A B757 flight crew discovered that company dispatch and maintenance were wrong in advising them to place an MEL placard on inoperative autobrakes rejected takeoff position at sju.

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Attributes
ACN	457090
Time
Date	199912
Day	Thu
Local Time Of Day	0601 To 1200
Place
Locale Reference	airport : zzz.airport
State Reference	FO
Altitude	agl single value : 0
Environment
Light	Daylight
Aircraft 1
Operator	common carrier : air carrier
Make Model Name	B757 Undifferentiated or Other Model
Operating Under FAR Part	Part 121
Flight Phase	ground : parked
Flight Plan	IFR
Person 1
Affiliation	company : air carrier
Function	flight crew : captain oversight : pic
Qualification	pilot : atp
ASRS Report	457090
Person 2
Affiliation	company : air carrier
Function	flight crew : first officer
Qualification	pilot : commercial pilot : instrument pilot : multi engine
Events
Anomaly	aircraft equipment problem : less severe maintenance problem : improper documentation maintenance problem : non compliance with mel
Independent Detector	other flight crewa
Resolutory Action	none taken : detected after the fact
Supplementary
Problem Areas	Flight Crew Human Performance Aircraft
Primary Problem	Flight Crew Human Performance
Air Traffic Incident	Pilot Deviation

Narrative:

At the runway end we encountered a problem arming our autobrakes for takeoff. After several attempts to set the autobrakes to rejected takeoff for takeoff, we called company dispatch and asked them to phone patch us to B757 technical service for help. We discussed the problem with technical service and tried a few circuit breakers in an attempt to clear our problem. When we were unable to fix the autobrakes, we started discussing crew placarding. I told both technical service and dispatch that we could not arm the autobrakes and the EICAS message was on. Dispatch said that autobrakes were listed in the aircraft MEL. I was looking at my MEL and talking to both dispatch and technical service when I questioned the second part of the MEL where it said 'no' for crew placarding. Technical service told me that the 'M' in front of the paragraph meant it was for maintenance only. Both dispatch and technical service concurred that I could crew placard the autobrakes. After departing, I looked up the definition of 'M' in the front of the MEL. At this point, I realized that we should not have crew placarded the autobrakes.

Original NASA ASRS Text

Title: A B757 FLC DISCOVERED THAT COMPANY DISPATCH AND MAINT WERE WRONG IN ADVISING THEM TO PLACE AN MEL PLACARD ON INOP AUTOBRAKES RTO POS AT SJU.

Narrative: AT THE RWY END WE ENCOUNTERED A PROB ARMING OUR AUTOBRAKES FOR TKOF. AFTER SEVERAL ATTEMPTS TO SET THE AUTOBRAKES TO RTO FOR TKOF, WE CALLED COMPANY DISPATCH AND ASKED THEM TO PHONE PATCH US TO B757 TECHNICAL SVC FOR HELP. WE DISCUSSED THE PROB WITH TECHNICAL SVC AND TRIED A FEW CIRCUIT BREAKERS IN AN ATTEMPT TO CLR OUR PROB. WHEN WE WERE UNABLE TO FIX THE AUTOBRAKES, WE STARTED DISCUSSING CREW PLACARDING. I TOLD BOTH TECHNICAL SVC AND DISPATCH THAT WE COULD NOT ARM THE AUTOBRAKES AND THE EICAS MESSAGE WAS ON. DISPATCH SAID THAT AUTOBRAKES WERE LISTED IN THE ACFT MEL. I WAS LOOKING AT MY MEL AND TALKING TO BOTH DISPATCH AND TECHNICAL SVC WHEN I QUESTIONED THE SECOND PART OF THE MEL WHERE IT SAID 'NO' FOR CREW PLACARDING. TECHNICAL SVC TOLD ME THAT THE 'M' IN FRONT OF THE PARAGRAPH MEANT IT WAS FOR MAINT ONLY. BOTH DISPATCH AND TECHNICAL SVC CONCURRED THAT I COULD CREW PLACARD THE AUTOBRAKES. AFTER DEPARTING, I LOOKED UP THE DEFINITION OF 'M' IN THE FRONT OF THE MEL. AT THIS POINT, I REALIZED THAT WE SHOULD NOT HAVE CREW PLACARDED THE AUTOBRAKES.

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.