121.5 megahertz

Words for: Emergency Operations

emergency operations
situational awareness
unforecast adverse weather
communication/navigation system malfunction
thunderstorm detection equipment
thunderstorm penetration
anti-icing/deicing equipment
airspeed indication
frictional drag
cloud droplets
deicing equipment
Sublimation
preflight action
Preflight inspection
inflight emergency
thunderstorm clouds
alternator belt
electronic flight display malfunction
Display Failure / Reversionary Mode
Alternator/Generator Failure
alternator failure
Loadmeter
Cessna 172
master/alternator rocker switch
two-position battery master/alternator rocker switch
Pilotage
Dead Reckoning
hand-held transceiver
STBY BATT
PFD instrumentation
analog instrument failure
pneumatic system failure
transponder code 7600
unpressurized aircraft
VFR Conditions
IFR Conditions
outer FMS knob
flashing cursor
NRST — Nearest Airport
navigational aids
electronic databases
diverting
FMS knob
GPS Nearest Airport Function
airport identifier
lat/long coordinates
cyan box
NRST Page Group
CLR button
APT
AVGAS
MFD Page Groups
Nearest Airport Page Group
RNWY
APR
PROC Page Group
complacency
inoperative equipment
traffic avoidance
transponder-equipped aircraft
intruding targets
aural warnings
ILS 29
VOR/DME 06
VOR/DME 11
traffic alerting
transponders
aircraft system malfunctions
IIMCs — inadvertent instrument meteorological conditions
inadvertent instrument meteorological condition
inadvertent thunderstorm encounter
inadvertent thunderstorm penetration
loss of airspeed indication
precipitation static
maneuvering
aircraft controllability check
inadvertent icing encounter
extremities of the aircraft
complete loss of VHF communications
VHF
erroneous magnetic compass readings
high-pitched audio squealing
TAXI
generator failure
instrument failure
pitot/static system failure
Emergency
pitot or static system failure
overloading the operating generator(s)
troubleshoot generator failure
expedite cross-check
non-precision IAP
IIMC recovery
vestibular sense
IMC
MDA
MSA
other crewmembers
separation from natural and manmade obstacles
radar assistance
IMC weather conditions
VFR airports
services provided by ATC
Pilot capability for IFR flight
vectors to VFR airports
capable of conducting IFR flight
emergency airport
NAVAID status
emergency obstruction video map
emergency vectoring service
121.5 megahertz
homing capability
243.0 megahertz
airfield

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Plain English Meaning

It's the radio channel set aside worldwide for emergencies in aviation. If a pilot is in trouble or an aircraft's emergency beacon activates after a crash, this is the frequency people listen on and call out on.

Full Definition

121.5 MHz is the international aeronautical emergency radio frequency, monitored by air traffic control, military facilities, and many aircraft for distress calls and emergency locator transmitter (ELT) signals. It is also designated as the VHF guard frequency.

Context Anchor

You may see 121.5 megahertz in emergency procedures, lost-contact procedures, and instructions to the emergency frequency.

Plain English Meaning

Full Definition

Context Anchor

Derivation

Why Pilots Care

Grounding Statement

Intuition Check

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