Lden/Lnight

Lden/Lnight

day-evening-night/night-time average sound level

More lexicon entries

Term Definition
AFM

aircraft flight manual

DOA

design organisation approval

IFALPA

International Federation of Air Line Pilots’ Associations

OEM

Original Equipment Manufacturer

IAW

initial airworthiness

IRI

instrument rating inspector

RTF

radiotelephony

VLJ

very light jet

TAA

technical assistance agreement

MLRs

manuals, logs and records

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