What was found
ON TAXI OUT 5 PAX REPORTED SEEING FLAMES & SPARKS, HEARD A POP FROM NR 1 ENG. ALL ENG INDS NORMAL & NO FIRE WARNING INDICATED. PERFORM INSP OF NR 1 EXHAUST IAW AMM 71-00-00-800-803-F00. PERFORMED EEC BITE CHK TEST 13 IAW AMM 71-00-00, NO FAULTS ON CURRENT STATUS OR HISTORY. NO HISTORY FOR PAST 10 DAYS. PERFORMED ENG RUN TEST 3A IAW AMM 71-00-00. NO FAULTS FOUND ON CURRENT STATUS OR HISTORY. NO HISTORY FOR PAST 10 DAYS. PERFORMED ENG RUN TEST 3A IAW AMM 71-00-00. ACCOMPLISHED NR 1 ENG MCD INSPECTION, GVI OF THE NR 1 ENG TAILPIPE. ACCOMPLISHED BOROSCOPE OF NR 1 COMBUSTCHAMBER & HPT. ACCOMPLISHED AN ACCELERTATION CHK OF NR 1 ENG. ALL INPSPS & TESTS OPS CHKD GOOD.