A PAPERWORK AUDIT BY A CARRIER REVEALED 10 B767-300 ACFT THAT HAD R AND L INBOARD FLAPS REMOVED AND REINSTALLED AT A CONTRACT MAINT FACILITY DID NOT HAVE THE FAA MANDATORY REQUIRED INSPECTION ACCOMPLISHED.

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WE HAD 3 B767-300 ACFT ARRIVE AT ZZZ WITH LINE MAINT CALLOUT BEFORE FURTHER FLT. CALLOUT IS THE COMPLETE RII INSPECTION OF THE SAFETY AND SECURITY OF THE R-HAND AND L-HAND TRAILING EDGE INBOARD FLAP INSTALLATIONS AND ALSO FLAP INSTALLATION OPS CHK. I WAS TOLD BY OUR CTLR THAT A TOTAL OF 10 ACFT WERE INVOLVED. ALL 10 ACFT HAD THE R-HAND AND L-HAND TRAILING EDGE FLAPS REMOVED AND REINSTALLED AT A NON-ACR CONTRACT MAINT FACILITY. CONTRACT MAINT JOB CARDS FOR FLAP REPLACEMENT DID NOT HAVE A SIGNOFF BLOCK OR BLOCKS FOR INSPECTION OF THESE FLT CTLS; SO INSPECTION OF THESE FLAP INSTALLATIONS WERE APPARENTLY NOT DONE. THE ACFT HAD BEEN IN SVC FOR A CONSIDERABLE LENGTH OF TIME (ACFT X; FOR EXAMPLE; WORK DONE MAY/2005 AT CONTRACT MAINT) IN NON COMPLIANCE TO PROPER MAINT PRACTICES. IT HAD JUST BEEN DISCOVERED BY ACR THROUGH AN AUDIT AND ACR IMMEDIATELY GNDED THE ACFT UNTIL INSPECTIONS WERE COMPLETE. REMEDY: IN MY OPINION; A LACK OF SUPVR ACCOUNTABILITY AND QUALITY CTL AT CONTRACT MAINT. ALSO; SUPVRS; INSPECTORS AND MECHS NEED (MUST BE) TO BE FAMILIAR WITH THE RII LIST SO THIS DOES NOT HAPPEN AGAIN.