What was found
STL - FLT 266 - DURING CLIMB, NR 1 ENGINE STALLED AND EPR DROPPED FROM 2.17 TO 1.8. FOREIGN OBJECT DAMAGE WAS FOUND AND ENGINE WAS REPLACED. ENGINE TEAR DOWN REVEALED COMPRESSOR DAMAGE WAS MINOR COMPARED TO TURBINE DAMAGE. A SECOND STAGE TURBINE VANE FRETTED INNER TANG THROUGH INNER SHROUD AND RUBBED ON THIRD STAGE TURBINE BLADES UNTIL VANE RELEASED AIRFOIL. REPAIRED DAMAGE. (M)