A B767-300 WAS FOUND TO HAVE LEFT AND RIGHT ENG INBOARD NACELLE STRUT COMPOSITE PANELS DELAMINATED AND OUTER ALUMINUM LAYER ERODED WITH HONEYCOMB EXPOSED BEYOND STRUCTURAL REPAIR MANUAL LIMITS.

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ENG #1 AND #2 INBD PYLON PANELS DELAM/OUTER ALUMINUM LAYER ERODED AWAY. HONEYCOMB LAYERS WERE EXPOSED. THESE PANELS WERE DEFERRED TO PERFORM REPAIR AT A LATER OPPORTUNITY. DISCREPANCIES ON BOTH PANELS BEYOND STRUCTURAL REPAIR MANUAL LIMITS. THE STRUCTURAL INTEGRITY OF BOTH PANELS IS COMPROMISED. ACFT X ARRIVED IN ZZZ MAY/FRI/05. MAINT FOUND #1 AND #2 ENG PYLON PANELS DELAMINATED AND A HOLE. ALLOWABLE DAMAGE BEYOND LIMITS PER STRUCTURAL REPAIR MANUAL. MAINT THREATENED BY MGMNT TO DISREGARD. MAINT FOUND CARRY FORWARD ITEM LIMITS OUTSIDE OF APPROVED DOCUMENTS. MGMNT HANDLED PAPERWORK AND MAINT IS TRYING TO WORK QUALITY ASSURANCE TO REMEDY THE PROB. CONDITION IS CLEARLY OUT OF LIMITS. CALLBACK CONVERSATION WITH RPTR REVEALED THE FOLLOWING INFO: THE RPTR STATED THAT WITH THE OUTER ALUMINUM COVERING STRIPPED OFF THE KEVLAR HONEYCOMB; YOU COULD OBSERVE VERTICAL GREY STREAKS IN THE COMPOSITE PANEL WHERE IT BUBBLED OR BULGED OUTWARD AND THE AIR STREAM POLISHED THE BULGED SURFACE. THE DELAMINATION REPORTEDLY WAS BEYOND THE STRUCTURAL LIMITS AND COULD NOT HAVE BEEN LEGALLY DEFERRED. AFTER ADVISING THE SUPVR OF THE CONDITION OF THE PANELS AND THE STRUCTURAL REPAIR LIMITS; THE RPTR WAS THREATENED WITH FIRING. THE PANELS WERE DEFERRED BY THE SUPVR TO BE REPLACED OR REPAIRED.