PURGING OF FUEL TANK WITH AIR
Aircraft Mechanics Tool Kit, NSN 5180-00-323-4692
Air Supply, 80 to 120 Lbs. Per Sq. In.
Lamb Air Remover (T-200)
Combustible Gas Indicator (T-219)
Grounded Air Blower (or Equivalent)
Medium Helicopter Repairer
Battery Disconnected (Task 1-39)
Electrical Power Off
Helicopter Grounded (Task 1-29)
Fuel Tank Defueled (Task 10-34 or 10-35)
Two Tank Drain Valves Removed (Task 10-39)
General Safety Instructions:
All regulations and instructions
on handling fuels shall be strictly
Air purging forces fresh air into the
defueled tank to replace fuel vapors.
Procedure is same to purge any fuel
tank. No. 1 (left) main fuel tank
purging is shown here.
Connect air supply hose (1) to air mover (2).
Open air supply valve (3) slowly.
Allow air supply to flow to clear hose (1) and air
Close air supply valve (3).