An A300-600 with the automatic fuel feed deferred per the MEL was discovered by an FAA safety inspector to have the circuit breaker not opened and safetied.

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Attributes
ACN	658390
Time
Date	200504
Place
Locale Reference	airport : zzz.airport
State Reference	US
Altitude	agl single value : 0
Aircraft 1
Operator	common carrier : air carrier
Make Model Name	A300
Operating Under FAR Part	Part 121
Flight Phase	ground : maintenance
Person 1
Affiliation	company : air carrier
Function	maintenance : technician
ASRS Report	658390
Person 2
Affiliation	government : faa
Function	observation : air carrier inspector
Events
Anomaly	aircraft equipment problem : critical maintenance problem : non compliance with mel non adherence : published procedure non adherence : far
Independent Detector	aircraft equipment other aircraft equipment : circuit breaker other other : 2
Resolutory Action	none taken : detected after the fact
Consequence	faa : investigated other other
Factors
Maintenance	performance deficiency : non compliance with legal requirements
Supplementary
Problem Areas	Aircraft Chart Or Publication Flight Crew Human Performance Maintenance Human Performance
Primary Problem	Maintenance Human Performance
Situations
Publication	MEL Manual

Narrative:

On apr/thu/05; I placarded the automatic fuel feed (MEL 28-10) on aircraft X. I received a letter of investigation from the FAA regarding this incident. The letter states; 'the circuit breaker was not opened and safetied.' from the time I placarded the automatic fuel feed and the inspection of the aircraft by the FAA; 8 days had transpired and 22 legs were flown. If you reference PIREP xx; you'll note the circuit breaker in question was pulled by the inbound flight crew. I have performed the compliance of this MEL countless times without error; and I am sure I was fully compliant with MEL 28-10 on apr/thu/05. I believe the circuit breaker was set during routine troubleshooting on any of the 6 overnight checks the aircraft had between apr/thu and apr/fri.

Original NASA ASRS Text

Title: AN A300-600 WITH THE AUTO FUEL FEED DEFERRED PER THE MEL WAS DISCOVERED BY AN FAA SAFETY INSPECTOR TO HAVE THE CIRCUIT BREAKER NOT OPENED AND SAFETIED.

Narrative: ON APR/THU/05; I PLACARDED THE AUTO FUEL FEED (MEL 28-10) ON ACFT X. I RECEIVED A LETTER OF INVESTIGATION FROM THE FAA REGARDING THIS INCIDENT. THE LETTER STATES; 'THE CIRCUIT BREAKER WAS NOT OPENED AND SAFETIED.' FROM THE TIME I PLACARDED THE AUTO FUEL FEED AND THE INSPECTION OF THE ACFT BY THE FAA; 8 DAYS HAD TRANSPIRED AND 22 LEGS WERE FLOWN. IF YOU REF PIREP XX; YOU'LL NOTE THE CIRCUIT BREAKER IN QUESTION WAS PULLED BY THE INBOUND FLT CREW. I HAVE PERFORMED THE COMPLIANCE OF THIS MEL COUNTLESS TIMES WITHOUT ERROR; AND I AM SURE I WAS FULLY COMPLIANT WITH MEL 28-10 ON APR/THU/05. I BELIEVE THE CIRCUIT BREAKER WAS SET DURING ROUTINE TROUBLESHOOTING ON ANY OF THE 6 OVERNIGHT CHKS THE ACFT HAD BTWN APR/THU AND APR/FRI.

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.