U.S. DEPARTMENT OF TRANSPORTATION
FEDERAL AVIATION ADMINISTRATION
Air Traffic Organization Policy

ORDER
JO 7340.2D
Effective Date:
May 2, 2013
 
     

Subject:  Contractions
       Includes: Change 1 effective 8/22/13 and Change 2 effective 12/12/13    
 

[Back to Section 2. Encode]

H

Definition

Contraction

Usage

hail (greater than 3/4)

GR

METAR

hail showers

SHGR

METAR

hail showers (small)

SHGS

METAR

hailstones

HLSTO

NWS

half

HLF

GEN

handoff point

HOP

ATC

handover word

HOW

ATC

hangar

HNGR

GEN

hard freeze

HDFRZ

NWS

Hawaiian Air Defense Division

HADD

GEN

Hawaiian Air Defense Identification Zone

HADIZ

GEN

Hawaiian Air National Guard

HANG

GEN

Hawaiian Defense Area

HADA

GEN

hazard

HAZ

GEN

hazard beacon

HBN

ICAO

hazardous area reporting service

HARS

ATC

hazardous inflight weather advisory service

HIWAS

GEN

hazardous material

HAZMAT

ICAO

haze

HZ

METAR

Head of State status

HEAD

ICAO

heading

HDG

ICAO

headquarters

HQ

GEN

headwind

HDWND

ATC

heater

HTR

GEN

heavy

HVY

GEN

heavy (to qualify weather phenomena, e.g. XXRA heavy rain)

XX

ICAO

hectopascal

HPA

ICAO

height

HGT

GEN

height above airport

HAA

GEN

height above landing

HAL

GEN

height above touchdown

HAT

GEN

helicopter

HEL

ICAO

helicopter operations

HOP

GEN

heliport

HELI

GEN

here

ER

ICAO

here

HR

GEN

hertz

Hz

GEN

heterodyne

HTN

GEN

high

HI

NWS

high altitude balloon

HIBAL

GEN

high and very high frequency direction finding stations

HVDF

ICAO

high clouds visible

HCVIS

NWS

high density traffic airport

HDTA

GEN

high density traffic zones

HDATZ

ATC

high frequency

HF

GEN

high frequency direction finding station

HDF

ICAO

high index

HX

NWS

high intensity approach light system

HIALS

GEN

high intensity runway lights

HIRL

GEN

high level forecast

HIFOR

NWS

high voltage

HV

GEN

higher

HYR

ICAO

highest temperature

HITMP

NWS

highest temperature equaled for all time

HIEAT

NWS

highest temperature equaled for the month

HIEFM

NWS

highest temperature equaled so early

HIESE

NWS

highest temperature equaled so late

HIESL

NWS

highest temperature exceeded for all time

HIXAT

NWS

highest temperature exceeded for the month

HIXFM

NWS

highest temperature exceeded so early

HIXSE

NWS

highest temperature exceeded so late

HIXSL

NWS

highway

HWY

GEN

hilltop

HLTP

NWS

hold for release

HFR

ATC

holding

HLDG

ICAO

holding as previously instructed

HAPI

ATC

holding pattern

HP

GEN

holiday

HOL

GEN

homing beacon

HB

ATC

horizon

HRZN

GEN

Horizontal Dilution of Precision

HDOP

ATC

hospital aircraft

HOSP

ICAO

hour

HR

ICAO

household effects

HHE

GEN

how will arrival report be filed concerning

HIRIV

ATC

however

HWVR

GEN

Hudson Valley

HDSVLY

NWS

humanitarian mission

HUM

ICAO

hundred

HND

GEN

hurricane

HURCN

NWS

hurricane report

HUREP

NWS

hydraulic

HYD

GEN

hydrographic

HYDRO

GEN

 

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