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Page Title: DEARMING OR REARMING AREA (IMMEDIATELY AFTER ENGINE SHUT DOWN)
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POSTLOADING QUALITY ASSURANCE INSPECTION
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Aviation Ordinanceman - Aviation theories and other practices
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SAFETY PRECAUTIONS

DEARMING OR REARMING AREA (IMMEDIATELY AFTER ENGINE SHUT DOWN) Dearming procedures are performed after aircraft landing or ground abort. Aircraft bombs are normally dearmed in the rearming area. However, if the aircraft has  missiles  or  rockets  aboard,  they  are  safed  in  the designated dearming area. WARNING Do not attempt to disarm a partially or fully armed   fuze.   Notify   the   proper   authority (EOD).  If  any  component  is  missing,  loose, or damaged, notify the proper authority. If an arming wire is not installed in the fuze or arming  device,  the  fuze  or  arming  device may be armed. You should notify the proper authority. The first step you take when dearming an aircraft is to  make  sure  the  fuzes  or  arming  devices  or  firing mechanisms  are  safe  and  arming  wires  are  installed through  fuze  vanes  and  pop-out  pins,  as  applicable. Then,   inspect   the   weapons   for   missing,   loose,   or damaged  components.  If  an  IMER/ITER  is  involved, position the safety stop levers to lock on loaded racks. Install the safety pins in loaded stations. NOTE: If an aircraft returns with unexpended ordnance, a WEAPON LOADED sign must be placed in the cockpit. Check  that  all  cockpit  armament  switches  are  OFF, SAFE, or NORM. As applicable, remove arming wires, lanyards, or lanyard tabs from empty stations. Finally, report the status of the aircraft to the proper authority. UNLOADING PROCEDURES Before  you  unload  a  weapon  from  the  rack,  the aircraft should be in the rearming area. Make sure that electrical  power  to  the  aircraft  is  removed,  and  the aircraft is properly grounded. Verify the following: all cockpit  armament  switches  are  OFF  or  SAFE;  that safety pins are installed in all loaded racks. Finally, if an IMER/ITER  is  being  unloaded,  verify  that  the  safety stop lever is locked on each loaded ejector unit. Now   you   can   open   the   pylon   access   doors.   If unloading  an  IMER/ITER  (with  a  weapon)  from  the rack,    remove    the    breech    caps    from    the    breech chambers,  the  cartridges  from  the  breech  chambers, position  the  breech  caps  to  prevent  damage  during unloading, and disconnect the adapter connector, and, if applicable, the electric fuze adapter harness from the IMER/ITER. WARNING Do  not  remove  a  fuze  or  arming  wire  that was not installed during loading procedures. Do  not  remove  an  arming  wire  unless  the fuze safety pin or device is installed. Ensure   that   the   M904E3/E4   fuze   is   safe   by verifying  the  installation  of  the  arming  wire  in  the arming wire guide and the arming vane. Make sure you can't see a black letter against a red background in the upper (external) window. If the arming delay isn't set on 6 or 18 seconds, the upper (external) window should be vacant. If the arming delay is set on 6 or 18, you should see  matching  numbers  on  a  green  background  in  the window. Then, you can install a safety wire through the arming wire guide and the arming vane. WARNING If  the  arming  wire  is  not  in  place  or  if  the upper   (external)   window   indication   is   a black letter A against a red background, the fuze is armed. Do not attempt to change the arming delay settings to disarm the fuze, or to  remove  the  fuze  from  the  bomb.  Notify the proper authority (EOD) when an armed or partially armed condition is indicated. WARNING If a green background without the number 6 or   18   appears   in   the   upper   (external) window when the arming delay is set on 6 or 18, or if the number in the upper (external) window  does  not  match  the  arming  delay setting number, the fuze is partially armed. Notify the proper authority. Other  actions  you  should  take  when  unloading weapons include checking to see that the arming wire is installed  in  the  pop-out  pin  for  electric  fuzes.  If  an electric fuze was used, you need to disconnect the Mk 122  arming  safety  switch  lanyard  tab  from  the  spring latch.  Then,  if  applicable,  install  the  fin  release  band safety  (cotter)  pin.  Disconnect  the  fin  release  wires, lanyards, and arming wires from the aircraft. If   applicable,   you   can   remove   the   M904E3/E4 fuzes by installing a safety wire, and then removing the 14-11

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