What was found
PASSING - 1000 FT MSL, EXPERIENCED 4-5 LOUD BANGS WITH ACFT VIBRATION. F/O NOTICED A FLUCUATION ON THE #3 ENG N1 GAGE . TOWER REPORTED BLACK SMOKE FROM #3 ENG. AFTER THRUST REDUCTION, NO FURTHER ABNORMAL INDICATIONS REMOVED AND REPLACED CIT SENSOR, HMU, AND LOW PRESSURE CHECK VALVE ALL REF AMM 73-21-11-4, 73-21-04-01, AND 36-11-01-4, ALL ENGINE CHECKS PERFORMED REF AMM 71-00-005 NO AIR LEKS, FUEL LEAKS, ALL TESTS PASSED FOR COMPONANTS CHANGED PREVIOUSLY.VERIFIED ALL BORESCOPE PLUGS INSTALLED