An MD80 was dispatched in non compliance with the APU deferred per the MEL but the special procedure to lock the control circuit breaker was not accomplished.

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Attributes
ACN	473229
Time
Date	200005
Day	Tue
Local Time Of Day	0601 To 1200
Place
Locale Reference	airport : zzz.airport
State Reference	FO
Altitude	agl single value : 0
Environment
Light	Daylight
Aircraft 1
Operator	common carrier : air carrier
Make Model Name	MD-80 Series (DC-9-80) Undifferentiated or Other Model
Operating Under FAR Part	Part 121
Flight Phase	ground : maintenance ground : parked
Flight Plan	IFR
Person 1
Affiliation	company : air carrier
Function	maintenance : technician
Qualification	technician : powerplant technician : airframe
Experience	maintenance technician : 19
ASRS Report	473229
Person 2
Affiliation	company : air carrier
Function	flight crew : captain oversight : pic
Qualification	pilot : atp
Events
Anomaly	aircraft equipment problem : less severe maintenance problem : non compliance with mel non adherence : published procedure non adherence : far
Independent Detector	other other : 969
Consequence	other
Factors
Maintenance	contributing factor : manuals contributing factor : schedule pressure performance deficiency : logbook entry performance deficiency : non compliance with legal requirements
Supplementary
Problem Areas	Maintenance Human Performance Chart Or Publication Aircraft
Primary Problem	Maintenance Human Performance

Narrative:

Reference deferred action that I performed. I want to state that I checked the MEL and visually verified that the air inlet doors were closed, and installed the placards for the APU inoperative. I also was aware of circuit breaker collar to be installed and I went to the hangar to pick up, but I forgot to install it and have no excuses about it. I want to inform that this is my first time in 19 yrs of airlines experience that I have had this kind of mistake and I will do all necessary to avoid its repetition.

Original NASA ASRS Text

Title: AN MD80 WAS DISPATCHED IN NON COMPLIANCE WITH THE APU DEFERRED PER THE MEL BUT THE SPECIAL PROC TO LOCK THE CTL CIRCUIT BREAKER WAS NOT ACCOMPLISHED.

Narrative: REF DEFERRED ACTION THAT I PERFORMED. I WANT TO STATE THAT I CHKED THE MEL AND VISUALLY VERIFIED THAT THE AIR INLET DOORS WERE CLOSED, AND INSTALLED THE PLACARDS FOR THE APU INOP. I ALSO WAS AWARE OF CIRCUIT BREAKER COLLAR TO BE INSTALLED AND I WENT TO THE HANGAR TO PICK UP, BUT I FORGOT TO INSTALL IT AND HAVE NO EXCUSES ABOUT IT. I WANT TO INFORM THAT THIS IS MY FIRST TIME IN 19 YRS OF AIRLINES EXPERIENCE THAT I HAVE HAD THIS KIND OF MISTAKE AND I WILL DO ALL NECESSARY TO AVOID ITS REPETITION.

Data retrieved from NASA's ASRS site as of July 2007 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.