B737-900
Maintenance Airframe; Maintenance Powerplant
Aircraft Equipment Problem Critical; Deviation / Discrepancy - Procedural MEL / CDL; Deviation / Discrepancy - Procedural Published Material / Policy; Ground Event / Encounter Object; Ground Event / Encounter Vehicle
Aircraft Aircraft Damaged; General Flight Cancelled / Delayed; General Maintenance Action
Company Policy; Logbook Entry; MEL; Manuals; Aircraft
We were assigned to work CDL L/P XXXXXXX for lav service door. Once we arrived at the aircraft inside hangar we noticed damage fwd of the lav service area. After further research we found a carry item L/P XXXYYYYY that appears to have addressed this damage and item was placed on EXT. The damage was never repaired per SRM XX-XX-XX as stated in L/P . After we addressed the damage we also found the shear tie common to this area was damaged the aircraft is now out of service for a permanent repair to be performed to the area.Aircraft should have never flown with the damage that it had. Proper evaluations need to be done when ground damage like this occurs.
Technician reported an aircraft he was assigned to work was previously not evaluated properly for ground damage and subsequently flew in revenue service in a non airworthy condition.