Aeronautical Terms beginning with L

L

Left (with reference to runway designation)

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L/MF

Low or Medium Frequency.

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LAA

Local Airport Advisory

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LAADR

Low Altitude Arrival/Departure Routing.

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LAAS

Local Area Augmentation System.

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LAHSO

Land and Hold Short Operations

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LAMP

Localized Aviation MOS Program

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LAST

Last observation before a break in coverage at a manual station

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lb

pound

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LCL

Lifted Condensation Level

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LDA

Localizer-type Directional Aid.

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LDA/PRM

Localizer Type Directional Aid/Precision Runway Monitor

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Ldg

Landing

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LDIN

Lead-In-Light System. Consists Of One Or More Series Of Flashing Lights Installed At Or Near Ground Level That Provides Positive Visual Guidance Along An Approach Path, Either Curving Or Straight, Where Special Problems Exist With Hazardous Terrain, Obstructions, Or Noise Abatement Procedures

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LEMAC

Leading Edge of the Mean Aerodynamic Chord.

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LF

Low Frequency

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LFC

Level of Free Convection

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LFR

Low-Frequency Radio Range.

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LI

Lifted Index

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LIFR

Low Instrument Flight Rules

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LIRL

Low Intensity Runway Lights

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LLWAS

Low Level Wind Shear Alert System

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LLWS

Low-Level Wind Shear

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LMM

Locator Middle Marker.

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LNAV

Lateral Navigation

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LO CIGS

Low Ceilings. Low clouds.

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LOA

Letter Of Agreement/Letter Of Authorization

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LOC

Localizer.

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LOC-I

Loss of Control In-flight.

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LOM

Locator Outer Marker.

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LOP

Line-of-position

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LORAN

Long Range Navigation. [Decommissioned in 2010]

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LP

Localizer Performance

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LPV

Localizer Performance with Vertical Guidance

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LRN

Long-Range Navigation

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LRNS

Long-Range Navigation System

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LRRS

Long Range Radar Station

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LST

Local Standard Time

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LTG

Lightning

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LTP

Landing Threshold Point

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LUAW

Line Up and Wait

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LVL CHG

Level Change

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LWR

Lower

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LZ

Landing Zone

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