Narrative:

I was tasked to go to station for a borescope inspection of the r-hand engine on aircraft due to FOD. I arrive and performed the inspection in accordance with rolls royce maintenance manual task #05-50-00 (inspection of engine for FOD). I performed an inspection of the inlet area; containment case; core vane; bypass vanes; inlet igv's; stage 1 compressor rotor; and the stage 14 compressor rotor. No damage by FOD was found. After completion of my work; I reviewed the manual to make sure everything was covered; and noticed that the manual also called for a reading of the engine parameters if available. I understood this to mean that if the flight data recorder reader was available that I was to check it. This was not available to me; so I didn't perform this part of the inspection because I understood it to be optional. I also had opportunity once the engine was apart for repairs to look even closer at the igv's and the compressor rotor; and I did not see any FOD; confirming the borescope findings. Also; the pilots did not squawk any engine problems in the logbook. The FOD was found on their postflt walkaround. After returning home from the trip; I continued to assess to events of the week in my mind; and the question of whether it meant doing a cmc download or a flight data recorder download weighed on me. So I called the rolls royce engineer and asked him what it meant in that portion of the inspection. He informed me that it was talking about the cmc download; and not the flight data recorder.

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Original NASA ASRS Text

Title: AN EMB140 HAD THE R ENG BORESCOPE INSPECTED FOR FOD AND THE ENG WAS FOUND SVCABLE. DUE TO MANUAL CONFUSION ENG PARAMETERS WERE NOT RECORDED.

Narrative: I WAS TASKED TO GO TO STATION FOR A BORESCOPE INSPECTION OF THE R-HAND ENG ON ACFT DUE TO FOD. I ARRIVE AND PERFORMED THE INSPECTION IN ACCORDANCE WITH ROLLS ROYCE MAINT MANUAL TASK #05-50-00 (INSPECTION OF ENG FOR FOD). I PERFORMED AN INSPECTION OF THE INLET AREA; CONTAINMENT CASE; CORE VANE; BYPASS VANES; INLET IGV'S; STAGE 1 COMPRESSOR ROTOR; AND THE STAGE 14 COMPRESSOR ROTOR. NO DAMAGE BY FOD WAS FOUND. AFTER COMPLETION OF MY WORK; I REVIEWED THE MANUAL TO MAKE SURE EVERYTHING WAS COVERED; AND NOTICED THAT THE MANUAL ALSO CALLED FOR A READING OF THE ENG PARAMETERS IF AVAILABLE. I UNDERSTOOD THIS TO MEAN THAT IF THE FLT DATA RECORDER READER WAS AVAILABLE THAT I WAS TO CHK IT. THIS WAS NOT AVAILABLE TO ME; SO I DIDN'T PERFORM THIS PART OF THE INSPECTION BECAUSE I UNDERSTOOD IT TO BE OPTIONAL. I ALSO HAD OPPORTUNITY ONCE THE ENG WAS APART FOR REPAIRS TO LOOK EVEN CLOSER AT THE IGV'S AND THE COMPRESSOR ROTOR; AND I DID NOT SEE ANY FOD; CONFIRMING THE BORESCOPE FINDINGS. ALSO; THE PLTS DID NOT SQUAWK ANY ENG PROBS IN THE LOGBOOK. THE FOD WAS FOUND ON THEIR POSTFLT WALKAROUND. AFTER RETURNING HOME FROM THE TRIP; I CONTINUED TO ASSESS TO EVENTS OF THE WK IN MY MIND; AND THE QUESTION OF WHETHER IT MEANT DOING A CMC DOWNLOAD OR A FLT DATA RECORDER DOWNLOAD WEIGHED ON ME. SO I CALLED THE ROLLS ROYCE ENGINEER AND ASKED HIM WHAT IT MEANT IN THAT PORTION OF THE INSPECTION. HE INFORMED ME THAT IT WAS TALKING ABOUT THE CMC DOWNLOAD; AND NOT THE FLT DATA RECORDER.

Data retrieved from NASA's ASRS site as of January 2009 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.