<< >> NASA ASRS Report 201725, February 1992

Takeoff delayed of air carrier large transport while two dispatchers argue technicalities of the MEL requirements as related to aircraft equipment problem and aircraft equipment operating procedure.

Attributes
ACN	201725
Time
Date	199202
Day	Sat
Local Time Of Day	1201 To 1800
Place
Locale Reference	airport : den
State Reference	CO
Altitude	agl bound lower : 0 agl bound upper : 0
Environment
Flight Conditions	VMC
Light	Daylight
Aircraft 1
Operator	common carrier : air carrier
Make Model Name	Large Transport, Low Wing, 3 Turbojet Eng
Flight Phase	ground : preflight
Flight Plan	IFR
Person 1
Affiliation	company : air carrier
Function	other personnel other personnel other
Qualification	other pilot : private
Experience	flight time total : 250
ASRS Report	201725
Person 2
Affiliation	company : air carrier
Function	other personnel other personnel other
Qualification	other
Events
Anomaly	aircraft equipment problem : less severe non adherence : published procedure other anomaly other
Independent Detector	other other : unspecified
Resolutory Action	other
Consequence	Other
Supplementary
Air Traffic Incident	other
Situations
Publication	Unspecified

Narrative:

'Flight a' released with MEL 28-04 (left fwd boost pump) and MEL 28-11 (#2 fuel quantity inoperative). The dispatcher releasing the next flight (B) following flight a felt that the 2 above mels were conflicting and had the airplane return to gate in denver and took over an hour delay. After much research by all dispatchers involved in handling this aircraft it was decided that the mels were not conflicting and that the dispatcher on flight B was in error. To correct the situation I should have listed the limitation (maximum- landing weight climb limit) in the 'subject to the following conditions' on the release. The problem was caused by the people not reading the MEL closely enough.

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Original NASA ASRS Text

Title: TKOF DELAYED OF ACR LGT WHILE TWO DISPATCHERS ARGUE TECHNICALITIES OF THE MEL REQUIREMENTS AS RELATED TO ACFT EQUIP PROBLEM AND ACFT EQUIP OPERATING PROC.

Narrative: 'FLT A' RELEASED WITH MEL 28-04 (L FWD BOOST PUMP) AND MEL 28-11 (#2 FUEL QUANTITY INOP). THE DISPATCHER RELEASING THE NEXT FLT (B) FOLLOWING FLT A FELT THAT THE 2 ABOVE MELS WERE CONFLICTING AND HAD THE AIRPLANE RETURN TO GATE IN DENVER AND TOOK OVER AN HR DELAY. AFTER MUCH RESEARCH BY ALL DISPATCHERS INVOLVED IN HANDLING THIS ACFT IT WAS DECIDED THAT THE MELS WERE NOT CONFLICTING AND THAT THE DISPATCHER ON FLT B WAS IN ERROR. TO CORRECT THE SITUATION I SHOULD HAVE LISTED THE LIMITATION (MAX- LNDG WT CLB LIMIT) IN THE 'SUBJECT TO THE FOLLOWING CONDITIONS' ON THE RELEASE. THE PROBLEM WAS CAUSED BY THE PEOPLE NOT READING THE MEL CLOSELY ENOUGH.

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.