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A
737-300/400/500MAINTENANCE MANUAL
S 653-240 WARNING: OBEY THE ELECTRICAL SYSTEM SEPARATION DISTANCES DURING A REFUEL
_______ OPERATION. IF YOU DO NOT OBEY THESE REQUIREMENTS A FIRE OR AN EXPLOSION CAN OCCUR.
(1) Maintain the separation distance for the electrical/electronic systems given in Table 303.
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A 737-300/400/500MAINTENANCE MANUAL
~.................................................................
| TABLE 303 |
...................................................................
| | REFUEL/DEFUEL |
| POWER (EIRP *[1]) OF EQUIPMENT | SEPARATION DISTANC E |
| TRANSMITTING RADAR OR RADIO | *[2] |
................................................................... | More than 100 watts (radio or radar) | 200 feet (60 meters)| ................................................................... | 25 to 100 watts (radio or radar) | 50 feet (30 meters) | ................................................................... | Less than 25 watts *[3] | 10 feet (3 meters) | 2...........................................….....................1
*[1] EIRP is effective Isotropic Radiated Power in watts. *[2] The distance is measured from a point on the ground directly below the fuel vents or from fueling equipment.
*[3] This category includes mobile phones, pagers, two-way radios, etc. There are low power, very safe communication systems that are approved for use in hazardous locations. These devices can be used safely in areas that contain fuel vapor (UL 913 or or equivalent standards).
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737-300/400/500MAINTENANCE MANUAL
L. Fuel Servicing Equipment Precautions (Fig. 301)
S 653-241
WARNING: OBEY THE FUEL SERVICING EQUIPMENT PRECAUTIONS DURING A REFUEL
_______ OPERATION. IF YOU DO NOT OBEY THESE REQUIREMENTS; A FIRE OR AN AN EXPLOSION CAN OCCUR.
(1)
Obey all separation distance requirements (Table 302).
S 653-242
(2)
Use only approved fuel servicing equipment in a serviceable
condition.
S 653-243
(3)
Do not disable the deadman shutoff controls.
NOTE: Wire, rope, or tools used to disable the deadman controls can
____ prevent the immediate shutoff of pressurized fuel. A disabled deadman control can cause a fuel spill hazard.
S 653-244
(4) When you position the fuel servicing vehicles, make sure the equipment:
(a)
Has a clear exit path at all times.
(b)
Does not interfere with access to the aircraft for rescue or fire protection.
(c)
Does not obstruct the passenger evacuation routes.
(d)
Does not obstruct the emergency slide chute deployment areas.
M. Ground Equipment and Airplane Servicing Equipment Precautions
S 653-245
WARNING: OBEY THE FUEL SERVICING EQUIPMENT PRECAUTIONS DURING A REFUEL
_______ OPERATION. IF YOU DO NOT OBEY THESE REQUIREMENTS; A FIRE OR AN AN EXPLOSION CAN OCCUR.
(1) Obey all separation distance requirements (Table 302).
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