Narrative:

I was scheduled to take aircraft xyz from ZZZ to ewr on flight abc. The aircraft arrived from ZZZ over 1 hour late due to an overnight divert to den. On approach to ZZZ the night prior, the aircraft experienced icing. The first officer from that flight thought they experienced #2 engine compressor stalls. After examining the log and noting no items entered, I sought out the captain at operations for a briefing. He confirmed that they experienced an engine vibration on final the night before, which is normal under icing conditions. He stated that there was nothing to report in the log when they arrived in den. While deicing at ZZZ, I contacted maintenance technician and inquired as to the proper procedure for clearing an engine which experienced vibrations as reported to me by the captain. Maintenance asked me if I could see daylight through the engine. I said a visual inspection was normal. Maintenance offered no further guidance. We departed runway 7 uneventfully. En route to ewr, a flight attendant who worked the flight into ZZZ relayed to me her point of view. She said the vibration was severe and it was associated with 3 loud bangs. She said she had never felt an airplane shake like that and considered herself lucky to be alive. When they landed in den she stated that den station personnel removed large chunks of ice from the #2 engine. She asked the captain the next morning if maintenance had looked at the engine. The captain replied affirmative. With that en route revelation, I contacted maintenance technician through dispatch and requested they confirm the ice incident in den. Maintenance got back in touch with me 30 mins later and confirmed her story. Maintenance stated that maintenance in ewr would inspect the #2 engine upon arrival. At ewr, I contacted maintenance for the third time to ensure the proper entries were recorded into the log. My concerns were for the legal implications for maintenance, previous captain and myself. In conclusion, I feel that previous captain should have had the engine inspected in den and could have been more thorough with me in our briefing.

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Original NASA ASRS Text

Title: A B757-200 WAS DISPATCHED IN NON COMPLIANCE WITH KNOWN #2 ENG VIBRATIONS AND POSSIBLE ENG STALLS BUT NOT RPTED IN THE LOGBOOK.

Narrative: I WAS SCHEDULED TO TAKE ACFT XYZ FROM ZZZ TO EWR ON FLT ABC. THE ACFT ARRIVED FROM ZZZ OVER 1 HR LATE DUE TO AN OVERNIGHT DIVERT TO DEN. ON APCH TO ZZZ THE NIGHT PRIOR, THE ACFT EXPERIENCED ICING. THE FO FROM THAT FLT THOUGHT THEY EXPERIENCED #2 ENG COMPRESSOR STALLS. AFTER EXAMINING THE LOG AND NOTING NO ITEMS ENTERED, I SOUGHT OUT THE CAPT AT OPS FOR A BRIEFING. HE CONFIRMED THAT THEY EXPERIENCED AN ENG VIBRATION ON FINAL THE NIGHT BEFORE, WHICH IS NORMAL UNDER ICING CONDITIONS. HE STATED THAT THERE WAS NOTHING TO RPT IN THE LOG WHEN THEY ARRIVED IN DEN. WHILE DEICING AT ZZZ, I CONTACTED MAINT TECHNICIAN AND INQUIRED AS TO THE PROPER PROC FOR CLRING AN ENG WHICH EXPERIENCED VIBRATIONS AS RPTED TO ME BY THE CAPT. MAINT ASKED ME IF I COULD SEE DAYLIGHT THROUGH THE ENG. I SAID A VISUAL INSPECTION WAS NORMAL. MAINT OFFERED NO FURTHER GUIDANCE. WE DEPARTED RWY 7 UNEVENTFULLY. ENRTE TO EWR, A FLT ATTENDANT WHO WORKED THE FLT INTO ZZZ RELAYED TO ME HER POINT OF VIEW. SHE SAID THE VIBRATION WAS SEVERE AND IT WAS ASSOCIATED WITH 3 LOUD BANGS. SHE SAID SHE HAD NEVER FELT AN AIRPLANE SHAKE LIKE THAT AND CONSIDERED HERSELF LUCKY TO BE ALIVE. WHEN THEY LANDED IN DEN SHE STATED THAT DEN STATION PERSONNEL REMOVED LARGE CHUNKS OF ICE FROM THE #2 ENG. SHE ASKED THE CAPT THE NEXT MORNING IF MAINT HAD LOOKED AT THE ENG. THE CAPT REPLIED AFFIRMATIVE. WITH THAT ENRTE REVELATION, I CONTACTED MAINT TECHNICIAN THROUGH DISPATCH AND REQUESTED THEY CONFIRM THE ICE INCIDENT IN DEN. MAINT GOT BACK IN TOUCH WITH ME 30 MINS LATER AND CONFIRMED HER STORY. MAINT STATED THAT MAINT IN EWR WOULD INSPECT THE #2 ENG UPON ARR. AT EWR, I CONTACTED MAINT FOR THE THIRD TIME TO ENSURE THE PROPER ENTRIES WERE RECORDED INTO THE LOG. MY CONCERNS WERE FOR THE LEGAL IMPLICATIONS FOR MAINT, PREVIOUS CAPT AND MYSELF. IN CONCLUSION, I FEEL THAT PREVIOUS CAPT SHOULD HAVE HAD THE ENG INSPECTED IN DEN AND COULD HAVE BEEN MORE THOROUGH WITH ME IN OUR BRIEFING.

Data retrieved from NASA's ASRS site as of July 2007 and automatically converted to unabbreviated mixed upper/lowercase text. This report is for informational purposes with no guarantee of accuracy. See NASA's ASRS site for official report.