<< >> NASA ASRS Report 525095, September 2001

A B757-200 was dispatched from a maintenance station with a left bleed off light inoperative in conflict with the MEL.

Attributes
ACN	525095
Time
Date	200109
Day	Wed
Local Time Of Day	1201 To 1800
Place
Locale Reference	airport : zzz.airport
State Reference	US
Altitude	agl single value : 0
Environment
Light	Daylight
Aircraft 1
Operator	common carrier : air carrier
Make Model Name	B757-200
Operating Under FAR Part	Part 121
Flight Phase	ground : maintenance ground : takeoff roll
Flight Plan	IFR
Person 1
Affiliation	company : air carrier
Function	oversight : supervisor oversight : coordinator
Qualification	technician : airframe technician : powerplant
Experience	maintenance avionics : 6 maintenance technician : 11
ASRS Report	525095
Person 2
Affiliation	company : air carrier
Function	flight crew : captain oversight : pic
Events
Anomaly	aircraft equipment problem : critical maintenance problem : non compliance with mel non adherence : published procedure non adherence : far
Independent Detector	aircraft equipment other aircraft equipment : left bleed off light other flight crewa other flight crewb
Resolutory Action	flight crew : rejected takeoff
Consequence	Other
Factors
Maintenance	contributing factor : schedule pressure contributing factor : manuals performance deficiency : non compliance with legal requirements performance deficiency : logbook entry
Supplementary
Problem Areas	Aircraft Chart Or Publication Maintenance Human Performance
Primary Problem	Maintenance Human Performance

Narrative:

At XA00 eastern, wed I received a radio call from ship flight crew on the taxiway here in ZZZ. The crew reported at between 30 to 40 KTS on takeoff roll they got a left engine bled off light in the switch. Discontinued takeoff. I had the crew run up the engine while I checked for history, none found. The crew reported they never lost duct pressure and light went out, never came back on. On engine run up all checked good. Crew and maintenance both satisfied crew had a log book entry do to throttles advanced for takeoff I sent them to continue in service message and flight departed. Today at XB00 eastern, thu, maintenance called asking about the legality of continue service at a maintenance station operations manual reference only a continue in service from a non maintenance station.

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Original NASA ASRS Text

Title: A B757-200 WAS DISPATCHED FROM A MAINT STATION WITH A LEFT BLEED OFF LIGHT INOPERATIVE IN CONFLICT WITH THE MEL.

Narrative: AT XA00 EASTERN, WED I RECEIVED A RADIO CALL FROM SHIP FLC ON THE TXWY HERE IN ZZZ. THE CREW RPTED AT BETWEEN 30 TO 40 KTS ON TKOF ROLL THEY GOT A LEFT ENG BLED OFF LIGHT IN THE SWITCH. DISCONTINUED TKOF. I HAD THE CREW RUN UP THE ENG WHILE I CHECKED FOR HISTORY, NONE FOUND. THE CREW REPORTED THEY NEVER LOST DUCT PRESSURE AND LIGHT WENT OUT, NEVER CAME BACK ON. ON ENG RUN UP ALL CHECKED GOOD. CREW AND MAINT BOTH SATISFIED CREW HAD A LOG BOOK ENTRY DO TO THROTTLES ADVANCED FOR TKOF I SENT THEM TO CONTINUE IN SVC MESSAGE AND FLT DEPARTED. TODAY AT XB00 EASTERN, THU, MAINT CALLED ASKING ABOUT THE LEGALITY OF CONTINUE SVC AT A MAINT STATION OPS MANUAL REFERENCE ONLY A CONTINUE IN SVC FROM A NON MAINT STATION.

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.