Demonstrate  knowledge  of  and  compliance  with fueling and defueling procedures, and follow the applicable  safety  instructions. Demonstrate ability to use the methods of aircraft security required for various weather conditions and shipboard operations. Give particular attention to the security of control surfaces and the correct points for attaching   tie-downs. Demonstrate,  in  writing  and  by  practical application,  knowledge  of  the  procedures  for  riding brakes and any peculiarities of the braking system of the assigned aircraft, as well as a knowledge of the standard signals  (including  those  contained  in  NATOPS,  both hand  and  wand)  used  for  controlling  aircraft  on  the ground  or  flight  deck. Q1. To what department is the line division assigned? Q2.  What  branch  is  responsible  for  the  support equipment  used  by  the  squadron? Q3. In most squadrons, 75 to 95% of the personnel assigned to the line division are assigned to what branch? Q4. After demonstrating your abilities as a plane captain, who has the final authority to designate you a plane captain? AIRCRAFT SERVICING LEARNING OBJECTIVE: Recognize safety procedures and the proper equipment used in servicing   aircraft. Aircraft servicing is an important part of daily and turnaround  inspections  that  plane  captains  perform, Even when plane captains do not personally perform the servicing, they must still ensure that it is done correctly. A typical daily/turnaround record is shown in figure 5-2. However, the aircraft may require servicing at  more  frequent  intervals.  Daily  and  turnaround inspections are covered later in this chapter. The servicing of an aircraft includes replenishing fuel,  oil,  hydraulic  fluid,  and  other  consumable materials.  Also,  the  tires  are  checked  for  proper inflation, struts for proper extension, and the various air storage units for proper pressure. GENERAL SAFETY PRACTICES This  section  lists  some  general  safety  practices  that are important in day to day maintenance operations. 5-3 Fire Hazards Smoking  is  not  permitted  around  the  aircraft during fueling. Also, smoking or naked lights (such as oil   lanterns,   candles,   matches,   exposed   electric switches,  slip  rings  or  commutators,  dynamos  or motors,  any  spark-producing  electrical  equipment,  or any burning material) are not permitted within 100 feet of an aircraft that is being refueled or the fuel storage tanks.  No  lights  other  than  approved  explosionproof lights  are  permitted  within  50  feet  of  refueling operations. No light of any sort may be placed where it can come in contact with spilled fuel. Warning signs should be posted as a precautionary measure. All accidental spillage of aircraft fuels or other combustible liquids must be contained and removed immediately with absorbent material, by covering with a foam blanket, or by neutralizing by other means to prevent ignition. Notify the proper fire authorities anytime a large amount of aviation fuel is spilled. Nonspark tools must be used when work is done on any part of a system or unit that is designed for storing  or  handling  combustible  liquids.  The  use  of leaky tanks or fuel lines is not permitted. Repairs must be made upon discovery. Always keep in mind the hazards  involved. Aircraft  should  be  fueled  in  a  safe  place. Shore-based aircraft may not be fueled or defueled in a  hangar  or  other  enclosed  space  except  in  an emergency. Aircraft should be free from fire hazards, have the engine switches in the OFF position, and have chocks placed under the wheels before fueling or defueling  operations  are  begun. CAUTION You should guard against breathing hydro- carbon  (fuel)  vapors.  They  may  cause  sick- ness, or they may be fatal. Do not let fumes accumulate.  Use  adequate  ventilating  meas- ures. Also, avoid getting fuel on your clothes, skin, or eyes because of the high lead content. If your clothing becomes saturated with fuel, remove them as soon as possible. The parts of your body that are exposed to fuel should be washed  thoroughly  with  soap  and  water. Clothing saturated with fuel creates a danger- ous fire hazard. Also, painful blisters similar to fire burns may be caused by direct contact of the skin with fuel. If fuel gets in your eyes, flush them with water and obtain medical at- tention.