Narrative:

Placarded broadband indication system per 77-05A; when aircraft had pilot report on high engine vibration on left engine. Re-read the maintenance manual and operations manual on engine vibration limits; and read the operation-south and description of the engine vibration monitor. Contributing factors: lack of training program.

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Original NASA ASRS Text

Title: A B757-200 WAS DISPATCHED WITH A DEFERRED ITEM ON THE #1 ENG VIBRATION INDICATION. TECHNICIAN DID NOT UNDERSTAND THAT ENG LIMITS WERE NOT EXCEEDED.

Narrative: PLACARDED BROADBAND INDICATION SYS PER 77-05A; WHEN ACFT HAD PLT RPT ON HIGH ENG VIBRATION ON L ENG. RE-READ THE MAINT MANUAL AND OPS MANUAL ON ENG VIBRATION LIMITS; AND READ THE OP-S AND DESCRIPTION OF THE ENG VIBRATION MONITOR. CONTRIBUTING FACTORS: LACK OF TRAINING PROGRAM.

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.