A B757-200 was dispatched with the wrong aft cargo system fan deferred. The aft cargo heat fan failed but the aft cargo smoke detector fan was deferred in error.

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Attributes
ACN	421380
Time
Date	199812
Day	Tue
Local Time Of Day	0601 To 1200
Place
Locale Reference	airport : zzz
State Reference	US
Altitude	agl bound lower : 0 agl bound upper : 0
Environment
Light	Daylight
Aircraft 1
Operator	common carrier : air carrier
Make Model Name	B757-200
Navigation In Use	Other Other
Flight Phase	other
Flight Plan	None
Person 1
Affiliation	company : air carrier
Function	other personnel other
Qualification	other other : other
ASRS Report	421380
Events
Anomaly	aircraft equipment problem : less severe non adherence : published procedure non adherence : far other anomaly other
Independent Detector	other other : unspecified
Resolutory Action	none taken : detected after the fact
Consequence	Other
Supplementary
Air Traffic Incident	other

Narrative:

Aircraft xyz, dec/xa/98, flight zyz, used wrong MEL number. Used xx-yy-zz aft detector fan message, should have used zz- yy-zz aft cargo fan message. I was at fault, I knew better I let myself get in a hurry.

Original NASA ASRS Text

Title: A B757-200 WAS DISPATCHED WITH THE WRONG AFT CARGO SYS FAN DEFERRED. THE AFT CARGO HEAT FAN FAILED BUT THE AFT CARGO SMOKE DETECTOR FAN WAS DEFERRED IN ERROR.

Narrative: ACFT XYZ, DEC/XA/98, FLT ZYZ, USED WRONG MEL NUMBER. USED XX-YY-ZZ AFT DETECTOR FAN MESSAGE, SHOULD HAVE USED ZZ- YY-ZZ AFT CARGO FAN MESSAGE. I WAS AT FAULT, I KNEW BETTER I LET MYSELF GET IN A HURRY.

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.