During a center fuel tank boost pump modification on a B757; it was discovered an improper electrical connector was installed. Job card changed to prevent repeating error.

Home

Browse by month

Random

Latest

About

Contact

Attributes
ACN	708666
Time
Date	200608
Local Time Of Day	0601 To 1200
Place
Locale Reference	airport : zzz.airport
State Reference	US
Altitude	agl single value : 0
Environment
Flight Conditions	IMC
Light	Daylight
Aircraft 1
Operator	common carrier : air carrier
Make Model Name	B757 Undifferentiated or Other Model
Operating Under FAR Part	Part 121
Flight Phase	ground : maintenance
Flight Plan	IFR
Person 1
Affiliation	company : air carrier
Function	maintenance : technician
Qualification	technician : airframe technician : powerplant
ASRS Report	708666
Person 2
Affiliation	company : air carrier
Function	maintenance : inspector
Events
Anomaly	aircraft equipment problem : critical maintenance problem : improper documentation maintenance problem : improper maintenance non adherence : far non adherence : published procedure
Independent Detector	other other : 2
Resolutory Action	none taken : detected after the fact
Consequence	other
Factors
Maintenance	contributing factor : schedule pressure contributing factor : work cards performance deficiency : inspection performance deficiency : scheduled maintenance performance deficiency : non compliance with legal requirements performance deficiency : installation
Supplementary
Problem Areas	Aircraft Chart Or Publication Maintenance Human Performance
Primary Problem	Maintenance Human Performance

Narrative:

On aug/xa/06 I was assigned to work on aircraft X to help with the center automatic fuel boost pump shutoff modification. I am an a&P; not an right&east. Very little instruction was given. Work was done with reference to the available work package. Inadvertently a pin connector was installed where a receptacle should have been installed. The same problem has been discovered on other aircraft as well. I have been informed that a 'caution' has been added to the work package at the step for the receptacle installation to help clarify this part of the modification.

Original NASA ASRS Text

Title: DURING A CTR FUEL TANK BOOST PUMP MODIFICATION ON A B757; IT WAS DISCOVERED AN IMPROPER ELECTRICAL CONNECTOR WAS INSTALLED. JOB CARD CHANGED TO PREVENT REPEATING ERROR.

Narrative: ON AUG/XA/06 I WAS ASSIGNED TO WORK ON ACFT X TO HELP WITH THE CTR AUTOMATIC FUEL BOOST PUMP SHUTOFF MODIFICATION. I AM AN A&P; NOT AN R&E. VERY LITTLE INSTRUCTION WAS GIVEN. WORK WAS DONE WITH REF TO THE AVAILABLE WORK PACKAGE. INADVERTENTLY A PIN CONNECTOR WAS INSTALLED WHERE A RECEPTACLE SHOULD HAVE BEEN INSTALLED. THE SAME PROB HAS BEEN DISCOVERED ON OTHER ACFT AS WELL. I HAVE BEEN INFORMED THAT A 'CAUTION' HAS BEEN ADDED TO THE WORK PACKAGE AT THE STEP FOR THE RECEPTACLE INSTALLATION TO HELP CLARIFY THIS PART OF THE MODIFICATION.

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.