What was found
NR 2 COMPRESSOR STALL SHORTLY AFTER TAKEOFF. FLAMES REPORTED, FIRE BOTTLES DISCHARGED, ENGINE SHUTDOWN. EMERGENCY DECLARED. RETURNED TO FIELD, OVERWEIGHT LANDING WITHOUT INCIDENT. *S/D* THIS ENGINE EXPERIENCED A GROUP 3 SURGE EVENT. GROUP 3 SURGES ARE THE RESULT OF EXCESSIVE BLADE TIP CLEARANCE IN THE REAR STAGES OF THE HIGH PRESSURE COMPRESSOR. THIS ENGINE WAS REMOVED FOR HIGH PRESSURE COMPRESSOR REFURBISHMENT.