Narrative:

Deferred #1 engine stow light because of inbound write-up. Deferred it per MEL chapter 78. There is no mention in the MEL xx that if another reverser is deactivated per MEL yy amber light, that a reverser can't be deferred for the blue light. There is no mention about amber lights in MEL xx. In MEL yy under special notes paragraph (B)(#4), the reverser not stow (blue) light operates normally. There should be a xref about the lights, MEL is not clear about the lights in xx.

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Original NASA ASRS Text

Title: A B727-200 WAS DISPATCHED WITH 2 REVERSER SYS INOP IN THE NORMAL MODE DUE TO CONFUSION AND MISUNDERSTANDING IN THE INTERP OF THE MEL.

Narrative: DEFERRED #1 ENG STOW LIGHT BECAUSE OF INBOUND WRITE-UP. DEFERRED IT PER MEL CHAPTER 78. THERE IS NO MENTION IN THE MEL XX THAT IF ANOTHER REVERSER IS DEACTIVATED PER MEL YY AMBER LIGHT, THAT A REVERSER CAN'T BE DEFERRED FOR THE BLUE LIGHT. THERE IS NO MENTION ABOUT AMBER LIGHTS IN MEL XX. IN MEL YY UNDER SPECIAL NOTES PARAGRAPH (B)(#4), THE REVERSER NOT STOW (BLUE) LIGHT OPERATES NORMALLY. THERE SHOULD BE A XREF ABOUT THE LIGHTS, MEL IS NOT CLR ABOUT THE LIGHTS IN XX.

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.