Narrative:

Aircraft X had a #3 engine change and l-hand and r-hand reverser change needed due to bird strike investigation. As per our work cards for l-hand reverser installation; we were to loosen up the 'V' band bolts to assist in seating the reverser half to the aft flange of fan section of the engine. Per work card X; we were to close reverser half. We found that the l-hand reverser indeed seated itself good without the need to adjust this 'V' band ring. After that per our work card X; we found the r-hand reverser half seated itself as well without the need to loosen or adjust 'V' band ring. All hinges associated with this area were within limits. Therefore; we never loosened the l-hand and never had the need to tighten the 'V' band bolts. The problem was the next night all of the mechanics were discussing the engine/reverser change and to my understanding the reversers were shipped with the 'V' band bolts already loose on the r-hand reverser and tight on the l-hand reverser to our knowledge. My lead contacted maintenance control for the item. They contacted ZZZ1 station and asked them to rechk the torque on the 'V' band bolts on both l-hand and r-hand reverser sections. I was told that some of the bolts on the r-hand side were loose but the l-hand side was tight and within limits.

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Original NASA ASRS Text

Title: AN MD10-10 WITH #3 ENG CHANGE AND L AND R REVERSER CHANGE. L REVERSER AND R REVERSER SEATED TO AFT ENG FLANGE WITH NO ADJUSTMENT. LATER ADVISED SHOP SENDS OUT REVERSER PAIRS WITH R REVERSER 'V' BAND BOLTS LOOSE FOR FIT ADJUSTMENT. DOWNLINE STATION ADVISED AND FOUND BOLTS LOOSE.

Narrative: ACFT X HAD A #3 ENG CHANGE AND L-HAND AND R-HAND REVERSER CHANGE NEEDED DUE TO BIRD STRIKE INVESTIGATION. AS PER OUR WORK CARDS FOR L-HAND REVERSER INSTALLATION; WE WERE TO LOOSEN UP THE 'V' BAND BOLTS TO ASSIST IN SEATING THE REVERSER HALF TO THE AFT FLANGE OF FAN SECTION OF THE ENG. PER WORK CARD X; WE WERE TO CLOSE REVERSER HALF. WE FOUND THAT THE L-HAND REVERSER INDEED SEATED ITSELF GOOD WITHOUT THE NEED TO ADJUST THIS 'V' BAND RING. AFTER THAT PER OUR WORK CARD X; WE FOUND THE R-HAND REVERSER HALF SEATED ITSELF AS WELL WITHOUT THE NEED TO LOOSEN OR ADJUST 'V' BAND RING. ALL HINGES ASSOCIATED WITH THIS AREA WERE WITHIN LIMITS. THEREFORE; WE NEVER LOOSENED THE L-HAND AND NEVER HAD THE NEED TO TIGHTEN THE 'V' BAND BOLTS. THE PROB WAS THE NEXT NIGHT ALL OF THE MECHS WERE DISCUSSING THE ENG/REVERSER CHANGE AND TO MY UNDERSTANDING THE REVERSERS WERE SHIPPED WITH THE 'V' BAND BOLTS ALREADY LOOSE ON THE R-HAND REVERSER AND TIGHT ON THE L-HAND REVERSER TO OUR KNOWLEDGE. MY LEAD CONTACTED MAINT CTL FOR THE ITEM. THEY CONTACTED ZZZ1 STATION AND ASKED THEM TO RECHK THE TORQUE ON THE 'V' BAND BOLTS ON BOTH L-HAND AND R-HAND REVERSER SECTIONS. I WAS TOLD THAT SOME OF THE BOLTS ON THE R-HAND SIDE WERE LOOSE BUT THE L-HAND SIDE WAS TIGHT AND WITHIN LIMITS.

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.