ING SUPPORT OF OPERATOR COMPLIANCE WITH THE AGING AIRPLANE SAFETY RULE. SERVICE LETTER RECOMMENDED 27-OCT-2010 MOS 51 737-SL-51-044 PINHOLES IN THE FINISH OF CARBON FIBER REINFORCED RECOMMENDED 21-OCT-2011 PLASTIC (CFRP) PARTS, SERVICE LETTER MOS 51 737-SL-51-045 CORROSION PREVENTION AND CONTROL PROGRAMS. SERVIC