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12/2/21 

Pilot/Controller Glossary 

FLAMEOUT

 An emergency condition caused by a 

loss of engine power. 

FLAMEOUT PATTERN

 An approach normally 

conducted by a single-engine military aircraft 
experiencing loss or anticipating loss of engine 
power or control. The standard overhead approach 
starts at a relatively high altitude over a runway 
(“high key”) followed by a continuous 180 degree 
turn to a high, wide position (“low key”) followed by 
a continuous 180 degree turn final. The standard 
straight-in pattern starts at a point that results in a 
straight-in approach with a high rate of descent to the 
runway. Flameout approaches terminate in the type 
approach requested by the pilot (normally fullstop). 

FLIGHT CHECK

 A call sign prefix used by FAA 

aircraft engaged in flight inspection/certification of 
navigational aids and flight procedures. The word 
“recorded” may be added as a suffix; e.g., “Flight 
Check 320 recorded” to indicate that an automated 
flight inspection is in progress in terminal areas. 

(See FLIGHT INSPECTION.) 
(Refer to AIM.) 

FLIGHT FOLLOWING

 

(See TRAFFIC ADVISORIES.) 

FLIGHT INFORMATION REGION

 An airspace of 

defined dimensions within which Flight Information 
Service and Alerting Service are provided. 

a. 

Flight Information Service. A service provided 

for the purpose of giving advice and information 
useful for the safe and efficient conduct of flights. 

b. 

Alerting Service. A service provided to notify 

appropriate organizations regarding aircraft in need 
of search and rescue aid and to assist such 
organizations as required. 

FLIGHT INFORMATION SERVICE

 A service 

provided for the purpose of giving advice and 
information useful for the safe and efficient conduct 
of flights. 

FLIGHT INFORMATION SERVICE

 

BROADCAST (FIS

B)

 A ground broadcast service 

provided through the ADS

B Broadcast Services 

network over the UAT data link that operates on 978 
MHz. The FIS

B system provides pilots and flight 

crews of properly equipped aircraft with a cockpit 
display of certain aviation weather and aeronautical 
information. 

FLIGHT INSPECTION

 Inflight investigation and 

evaluation of a navigational aid to determine whether 
it meets established tolerances. 

(See FLIGHT CHECK.) 
(See NAVIGATIONAL AID.) 

FLIGHT LEVEL

 A level of constant atmospheric 

pressure related to a reference datum of 29.92 inches 
of mercury. Each is stated in three digits that represent 
hundreds of feet. For example, flight level (FL) 250 
represents a barometric altimeter indication of 
25,000 feet; FL 255, an indication of 25,500 feet. 

(See ICAO term FLIGHT LEVEL.) 

FLIGHT LEVEL [ICAO]

 A surface of constant 

atmospheric pressure which is related to a specific 
pressure datum, 1013.2 hPa (1013.2 mb), and is 
separated from other such surfaces by specific 
pressure intervals. 

Note 1: A pressure type altimeter calibrated in 

accordance with the standard atmosphere: 

a. 

When set to a QNH altimeter setting, will 

indicate altitude; 

b. 

When set to a QFE altimeter setting, will 

indicate height above the QFE reference datum; 
and 

c. 

When set to a pressure of 1013.2 hPa 

(1013.2 mb), may be used to indicate flight levels. 

Note 2: The terms ‘height’ and ‘altitude,’ used in 

Note 

1 above, indicate altimetric rather than 

geometric heights and altitudes. 

FLIGHT LINE

 A term used to describe the precise 

movement of a civil photogrammetric aircraft along 
a predetermined course(s) at a predetermined altitude 
during the actual photographic run. 

FLIGHT MANAGEMENT SYSTEMS

 A comput-

er system that uses a large data base to allow routes 
to be preprogrammed and fed into the system by 
means of a data loader. The system is constantly 
updated with respect to position accuracy by 
reference to conventional navigation aids. The 
sophisticated program and its associated data base 
ensures that the most appropriate aids are automati-
cally selected during the information update cycle. 

FLIGHT PATH

 A line, course, or track along which 

an aircraft is flying or intended to be flown. 

(See COURSE.) 
(See TRACK.) 

FLIGHT PLAN

  Specified information relating to 

the intended flight of an aircraft that is filed 

PCG F