What was found
ITT ON RIGHT ENGINE INCREASED TO 840C ON 85% N1 ON BOTH ENGINES, WITH VIBRATIONS AT FLIGHT LEVEL 190. REDUCED POWER VIBRATION ON N2 TWICE FOR 1 SEC EACH. AND N1 VIBE AT 2.7MIL. AIRCRAFT REMOVED FROM SERVICE. PERFORMED BOROSCOPE INSPECTION OF RH ENGINE COLD SECTION STAGES ON THROUGH TEN PER AMM 72-00. FOUND STAGE SIX MISSING A BLADE. STAGE FIVE SPINDLES THROUGH STAGE TEN BLADES ALL HAVE DAMAGE FROM LOOSE BLADE GOING THROUGH COMPRESSOR SECTION. R&R RH ENGINE.