A DC9-30 WAS DISPATCHED IN NON COMPLIANCE WITH THE ACFT REPAIRED AND CERTIFIED IN CAT II STATUS BY AN UNQUALIFIED TECHNICIAN.

Narrative

ON MAR/XA/99; AT ABOUT XY30; I WAS CALLED TO ACFT XYZ TO INVESTIGATE A PLT WRITE-UP INVOLVING THE #2 VHF NAV SYS. THE DISCREPANCY WAS REMEDIED BY REPLACING THE #2 NAV RECEIVER. I FUNCTIONAL CHKED THE SYS IN ACCORDANCE WITH THE JOB CARD (CAT II FUNCTION CHK) AND MADE A LOGBOOK ENTRY STATING THE ACFT WAS CERTIFIED TO CAT II STATUS. THE ACFT SUBSEQUENTLY DEPARTED. SOON AFTER; IT OCCURRED TO ME THAT I WAS NOT CURRENTLY CAT II QUALIFIED ON DC9-30 ACFT; AND SINCE A CAT II COMPONENT HAD BEEN REPLACED; I WAS NOT AUTH TO MAKE SUCH A CERTIFICATION. I IMMEDIATELY NOTIFIED THE DC9 MAINT CTLR IN WZY OF MY ERROR; AND WE AGREED THAT MAINT IN YXZ (THE DOWNLINE STATION) WOULD DECERTIFY THE CAT II STATUS OF THE ACFT UPON ITS ARR. A FEW HRS LATER; I CHKED THE COMPUTERIZED MAINT HISTORY FOR THE ACFT TO CONFIRM THAT THIS HAD BEEN DONE; AND IT HAD BEEN. I HAD RETURNED TO WORK (ON 3RD SHIFT) ON THE PREVIOUS EVENING AFTER 4 DAYS OFF; DURING WHICH TIME I HAD TRAVELED. THE OPPORTUNITY FOR 1ST SHIFT OVERTIME HAD ARISEN; AND I ACCEPTED. THE INCIDENT OCCURRED DURING 1ST SHIFT; AFTER I HAD BEEN WORKING FOR OVER 11 HRS; SO I WAS BEGINNING TO FEEL FATIGUED. THE WX WAS ALSO POOR; WITH SNOW AND FREEZING RAIN. THE ACFT HAD ARRIVED BEHIND SCHEDULE; AND WITH MANY FLTS ALREADY CANCELED; I FELT UNDER PRESSURE TO REPAIR AND RELEASE THE ACFT AS QUICKLY AS POSSIBLE (THERE WAS NO OVERT PRESSURE PUT ON ME BY ANYONE OTHER THAN MYSELF.