What was found
ON TAKEOFF ROLL, F/O FLYING, ACFT TOOK A LOT OF RT RUDDER AT CLIMB OUT, LT ENG 5-10% LOWER N1 & SLIGHTLY LOWER EPR. INCREASED POWER ON LT ENG TO MATCH RT. RT ENG INCREASED SLIGHTLY ON IT`S OWN & GOT A COMPRESSOR STALL, 2 QUICK BANGS. RETARDED RT ENG POWER & OPS NORMAL AT LOWER POWER SETTINGS REST OF FLT. EMERGENCY DECLARED, RETURNED TO GJT. COMPLIED WITH ENG AFTER SURGE INSP IAW MM 71-00-00-6, PARA 3, NO DEFECTS FOUND OTHER THAN 3 HPC STAGE 1 BLADES WITH SMALL CRACKS, FOUND DURING BOROSCOPE INSP IAW MTSI 72-00-0341. ALL CRACKS MEASURE LESS THAN .330", WITHIN LIMITS, BUT REQUIRE INTERVAL INSPS IAW MM 72-00-00-6-2. PERFORMED ENG RUN TESTS 3 & 13 IAW AMM 71-00-00-5-3. NO FAULTS FOUND. ACFT OK FOR SERVICE.