Narrative:

I performed engineering order on aircraft on mar/sat/07. I installed jumper wire from TB5026 to ps92p2 pin #3 in error due to the misleading illustration in engineering order that shows ps92p1 as #2 in the bottom right of the dimmer (ballast) PS92. On both aircraft there was no label or stating the plug (connector) number. I did not look at the top plug (connector) because of the illustration. I did the operational test of the light in accordance with engineering order and it tested good. I was talking with another mechanic and shown that there was a label zip tied to the wire bundle that goes into the top left of the dimmer (ballast) PS92 that reads ps92p1.

Related reports:

Google
 

Original NASA ASRS Text

Title: CRJ-700 ACFT HAD MIS-PINNED LAVATORY LIGHT DIMMER CONNECTORS. THE ENGINEERING ORDER DIAGRAM TO DEACTIVATE DIMMER WAS MISLEADING.

Narrative: I PERFORMED ENGINEERING ORDER ON ACFT ON MAR/SAT/07. I INSTALLED JUMPER WIRE FROM TB5026 TO PS92P2 PIN #3 IN ERROR DUE TO THE MISLEADING ILLUSTRATION IN ENGINEERING ORDER THAT SHOWS PS92P1 AS #2 IN THE BOTTOM R OF THE DIMMER (BALLAST) PS92. ON BOTH ACFT THERE WAS NO LABEL OR STATING THE PLUG (CONNECTOR) NUMBER. I DID NOT LOOK AT THE TOP PLUG (CONNECTOR) BECAUSE OF THE ILLUSTRATION. I DID THE OPERATIONAL TEST OF THE LIGHT IN ACCORDANCE WITH ENGINEERING ORDER AND IT TESTED GOOD. I WAS TALKING WITH ANOTHER MECH AND SHOWN THAT THERE WAS A LABEL ZIP TIED TO THE WIRE BUNDLE THAT GOES INTO THE TOP L OF THE DIMMER (BALLAST) PS92 THAT READS PS92P1.

Data retrieved from NASA's ASRS site as of January 2009 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.