Maintenance was unaware of wiring behind structure when drilling out holes to install panel.

Attributes
ACN	1333612
Time
Date	201602
Local Time Of Day	0001-0600
Place
Locale Reference	ZZZ.Airport
State Reference	US
Environment
Light	Night
Aircraft 1
Make Model Name	B767-300 and 300 ER
Operating Under FAR Part	Part 121
Flight Phase	Parked
Flight Plan	IFR
Person 1
Function	Technician
Events
Anomaly	Aircraft Equipment Problem Less Severe Deviation - Procedural Maintenance Deviation - Procedural Published Material / Policy

Narrative:

A new panel was ordered from shop. The panel holes from shop were too small and did not align with the structure. Holes were sized up on the bench; and were still too small. While installing panel holes were so far off it needed to be drilled up on aircraft. Was unaware any wiring was behind structure. Was unaware any damaged occurred while installing panel. Holes in the panel did not align with the holes in the structure. Holes in panel were incorrect size for the rivnuts. Holes in panel already drilled up to proper size.

Original NASA ASRS Text

Title: Maintenance was unaware of wiring behind structure when drilling out holes to install panel.

Narrative: A new panel was ordered from shop. The panel holes from shop were too small and did not align with the structure. Holes were sized up on the bench; and were still too small. While installing panel holes were so far off it needed to be drilled up on aircraft. Was unaware any wiring was behind structure. Was unaware any damaged occurred while installing panel. Holes in the panel did not align with the holes in the structure. Holes in panel were incorrect size for the rivnuts. Holes in panel already drilled up to proper size.

Data retrieved from NASA's ASRS site 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.