(f)  
Look at the filter-regulator to make sure the supplied air system operates correctly.

 (g)  
Keep visual contact with the fuel tank entry location.

 (h)  
Keep constant communication with the person(s) the fuel tank.

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 (i)  Look at the combustible gas indicator to make sure the air in
 the fuel tank is at 10% or less of the lower explosive limit.
 (j)  Do not put your head in the fuel tank access hole unless you
 have the correct respirator on, for the condition of the tank,
 and there is another observer to watch you.
 NOTE:____ This is considered the same as a fuel tank entry.
 (k)  Look out for any changes which could cause a dangerous
 condition.
 (l)  Make sure person(s) in the fuel tank get out if there is a
 dangerous condition.

 S 942-318
 (14)
 Persons with respirators must touch the identified airplane ground to release static electricity before they go into the fuel tank.

 S 492-319

 (15)
 Go into the fuel tank.

 S 482-320

 (16)
 As an alternate procedure, you can take an additional combustible gas indicator into the fuel tank to monitor the environment where you will do the maintenance.

 S 492-321

 (17)
 If it is necessary for your air ventilation system, route the air duct to the maintenance area (Fig. 204).

 (a)
Bond the air duct to the airplane structure.

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 S 942-322
 WARNING: MAKE SURE TO WEAR THE CORRECT RESPIRATION PROTECTION FOR THE
_______ CONDITION OF THE FUEL TANK. PERSONS WHO BREATHE HIGH CONCENTRATIONS OF FUEL VAPOR CAN GET HEADACHES, FEEL SLEEPY OR FAINT. IF A PERSON'S BREATH SLOWS OR STOPS, SEND A PERSON FOR MEDICAL ASSISTANCE. GET THE PERSON OUT OF THE TANK IMMEDIATELY. START ARTIFICIAL RESPIRATION AT ONCE IF A PERSON'S BREATH STOPS. CONTINUE THE ARTIFICIAL RESPIRATION. PERSONS WITH HEADACHES, OR IRRITATION OF THE EYES OR SKIN SHOULD GET OUT OF THE FUEL TANK AT ONCE. JET FUELS CONTAIN SMALL QUANTITIES OF CHEMICAL ANTIOXIDANTS, METAL DEACTIVATORS AND CORROSION INHIBITORS. THESE CHEMICALS ARE IRRITANTS. IF SPLASHED INTO THE EYES, FLUSH THE EYES WITH WATER FOR A MINIMUM OF 15 MINUTES. LIFT THE UPPER AND LOWER EYELIDS FREQUENTLY TO REMOVE CHEMICALS. GET MEDICAL ASSISTANCE IMMEDIATELY.
　
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本文鏈接地址：757 AMM 飛機維護手冊 燃油 CHAPTER 28 - FUEL 1(53)