Narrative:

Air carrier flight XXX apr/xa/00 atl-srq, MD80 with MEL's (see attached). Dispatcher overlooked MEL B cockpit/cabin compartment temperature control valves. Flight originally dispatched FL330 and revised after pushback to FL250. Actual combination of 2 MEL's (MEL B and MEL a) restr operation further as items were on different sides/pack system. Aircraft should have been limited to FL100 (10000 ft) unpressurized. Crew discovered en route.

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Original NASA ASRS Text

Title: AN MD80 WAS DISPATCHED TO OPERATE AT FL250 IN NON COMPLIANCE WITH 2 DEFERRED ITEMS LIMITING THE MAX ALT TO 10000 FT PER THE MEL.

Narrative: ACR FLT XXX APR/XA/00 ATL-SRQ, MD80 WITH MEL'S (SEE ATTACHED). DISPATCHER OVERLOOKED MEL B COCKPIT/CABIN COMPARTMENT TEMP CTL VALVES. FLT ORIGINALLY DISPATCHED FL330 AND REVISED AFTER PUSHBACK TO FL250. ACTUAL COMBINATION OF 2 MEL'S (MEL B AND MEL A) RESTR OP FURTHER AS ITEMS WERE ON DIFFERENT SIDES/PACK SYS. ACFT SHOULD HAVE BEEN LIMITED TO FL100 (10000 FT) UNPRESSURIZED. CREW DISCOVERED ENRTE.

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.