Flight Crew Instrument; Flight Crew Air Transport Pilot (ATP); Flight Crew Multiengine
Situational Awareness; Communication Breakdown; Troubleshooting
Aircraft Equipment Problem Critical; Deviation / Discrepancy - Procedural Published Material / Policy; Deviation / Discrepancy - Procedural Maintenance
Aircraft Aircraft Damaged; Flight Crew Overcame Equipment Problem
Aircraft; Company Policy; Human Factors; Procedure
Upon receiving the aircraft in ZZZ the inbound Captain had mentioned to my First Officer that ENG 1 had a fan blade being monitored by Maintenance and that it was on a special tracking system. I had looked through the logbook and had not seen such write up from Maintenance so I was a bit confused on what the First Officer had been telling me. We proceeded to fly our ZZZ - ZZZ1 - ZZZ round trip. On our return to ZZZ I had noticed that the ENG 1 HP Vibrations were trending higher than the ENG 2 HP vibrations but were still in the green range; However; we started noticing a slight abnormal vibration coming from the left side of the aircraft while in cruise. Upon landing in ZZZ and configuring for standard taxi into the gate I advised my First Officer to shut down ENG 1; when he commenced the ENG 1 shutdown we both felt the ENG abnormally vibrate and slightly shake the left side of the aircraft; at that point I figured something wasn't normal. Once we reached the gate I elected to do the walk around and discovered one of the fan blades had an abnormal shape/dent in it. I then contacted Maintenance to chat about this monitoring system that the previous Captain had mentioned to my First Officer when we received the aircraft; they had no documentation of it. I then proceeded to write up the fan blade to have Maintenance further inspect it.
An Air Carrier Captain reported abnormal engine vibrations in flight and while taxiing were due to a previously reported damaged fan blade that maintenance had not documented.