An engine inspector reports he had inadvertently ordered a cleaning process for a big PW4000 engine ...

Narrative:

While working down cycle inspection of big engine pw 4000 in engine shop flow line area and routing of piece parts from the # 1.5 bearing assembly; the big engine pw 4000 engineering document for inspection; refers you to the small engine pw 4000 engineering document for routing of specific parts. While scheduling the 1.5 bearing support assembly; I accidentally looked at the wrong engine type engineering document for inspection; since both books were open and needed for routing of parts. A job card was made using the wrong part number (P/north) which resulted in scheduling the wrong cleaning process for the material type of the part. The part is waiting engine engineering disposition since it was etched/damaged.

Original NASA ASRS Text

Title: An Engine Inspector reports he had inadvertently ordered a cleaning process for a big PW4000 engine on the number 1.5 bearing support assembly; using an engineering document for a small PW4000 series engine. The bearing support assembly was etched and damaged by the incorrect procedure.

Narrative: While working down cycle inspection of big engine PW 4000 in engine shop flow line area and routing of piece parts from the # 1.5 bearing assembly; the big engine PW 4000 engineering document for inspection; refers you to the small engine PW 4000 engineering document for routing of specific parts. While scheduling the 1.5 bearing support assembly; I accidentally looked at the wrong engine type engineering document for inspection; since both books were open and needed for routing of parts. A job card was made using the wrong part number (P/N) which resulted in scheduling the wrong cleaning process for the material type of the part. The part is waiting engine engineering disposition since it was etched/damaged.

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.

Attributes
ACN	850583
Time
Date	200909
Local Time Of Day	1201-1800
Place
Locale Reference	ZZZ.Airport
State Reference	US
Aircraft 1
Make Model Name	No Aircraft
Operating Under FAR Part	Part 121
Component
Aircraft Component	Aircraft Documentation
Person 1
Function	Inspector
Qualification	Maintenance Airframe Maintenance Powerplant
Events
Anomaly	Deviation - Procedural Published Material / Policy

An engine inspector reports he had inadvertently ordered a cleaning process for a big PW4000 engine on the number 1.5 bearing support assembly; using an engineering document for a small PW4000 series engine. The bearing support assembly was etched and damaged by the incorrect procedure.