A line mechanic reports an incorrect MEL had been applied to an airbus aircraft with CF6-80a3 engine...

Attributes
ACN	1065030
Time
Date	201301
Local Time Of Day	0001-0600
Place
Locale Reference	ZZZ.Airport
State Reference	US
Environment
Light	Night
Aircraft 1
Make Model Name	Airbus Industrie Undifferentiated or Other Model
Operating Under FAR Part	Part 121
Flight Phase	Parked
Component
Aircraft Component	Minimum Equipment List (MEL)
Person 1
Function	Technician
Qualification	Maintenance Airframe Maintenance Powerplant
Events
Anomaly	Aircraft Equipment Problem Critical Deviation - Procedural FAR Deviation - Procedural Published Material / Policy

Narrative:

Airbus aircraft had CF6-80a3 engines and I referenced MEL 36-11-03 that referenced CF6-90c2 engines for high pressure (hp) valve inoperative (inop). If the aircraft had CF6-80c2 engines; the MEL would apply. However; it did not have CF6-80c2 engines; which would not require a lock-out of the thrust reverser (T/right). Because of this error; the thrust reverser was locked-out when it was not required; nor documented as such. Pilot tried to use the T/right when landing and the number 2 T/right was locked-out with no documentation. When I looked up the engine type for this aircraft under aircraft component control; I [had] looked at the engine type incorrectly by two letters; so an error was made. [Recommend] slow down and double check the documents.

Original NASA ASRS Text

Title: A Line Mechanic reports an incorrect MEL had been applied to an Airbus aircraft with CF6-80A3 engines. Number Two Engine Thrust Reverser (T/R) had been locked out when it was not required and was not documented. Pilot had tried to use the T/R on landing.

Narrative: Airbus aircraft had CF6-80A3 engines and I referenced MEL 36-11-03 that referenced CF6-90C2 engines for High Pressure (HP) Valve inoperative (inop). If the aircraft had CF6-80C2 engines; the MEL would apply. However; it did not have CF6-80C2 engines; which would not require a lock-out of the Thrust Reverser (T/R). Because of this error; the Thrust Reverser was locked-out when it was not required; nor documented as such. Pilot tried to use the T/R when landing and the Number 2 T/R was locked-out with no documentation. When I looked up the Engine type for this aircraft under Aircraft Component Control; I [had] looked at the engine type incorrectly by two letters; so an error was made. [Recommend] slow down and double check the documents.

Data retrieved from NASA's ASRS site as of July 2013 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.

A line mechanic reports an incorrect MEL had been applied to an airbus aircraft with CF6-80a3 engines. Number two engine thrust reverser (T/right) had been locked out when it was not required and was not documented. Pilot had tried to use the T/right on landing.