Medium large transport aircraft dispatch release did not show the latest engine model change.

Attributes
ACN	215011
Time
Date	199207
Day	Sun
Local Time Of Day	0601 To 1200
Place
Locale Reference	airport : dtw
State Reference	MI
Altitude	agl bound lower : 0 agl bound upper : 0
Aircraft 1
Operator	common carrier : air carrier
Make Model Name	Medium Large Transport, Low Wing, 2 Turbojet Eng
Flight Phase	ground : preflight
Flight Plan	IFR
Person 1
Affiliation	company : air carrier
Function	flight crew : captain oversight : pic
Qualification	pilot : atp
Experience	flight time last 90 days : 200 flight time total : 14000 flight time type : 6000
ASRS Report	215011
Person 2
Affiliation	company : air carrier
Function	other personnel other
Qualification	other other : other
Events
Anomaly	non adherence other other anomaly other
Independent Detector	other flight crewa
Resolutory Action	none taken : detected after the fact
Supplementary
Primary Problem	Aircraft
Air Traffic Incident	other

Narrative:

Note aircraft number paperwork releases, MEL, showed -a engines while there were actually -B engines installed on the aircraft. Note performance on -B better than -a's and fuel burn actually less than shown on all paperwork. Engineering had not put in dispatch's computer the change therefore releases showed -B engines while aircraft had -a engines.

Original NASA ASRS Text

Title: MLG ACFT DISPATCH RELEASE DID NOT SHOW THE LATEST ENG MODEL CHANGE.

Narrative: NOTE ACFT NUMBER PAPERWORK RELEASES, MEL, SHOWED -A ENGS WHILE THERE WERE ACTUALLY -B ENGS INSTALLED ON THE ACFT. NOTE PERFORMANCE ON -B BETTER THAN -A'S AND FUEL BURN ACTUALLY LESS THAN SHOWN ON ALL PAPERWORK. ENGINEERING HAD NOT PUT IN DISPATCH'S COMPUTER THE CHANGE THEREFORE RELEASES SHOWED -B ENGS WHILE ACFT HAD -A ENGS.

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.