What was found
DIRTY/MUSTY SMELL ON T.O. AND CLIMB IN COCKPIT AND AFT CABIN, SMELL CAME BACK ON DSCT FROM 15,000 TILL GATE ARRIVAL. OPENED #1 ENGINE FOR BORO, REMOVED BORO PLUGS LPC-2, HPC-1, HPC- 2, TIC, LPC-3, LPT-1, LPT-2 AND N1 SPEED PROBE. REF: AMP TASK BD500-A-J29-00-00-00AAA-310AA (WIP 907981). DURING BSI FOUND HPC 1ST STAGE T/E BLADES AND HPC 2ND STAGE STATOR VANE WET. AMP 79- 00-00-00-AAA. ENGINE CHANGE REQUIRE FERRY FLIGHT TO MSP. INSTALLED ALL BORO PLUGS PREVIOUSLY NOTED, REF: AMP TASK BD500-A-J29-00-00-00AAA-310AA. RAN ENGINE LEAK AND OPS CHECK GOOD. CHANGED #1 ENG ON LOG #2023021, ALL CHECKS GOOD.