TM  5-5420-209-12 Table 2-12. Operator  Preventive  Maintenance  Checks  and  Services  (PMCS)  for  the  Interior  Bay  cont. Item No. 3 4 5 6 7 8 9 10 11 12 13 Interval Before Before Before Before Before Before Before Before Before Before Before Location Item  to Service/Check Tagline  Bar (RBPR) Bridge  Latch Receptacle (RBPR) Skin  Surface (RBPR) TieDown  Pin (RBPR) Skin  Surface (RBP Side) Tie Down Pin Bridge  Latch Receptacle (RBP  Front) Unfolding Mechanism (RBPF) Skin Surface (RBPF) Foldlock  Latch (RBPF) Lifting  Eye (Front) Item  To  be  Inspected Procedure Inspect  for  broken  welds  and  deformation. Inspect  brackets,  shims  and  strike  catches  for cracks,  broken  welds,  binding  and deformation. Inspect  for  punctures,  cracks,  tears,  dents, holes and broken welds. Inspect for cracks, broken welds and erosion of  pin  surface  area. Inspect  for  punctures,  cracks,  tears,  dents, holes and broken welds. Inspect for cracks, broken welds and erosion of pin surface area. Inspect brackets, shims and strike catches for cracks, broken welds, binding and deformation. Inspect  cover  plate,  spring  pins,  pins,  lever, and  link  for  cracks,  broken  welds  and deformation. Inspect  for  punctures,  cracks,  tears,  dents, holes  and  broken  welds. Inspect  brackets,  supports  and  pins  for  cracks, broken  welds  and  deformation. Inspect  springs  for  deformation  and  stretching. Inspect for cracks and elongation of eye. Equipment Is Not Ready/Available  If Broken  welds,  binding  or deformation   prevents engaging  latch  noted. Any damage which allows water into bay cavity. Broken welds noted or erosion  of  surface  area prevents securing bay to transporter. Any damage which allows water into bay cavity. Broken welds noted or erosion  of  surface  area prevents securing bay to transporter. Broken  welds,  binding  or deformation   prevents engaging  latch  noted. Broken welds noted or deformation   prevents mechanism  for functioning  properly. Any damage which allows water into bay cavity. Cracks,  broken  welds noted  or  deformation causes  binding. Springs   stretched. Any  cracks  noted  or  eye elongation  equals  25% of original circumference. 2-35