MM23772, Rev. F
14
3.1.3
Aircraft
Always turn off a portable radio before boarding any aircraft!
Use it on the ground only with crew permission.
DO NOT use while in-flight!!
3.1.4
Electric Blasting Caps
To prevent accidental detonation of electric blasting caps, DO NOT use two-way
radios within 1000 feet of blasting operations. Always obey the "Turn Off Two-Way
Radios" signs posted where electric blasting caps are being used. (OSHA Standard:
1926.900)
3.1.5
Potentially Explosive Atmospheres
Areas with potentially explosive atmospheres are often, but not always, clearly
marked. These may be fuelling areas, such as gas stations, fuel or chemical transfer or
storage facilities, and areas where the air contains chemicals or particles, such as
grain, dust, or metal powders.
Sparks in such areas could cause an explosion or fire resulting in bodily injury or even
death.
Turn OFF two-way radios when in any area with a potentially explosive atmosphere.
It is rare, but not impossible that a radio or its accessories could generate sparks.
