A B727-200 was dispatched in non compliance with the #1 fuel quantity indicator connector and the #2 fuel quantity indicator connector swapped behind the indicators on the flight engineer's panel.

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Attributes
ACN	492620
Time
Date	200011
Day	Sun
Local Time Of Day	1201 To 1800
Place
Locale Reference	airport : zzz.airport
State Reference	US
Altitude	agl single value : 0
Environment
Light	Daylight
Aircraft 1
Operator	common carrier : air carrier
Make Model Name	B727-200
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 : 14
ASRS Report	492620
Person 2
Affiliation	company : air carrier
Function	flight crew : captain oversight : pic
Qualification	pilot : atp
Events
Anomaly	aircraft equipment problem : critical maintenance problem : improper maintenance maintenance problem : improper documentation non adherence : far non adherence : published procedure non adherence : company policies
Independent Detector	other other : person 4
Resolutory Action	flight crew : overcame equipment problem none taken : detected after the fact
Consequence	other other
Factors
Maintenance	contributing factor : schedule pressure performance deficiency : logbook entry performance deficiency : inspection performance deficiency : fault isolation performance deficiency : repair performance deficiency : testing
Supplementary
Problem Areas	Aircraft Environmental Factor Maintenance Human Performance
Primary Problem	Maintenance Human Performance

Narrative:

While troubleshooting a wiring problem in the fuel quantity system of aircraft xyz, I inadvertently swapped the electrical connectors on the #1 and #2 tanks fuel quantity indicators at the flight engineer's station. The connectors were not clearly marked, thus the mix-up. While in-flight, the problem was discovered and corrected upon arrival in XXX. The fuel quantity system now operates normally. If I had removed the electrical connectors one at a time, there wouldn't have been the mix-up.

Original NASA ASRS Text

Title: A B727-200 WAS DISPATCHED IN NON COMPLIANCE WITH THE #1 FUEL QUANTITY INDICATOR CONNECTOR AND THE #2 FUEL QUANTITY INDICATOR CONNECTOR SWAPPED BEHIND THE INDICATORS ON THE FE'S PANEL.

Narrative: WHILE TROUBLESHOOTING A WIRING PROB IN THE FUEL QUANTITY SYS OF ACFT XYZ, I INADVERTENTLY SWAPPED THE ELECTRICAL CONNECTORS ON THE #1 AND #2 TANKS FUEL QUANTITY INDICATORS AT THE FE'S STATION. THE CONNECTORS WERE NOT CLRLY MARKED, THUS THE MIX-UP. WHILE INFLT, THE PROB WAS DISCOVERED AND CORRECTED UPON ARR IN XXX. THE FUEL QUANTITY SYS NOW OPERATES NORMALLY. IF I HAD REMOVED THE ELECTRICAL CONNECTORS ONE AT A TIME, THERE WOULDN'T HAVE BEEN THE MIX-UP.

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.