<< >> NASA ASRS Report 291345, December 1994

Maintenance failed to properly record an MEL deferred discrepancy resulting in omitting a weight restriction.

Attributes
ACN	291345
Time
Date	199412
Day	Wed
Local Time Of Day	1201 To 1800
Place
Locale Reference	airport : sfo
State Reference	CA
Altitude	agl bound lower : 0 agl bound upper : 0
Environment
Flight Conditions	VMC
Light	Daylight
Aircraft 1
Controlling Facilities	tower : crw
Operator	common carrier : air carrier
Make Model Name	B747-C/F
Operating Under FAR Part	Part 121
Navigation In Use	Other
Flight Phase	ground : preflight
Person 1
Affiliation	company : air carrier
Function	flight crew : first officer
Qualification	pilot : atp
Experience	flight time last 90 days : 100 flight time total : 9000 flight time type : 1000
ASRS Report	291345
Person 2
Affiliation	company : air carrier
Function	flight crew : captain oversight : pic
Qualification	pilot : atp
Events
Anomaly	aircraft equipment problem : less severe non adherence other other anomaly other
Independent Detector	other flight crewa
Resolutory Action	none taken : anomaly accepted none taken : detected after the fact
Consequence	Other
Supplementary
Primary Problem	Aircraft
Air Traffic Incident	other

Narrative:

The aircraft had an MEL item written up in the log. The write-up was the inverse of what actually was the problem. We discovered this later if it had been correctly entered in MEL weight penalty should have been noted on the paperwork. At our takeoff and landing weights it was no factor. But, if the aircraft had been heavier, it would have limited us. Maintenance was advised of error.

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Original NASA ASRS Text

Title: MAINT FAILED TO PROPERLY RECORD AN MEL DEFERRED DISCREPANCY RESULTING IN OMITTING A WT RESTRICTION.

Narrative: THE ACFT HAD AN MEL ITEM WRITTEN UP IN THE LOG. THE WRITE-UP WAS THE INVERSE OF WHAT ACTUALLY WAS THE PROB. WE DISCOVERED THIS LATER IF IT HAD BEEN CORRECTLY ENTERED IN MEL WT PENALTY SHOULD HAVE BEEN NOTED ON THE PAPERWORK. AT OUR TKOF AND LNDG WTS IT WAS NO FACTOR. BUT, IF THE ACFT HAD BEEN HEAVIER, IT WOULD HAVE LIMITED US. MAINT WAS ADVISED OF ERROR.

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.