	Initial(ization)
IN-LBS	Inch-pounds
INOP	Inoperative
INP	Input
INR	Inner
INRTL	Inertial
INS	Inertial Navigation System
INSP	Inspection
INST	Instinctive
INST	Instrument
INSTL	Installation
INSTLLD	Installed
INSTM	Instrumentation
INSUL	Insulate, Insulation, Insulator
INT	Interior
INT	Interrupt
INT	Intersection
INTCON	Interconnection
INTCP	Intercept
INTEG	Integral
INTEG	Integrally
INTEN	Intensity
INTERCOM	Intercommunication
INTFC	Interface
INTG	Integral
INTGT	Integrate, Integrating
INTL	Internal
INTLK	Interlock
INTMD	Intermediate
INTMT	Intermittent
INTPH	Interphone
INTR	Interior
INTRG	Interrogate, Interrogator
INTRPT	Interrupt
INU	Inertial Navigation Unit
INV	Inverter
INWP	Intermediate Waypoint
IOC	Indirect Operating Cost
IOM	Input/Output Module
IOR	Immediate Operational Requirement
IoT	Internet of Things
IP	Intermediate Pressure
IP	Internet Protocol
IP	Invoice Packing Card
IPC	Illustrated Parts Catalog
IPC	Intermediate Pressure Bleed Check Valve
IPCOM	Internet Protocol Communication
IPCT	Initial Provisioning Coordination Team
IPCU	Ice Protection Control Unit
IPCV	Intermediate Pressure Check Valve
IPD	Illustrated Parts Data
IPD	Illustrated Provisioning Document
IPD	Initial Provisioning Data
IPDU	Ice Protection Data Unit
IPL	Illustrated Parts List
IPPU	Instrumentation Position Pick-off Unit
IPRAM	Integrated Prerecorded Announcement Module
IPS	Incorrect Phase Sequence
IPSM	Intelligent Power Supply Module
IPT	Inadvertent Power Transfer
IPTCC	Intermediate Pressure Turbine Case Cooling
IPV	Indicator Para Visual
IR	Inertial Reference
IRAN	Inspection and Repair As Necessary
IRD	Integrated Receiver Decoder
IRDC	Interface Remote Data Concentrator
IRDM	Integrated Receiver Decoder Module
IRP	Integrated Refuel Panel
IRQ	Interrupt Request
Irr.M	Irritating Material
IRS	Inertial Reference System
IRS	Inspection Report System
IRU	Inertial Reference Unit
ISA	Inertial Sensor Assembly
ISA	International Standard Atmosphere
ISB	Inspection Service Bulletin
ISB	Inter-System Bus
ISDN	Integrated Services Data Network
ISDN	Integrated Services Digital Network
ISDPL	Inadvertent Slide Deployment Prevention Light
ISDS	In Service Data Sharing
ISDU	Inertial Sensor Display Unit (IRS)
ISG	Instrument Symbol Generator Unit
ISI	In Service Information
ISIS	Integrated Standby Instrument System
ISM	Illumination Sensor Module
ISM	In-Service Monitoring
ISO	International Standardization Organisation
ISOL	Isolation
ISP	Integrated Static Probe
ISPS	In-Seat Power Supply
ISPSS	In-Seat Power Supply System
ISPSU	In-Seat Power Supply Unit
ISS	Inertial Sensor System
ISU	Inertial Sensor Unit
ISWL	Isolated Single Wheel Load
IT	Interruption
ITCM	Initial Technical Coordination Meeting
ITD	Inspection Technical Dossier
ITP	In-Trail Procedure
IUL	In-Use Light
IV	Isolation Valve
IVASEB	Integrated Video and Audio Seat Electronic Box
IVS	Inertial Vertical Speed
IWDL	Internal Wireless Data Link