Narrative:

ACARS message told us to divert from dtw-sfo flight to msp because of mtc message indicating metal shavings on magnetic plug in the #2 engine accessory section. All engine instruments were normal as was landing break down in communication in maintenance department because crew was not notified.

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Original NASA ASRS Text

Title: ACR LGT ACFT OPERATED INADVERTENTLY WITH ONE OF IT'S 2 ENGS SHOWING A POTENTIAL MAJOR PROBLEM.

Narrative: ACARS MESSAGE TOLD US TO DIVERT FROM DTW-SFO FLT TO MSP BECAUSE OF MTC MESSAGE INDICATING METAL SHAVINGS ON MAGNETIC PLUG IN THE #2 ENG ACCESSORY SECTION. ALL ENG INSTS WERE NORMAL AS WAS LNDG BREAK DOWN IN COM IN MAINT DEPT BECAUSE CREW WAS NOT NOTIFIED.

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.