What was found
DURING CLIMBOUT, 500 AGL, LOUD BANG ACCOMPANIED WITH ACFT YAWING LT 5-10 FT. ENG RECOVERED IMMEDIATELY. ACFT CONTINUED & LANDED WITHOUT FURTHER EVENT. NO EMERGENCY ACTION TAKEN/DECLARED. MX BORESCOPED BOTH ENGINES TO ENSURE INTEGRITY. NO DEFECTS NOTED ON NR 1 , BUT FOUND NR 2 DAMAGED INTERNALLY. MX R & R NR 2 ENGINE IAW AWA TC R5M71302. CONFIRMED FAILURE. INCOMING INSPECTION REVEALED TWO BROKEN STAGE 5 BLADES WITH MISSING AIRFOIL MATERIAL CAUSING SECONDARY DAMAGE TO OTHER AIRFOILS. ENGINE WAS REPAIRED AND RESTORED IAW EM 71/72-00-00/CD-EM E-V2500-1IA/A5 REV. 60. ENGINE WAS SATISFACTORILY TEST IAW EM 71-00-00 TEST 10.