Narrative:

On landing, none of the 4 engines would come into reverse. Maintenance found a closed hydraulic valve in the system. The airplane had just come from overhaul. We have no check or means (prior to flying) to determine if the system is in fact operational. We were in technical violation of an altitude limitation with one or more of our inboard reversers inoperative, not to mention we could not have executed an emergency descent nor would we have had reverse on landing at destination if there had been any runway or WX problems. We have many 'B' scale mechanics, sometimes I wonder.

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Original NASA ASRS Text

Title: ACR HVT UNABLE REVERSE ON LNDG DUE TO MAINTENANCE NOT PLACING ONLY HYDRAULIC SHUT OFF VALVE IN OPEN POSITION AT COMPLETION OF WORK.

Narrative: ON LNDG, NONE OF THE 4 ENGS WOULD COME INTO REVERSE. MAINT FOUND A CLOSED HYD VALVE IN THE SYS. THE AIRPLANE HAD JUST COME FROM OVERHAUL. WE HAVE NO CHK OR MEANS (PRIOR TO FLYING) TO DETERMINE IF THE SYS IS IN FACT OPERATIONAL. WE WERE IN TECHNICAL VIOLATION OF AN ALT LIMITATION WITH ONE OR MORE OF OUR INBOARD REVERSERS INOP, NOT TO MENTION WE COULD NOT HAVE EXECUTED AN EMER DSCNT NOR WOULD WE HAVE HAD REVERSE ON LNDG AT DEST IF THERE HAD BEEN ANY RWY OR WX PROBS. WE HAVE MANY 'B' SCALE MECHS, SOMETIMES I WONDER.

Data retrieved from NASA's ASRS site as of August 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.