What was found
CLIMBING THROUGH 11000 FEET FELT STRONG YAW TO LEFT, N1 AND N2 ROLLED BACK, EGT HIGH ALL ON NBR 1 ENG. LOUD BANG. SHUT DOWN ENGINE PER QRH AND RETURNED TO PHL. REMOVED AND REPLACED ENGINE.
As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
CLIMBING THROUGH 11000 FEET FELT STRONG YAW TO LEFT, N1 AND N2 ROLLED BACK, EGT HIGH ALL ON NBR 1 ENG. LOUD BANG. SHUT DOWN ENGINE PER QRH AND RETURNED TO PHL. REMOVED AND REPLACED ENGINE.