A contract mechanic reports he was involved in removing and replacing the # 5 bearing oil lines on a...

Narrative:

I was involved in removing and replacing the #5 bearing oil lines on an A319; V2500 engine during a line overnight check. After removal (of the lines); I went inside and brought all my 'old' (removed) hardware with me. Another mechanic then brought me out a tray of hardware that was ready for installation; as it was clean and inspected. This tray included bolts; tubing; and insulation blankets. I began to reinstall the parts; but I didn't notice that this set was missing a piece. This claimed piece being an insulation blanket that went around the #5 bearing cover plate. The job was then inspected; closed up; leak checked; and signed off. I put the red tag with the old (removed) parts and went home. The following week I get a call from my coordinator asking me about the part; telling me they had found it. I told the truth and said I didn't have any extra parts. I also said if the tray was complete; as far as the parts were concerned... Than it was on. He then asked me if I remember putting it on; I told him I did not.

Original NASA ASRS Text

Title: A Contract Mechanic reports he was involved in removing and replacing the # 5 Bearing oil lines on an A319; V2500 engine. The insulation blanket shroud around the oil cover plate was inadvertently not reinstalled.

Narrative: I was involved in removing and replacing the #5 Bearing oil lines on an A319; V2500 engine during a Line overnight check. After removal (of the lines); I went inside and brought all my 'old' (removed) hardware with me. Another Mechanic then brought me out a tray of hardware that was ready for installation; as it was clean and Inspected. This tray included bolts; tubing; and insulation blankets. I began to reinstall the parts; but I didn't notice that this set was missing a piece. This claimed piece being an Insulation blanket that went around the #5 bearing cover plate. The job was then Inspected; closed up; Leak checked; and signed off. I put the red tag with the old (removed) parts and went home. The following week I get a call from my Coordinator asking me about the part; telling me they had found it. I told the truth and said I didn't have any extra parts. I also said if the tray was complete; as far as the parts were concerned... than it was on. He then asked me if I remember putting it on; I told him I did not.

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	859141
Time
Date	200910
Local Time Of Day	0601-1200
Place
Locale Reference	ZZZ.Airport
State Reference	US
Environment
Light	Daylight
Aircraft 1
Make Model Name	A319
Operating Under FAR Part	Part 121
Flight Phase	Parked
Component
Aircraft Component	Oil Line
Person 1
Function	Technician
Qualification	Maintenance Airframe Maintenance Powerplant
Experience	Maintenance Technician 8
Events
Anomaly	Aircraft Equipment Problem Critical Deviation - Procedural Published Material / Policy

A contract mechanic reports he was involved in removing and replacing the # 5 bearing oil lines on an A319; V2500 engine. The insulation blanket shroud around the oil cover plate was inadvertently not reinstalled.