(5)
If an APU fire occurs, do these steps in this sequence:
(a)
Stop the refueling operation.
(b)
Make sure the APU shutdowns automatically.
1) If the APU does not shutdown automatically, do the APU Emergency Shutdown Procedure (AMM 49-11-0/201).
(c)
Discharge the APU fire bottles (AMM 49-11-0/201).
(d)
Obey all airport and operator supplied fire protection and emergency procedures.
(6)
If a fuel spill occurs, do these steps:
(a)
Unload and shutdown the APU (AMM 49-11-0/201).
(b)
Do not start the APU again until the fire department or the person(s) in charge have given approval.
(7)
Obey these APU exhaust precautions during refueling operations:
(a)
The exhaust from an APU can cause a fire or an explosion if the exhaust stream enters a flammable vapor zone (wing vent areas, fueling stations and the area around fueling vehicles).
(b)
Make sure the fuel vehicles are in a position that avoids any risk of being in the path of the APU exhaust stream.
(c)
Make sure the APU exhaust on the airplane that is refueling does not impinge on the flammable vapor zone of another airplane.
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G. Airplane Separation Distance Limits
(1) Maintain the separation distance given in Table 301.
WARNING: OBEY THE SUBSEQUENT FUELING SEPARATION DISTANCES DURING A REFUEL OPERATION. IF YOU DO NOT OBEY THESE REQUIREMENTS, A FIRE OR EXPLOSION CAN OCCUR.
TABLE 301
EQUIPMENT OR IGNITION SOURCES REFUEL/DEFUEL SEPARATION DISTANCE *[1]
Adjacent aircraft with running engine(s) or APU Wing span of aircraft being fueled
Fuel service equipment - measured from engine or exhaust system 10 feet (3 meters) from fuel vents
Ground Power Units 20 feet (6 meters)
Aircraft servicing equipment - measured from the engine or exhaust system 10 feet (3 meters)
Aircraft servicing equipment during an overwing refuel operation Not under the trailing edge of the wing
Electrical equipment that is likely to cause arcs or sparks 50 feet (15 meters)
Photographic equipment 10 feet (3 meters)
Battery powered equipment 10 feet (3 meters) from fuel servicing equipment or fuel spills
Open flames, heat sources, lighted smoking material, and any other potential ignition sources 50 feet (15 meters)
Electrical transmitting equipment Reference Table 302
*[1] The distance is measured from a point on the ground directly below the fuel vents or from fueling equipment.
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(2) Maintain the separation distance given in Table 302.
WARNING: OBEY THE SUBSEQUENT ELECTRICAL SYSTEM SEPARATION DISTANCES DURING A REFUEL OPERATION. IF YOU DO NOT OBEY THESE REQUIREMENTS, A FIRE OR AN EXPLOSION CAN OCCUR.
TABLE 302
POWER ((EIRP *[1]) OF EQUIPMENT TRANSMITTING RADAR OR RADIO REFUEL/DEFUEL SEPARATION DISTANCE *[2]
More than 100 watts (radio or radar) 200 feet (60 meters)
25 to 100 watts (radio or radar) 50 feet (15 meters)
Less than 25 watts *[3] 10 feet (3 meters)
*[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 intrinsically 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 equivalent standards).
H. Fuel Requirements
(1)
Make sure the fuel source has the correct fuel grade as specified by the engine manufacturer (PWA-522 specifications).
WARNING: OBEY THE FUEL GRADE LIMITATION. IF YOU DO NOT USE THE CORRECT GRADE OF FUEL, ENGINE FLAMEOUT, PERFORMANCE DEGRADATION, OR DAMAGE CAN OCCUR.
(2)
The use of wide cut fuels may be restricted. Read the capacity placard on the refuel panel to find if there is information on the use of Jet B and JP-4.
I. Fuel Servicing Equipment Precautions
(1)
Obey all separation distance requirements (Table 301).
WARNING: OBEY THE SUBSEQUENT FUEL SERVICING EQUIPMENT PRECAUTIONS DURING A REFUEL OPERATION. IF YOU DO NOT OBEY THESE REQUIREMENTS, A FIRE OR AN EXPLOSION CAN OCCUR. 中国航空网 www.aero.cn 航空翻译 www.aviation.cn 本文链接地址：737 AMM 飞机维护手册 SERVICING(6)
