Mechanic was assigned a magnetic chip check and idg filter change jobcard for the #2 engine of a B73...

Attributes
ACN	979312
Time
Date	201111
Local Time Of Day	0001-0600
Place
Locale Reference	ZZZ.Airport
State Reference	US
Environment
Light	Night
Aircraft 1
Make Model Name	B737-800
Operating Under FAR Part	Part 121
Flight Phase	Parked
Component
Aircraft Component	Chip Detector
Person 1
Function	Technician
Qualification	Maintenance Airframe Maintenance Powerplant
Experience	Maintenance Technician 2
Events
Anomaly	Aircraft Equipment Problem Critical Deviation - Procedural Other / Unknown

Narrative:

[I was] assigned work card for #2 engine magnetic chips [check]/idg filter [change]. Inadvertently performed work on #1 engine instead of the assigned #2 engine. Notified local maintenance management and was advised that the #2 engine magnetic chips/idg filter has been re-scheduled. Will document work performed on #1 engine on non-routine card. This is best described as a simple mistake. However; just prior to performing the work; I hit my head on the main landing gear door while wiping the struts; which did daze me momentarily. This is also my first night on graveyard and I have only been back in maintenance approximately 3 months after many years in management.

Original NASA ASRS Text

Title: Mechanic was assigned a magnetic chip check and IDG filter change jobcard for the #2 engine of a B737-800 aircraft. The Mechanic hits his head on the main landing gear (MLG) door and inadvertently performs the work on #1 engine; on his first night back to work on graveyard shift.

Narrative: [I was] assigned work card for #2 engine magnetic chips [check]/IDG filter [change]. Inadvertently performed work on #1 engine instead of the assigned #2 engine. Notified local Maintenance Management and was advised that the #2 engine magnetic chips/IDG filter has been re-scheduled. Will document work performed on #1 engine on non-routine card. This is best described as a simple mistake. However; just prior to performing the work; I hit my head on the main landing gear door while wiping the struts; which did daze me momentarily. This is also my first night on graveyard and I have only been back in Maintenance approximately 3 months after many years in Management.

Data retrieved from NASA's ASRS site as of April 2012 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.

Mechanic was assigned a magnetic chip check and idg filter change jobcard for the #2 engine of a B737-800 aircraft. The mechanic hits his head on the main landing gear (medium large transport) door and inadvertently performs the work on #1 engine; on his first night back to work on graveyard shift.