51-5BBA-1,  Mk  7  Mod  2,  and  51-5BCA-1,  Mk  7 Mod   3   Aircraft   Recovery   Equipment   Technical Manuals. SAFETY  IN  MAINTENANCE Any  engine  not  operable  or  shutdown  because of  malfunction,  breakdown,  needed  adjustment,  or repair  should  have  the  deck  pendant  removed  and all  operating  pressures  relieved.  Leaks  indicate poor  fittings  or  bad  packing  and  result  in  pressure losses  and  probable  malfunction.  Every  leak  must be immediately investigated to determine the cause and  the  corrective  action  to  be  taken.  Cleanliness concerning debris, waste wiping materials, and tools must be very strictly adhered to, particularly where involvement   with   operable   parts   may   occur.   A jammed  up  engine  as  a  result  of  carelessness  with work  materials  could  result  in  injury  and/or  loss  of life.  Lubrication  tables  for  all  equipment  must  be strictly  adhered  to. Venting  the  various  lines  to remove  entrapped  air,  foam,  or  waste  fluids  is  a preoperational   and   operational   requirement.   Safe operations  depend  upon  strict  adherence  to  these and all other pertinent safety instructions. Molten  Metal  and  Heating  Methods A  detailed  description  of  heating  and  using molten   metal   for   pouring   sockets   is   contained earlier in this chapter.   Particular  attention  should be  given  to  the  warning  notes  and  instructions regarding  personnel  safety.  All  personnel  involved in terminal pouring operations or in any operations where  molten  metals  are  involved  should  wear goggles,  gloves,  aprons,  and  such  other  protective clothing as is necessary. Ample ventilation must be provided  against  fumes  given  off  by  molten  metals. Cables, Pendants, and Taut Lines In   running   pendants,   cables,   or   taut   lines, personnel should be familiar with procedures so that equipment  is  placed  without  kinking,  twisting,  or unnatural  positioning.  Improper  handling  of  cables will   cause   strand   breakage   and   subsequent weakening  and  failure.  Whenever  deck  tractors  are used for pulling out pendants, all personnel must be on  guard  for  cable  lash. Improper Landings Personnel  at  deckedge  stations  or  on  deck  duty must be alert during landing operations to stay clear of   any   aircraft   and   particularly   those   making offcenter  or  excessive-speed  landings.  Either  type can   lead   to   pendant   failures,   unequal   stanchion loadings in the event of barricade landings, and the possibility  that  such  aircraft  will  go  over  the  deck edge. Safety  Checklist The  following  safety  checklist  should  be  posted at  applicable  locations: · Replace   broken,   worn,   or   kinked   deck pendants  and  barricade  deck  cables  as  soon  as operations  permit. · Inspect  deck  pendants  after  each  group  of landings and after each excessive-load landing, such as extreme offcenter landings or extreme runout to two-blocking. · Lubricate   deck   pendants   and   barricade cables  properly  and  frequently. · Replace  broken  wire  supports. · Raise  the  barricade  webbing  to  the  proper height. · Replace  loose  or  damaged  cable  fittings  and couplings. · Do   not   allow   terminal   jamming   of   deck sheave housing. · Remove  debris  and  dirt  from  all  areas. · Remove   the   deck   pendants   from   engines that are inactive. · Keep   stanchion   area   clear   of   personnel when  raising  and  lowering  cables  and  webbing assemblies. · Do  not  reuse  the  barricade  webbing  system after an arrestment. · Hookrunners  should  approach  all  arrested aircraft from the front to avoid jet blast and possible broken  cable  backlash. 3-67