~ For DoD Flight Only ~
The information displayed on the right represents all approved component/condition Q-Codes for the category:

A Q-Code is the combination of two codes:
The component code (2nd and 3rd letters)
The condition code (4th and 5th letters)

The data on the right is grouped by component codes.
Slightly indented and directly below the component codes are their associated conditions codes.
 
Terminal and Enroute Navigation Q-Code Combinations
 
NA    ALL RADIO NAVIGATION FACILITIES
         AH    HOURS OF SERVICE ARE
         AS    UNSERVICEABLE
         AW    COMPLETELY WITHDRAWN
         TT    HAZARD
         XX   
 
NB    NDB
         AG    OPERATING BUT GROUND CHECKED ONLY, AWAITING FLIGHT CHECK
         AH    HOURS OF SERVICE ARE
         AS    UNSERVICEABLE
         AW    COMPLETELY WITHDRAWN
         CF    FREQUENCY CHANGED TO
         CI    IDENTIFICATION OR RADIO CALL SIGN CHANGED TO
         CM    DISPLACED
         CS    INSTALLED
         CT    ON TEST, DO NOT USE
         GI    UNMONITORED
         LF    INTERFERENCE FROM
         LG    OPERATING WITHOUT IDENTIFICATION
         LS    SUBJECT TO INTERRUPTION
         TT    HAZARD
         XX   
 
NC    DECCA
         AS    UNSERVICEABLE
         AW    COMPLETELY WITHDRAWN
         CS    INSTALLED
         XX   
 
ND    DME
         AG    OPERATING BUT GROUND CHECKED ONLY, AWAITING FLIGHT CHECK
         AH    HOURS OF SERVICE ARE
         AS    UNSERVICEABLE
         AW    COMPLETELY WITHDRAWN
         CF    FREQUENCY CHANGED TO
         CI    IDENTIFICATION OR RADIO CALL SIGN CHANGED TO
         CM    DISPLACED
         CS    INSTALLED
         CT    ON TEST, DO NOT USE
         LF    INTERFERENCE FROM
         LG    OPERATING WITHOUT IDENTIFICATION
         LS    SUBJECT TO INTERRUPTION
         TT    HAZARD
         XX   
 
NF    FAN MARKER
         AG    OPERATING BUT GROUND CHECKED ONLY, AWAITING FLIGHT CHECK
         AH    HOURS OF SERVICE ARE
         AS    UNSERVICEABLE
         AW    COMPLETELY WITHDRAWN
         CM    DISPLACED
         CS    INSTALLED
         TT    HAZARD
         XX   
 
NL    LOCATOR
         AG    OPERATING BUT GROUND CHECKED ONLY, AWAITING FLIGHT CHECK
         AH    HOURS OF SERVICE ARE
         AS    UNSERVICEABLE
         AW    COMPLETELY WITHDRAWN
         CF    FREQUENCY CHANGED TO
         CI    IDENTIFICATION OR RADIO CALL SIGN CHANGED TO
         CM    DISPLACED
         CS    INSTALLED
         CT    ON TEST, DO NOT USE
         LF    INTERFERENCE FROM
         LG    OPERATING WITHOUT IDENTIFICATION
         LS    SUBJECT TO INTERRUPTION
         TT    HAZARD
         XX   
 
NM    VOR/DME
         AG    OPERATING BUT GROUND CHECKED ONLY, AWAITING FLIGHT CHECK
         AH    HOURS OF SERVICE ARE
         AS    UNSERVICEABLE
         AW    COMPLETELY WITHDRAWN
         CF    FREQUENCY CHANGED TO
         CI    IDENTIFICATION OR RADIO CALL SIGN CHANGED TO
         CM    DISPLACED
         CR    TEMPORARILY REPLACED BY
         CS    INSTALLED
         CT    ON TEST, DO NOT USE
         LF    INTERFERENCE FROM
         LG    OPERATING WITHOUT IDENTIFICATION
         LS    SUBJECT TO INTERRUPTION
         TT    HAZARD
         XX   
 
NN    TACAN
         AG    OPERATING BUT GROUND CHECKED ONLY, AWAITING FLIGHT CHECK
         AH    HOURS OF SERVICE ARE
         AS    UNSERVICEABLE
         AU    NOT AVAILABLE
         AW    COMPLETELY WITHDRAWN
         CF    FREQUENCY CHANGED TO
         CI    IDENTIFICATION OR RADIO CALL SIGN CHANGED TO
         CM    DISPLACED
         CR    TEMPORARILY REPLACED BY
         CS    INSTALLED
         CT    ON TEST, DO NOT USE
         GA    NOT COINCIDENTAL WITH ILS/PAR
         GG    UNUSABLE BEYOND
         GH    UNUSABLE
         GI    UNMONITORED
         LF    INTERFERENCE FROM
         LG    OPERATING WITHOUT IDENTIFICATION
         LS    SUBJECT TO INTERRUPTION
         TT    HAZARD
         XX   
 
NT    VORTAC
         AG    OPERATING BUT GROUND CHECKED ONLY, AWAITING FLIGHT CHECK
         AH    HOURS OF SERVICE ARE
         AS    UNSERVICEABLE
         AW    COMPLETELY WITHDRAWN
         CF    FREQUENCY CHANGED TO
         CI    IDENTIFICATION OR RADIO CALL SIGN CHANGED TO
         CM    DISPLACED
         CR    TEMPORARILY REPLACED BY
         CS    INSTALLED
         CT    ON TEST, DO NOT USE
         LF    INTERFERENCE FROM
         LG    OPERATING WITHOUT IDENTIFICATION
         LS    SUBJECT TO INTERRUPTION
         TT    HAZARD
         XX   
 
NV    VOR
         AG    OPERATING BUT GROUND CHECKED ONLY, AWAITING FLIGHT CHECK
         AH    HOURS OF SERVICE ARE
         AS    UNSERVICEABLE
         AW    COMPLETELY WITHDRAWN
         CF    FREQUENCY CHANGED TO
         CI    IDENTIFICATION OR RADIO CALL SIGN CHANGED TO
         CM    DISPLACED
         CR    TEMPORARILY REPLACED BY
         CS    INSTALLED
         CT    ON TEST, DO NOT USE
         LF    INTERFERENCE FROM
         LG    OPERATING WITHOUT IDENTIFICATION
         LS    SUBJECT TO INTERRUPTION
         TT    HAZARD
         XX   
 
NX    DIRECTION FINDING STATION
         AH    HOURS OF SERVICE ARE
         AS    UNSERVICEABLE
         AW    COMPLETELY WITHDRAWN
         CF    FREQUENCY CHANGED TO
         CI    IDENTIFICATION OR RADIO CALL SIGN CHANGED TO
         CS    INSTALLED
         CT    ON TEST, DO NOT USE
         LT    LIMITED TO
         TT    HAZARD
         XX   
 
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