B737-300 CREW HAD ENG FAN BLADES THAT HAD ICE ACCUMULATION; AND WERE DAMAGED.

Narrative

ACFT ENGS AND GEAR DEICED AT GATE. AFTER PUSHBACK TAXIED TO THE DEICE PAD TO HAVE THE AIRFRAME DEICED. DEICING WAS UNEVENTFUL. AFTER TKOF UPON CLBING ABOVE THE OVERCAST THE ENG ANTI ICE WAS TURNED OFF. A VIBRATION/AIR NOISE WAS HEARD IN THE COCKPIT AND CABIN. THROUGH A PHONE PATCH WITH MAINT WE DISCUSSED AND TROUBLESHOT THE NOISE. WE DECIDED IT WAS NOT GOING TO BE A SAFETY OF FLT ISSUE AND ELECTED TO CONTINUE TO DEST. THE NEXT MORNING I DISCOVERED THAT SEVERAL FAN BLADES ON THE R ENG HAD BEEN DAMAGED. CALLBACK CONVERSATION WITH RPTR REVEALED THE FOLLOWING INFO: THE RPTR STATED THE LNDG GEAR AND ENGS WERE DEICED ON THE GATE AND AFTER PUSHBACK THE ENTIRE AIRFRAME WAS DEICED. THE RPTR SAID AFTER TKOF A VIBRATION AIR NOISE WAS HEARD; NOT A RUMBLE. THE RPTR STATED THE NOISE VIBRATION WAS RPTED TO THE MAINT CTLR AND THE FLT PRESSED ON. THE RPTR SAID AT FLT TERMINATION THE #2 ENG HAD FAN BLADE DAMAGE. SEVERAL FAN BLADES BENT FORWARD 2 INCHES. THE RPTR SAID HE SUSPECTS THE DAMAGE MAY HAVE OCCURRED TAXIING OVER PATCHES OF ICE; BUT HAS NO IDEA WHY THE DAMAGE WAS LIMITED TO #2 ENG ONLY.