A maintenance technician is concerned that a company document is being exploited or misinterpreted; ...

Narrative:

[Company] boeing 757 aircraft are in service with inappropriate repair of the standoff tray on top of the landing gear trucks. The [company document] allows the tray to be secured in place by using plastic zip ties in a high vibration; high heat area. Due to the vibration; the plates migrate aft causing the wire harness conduit to slip out of the junction box which in turn causes chafing against the sharp edges of the conduit and junction box. We as avionics technicians have replaced many harnesses due to antiskid/autobrake failures due to wires shorting or being cut/damaged. The [company document] allows this temporary repair until there is wire damage discovered at which time a permanent repair is required. Apparently there is a misinterpretation of the [company document] by some senior members of the maintenance department who feel that the permanent repairs are not applicable once the wires harness is replaced with new wires and the aircraft is released to airworthy condition with plastic zip ties securing the plates. These zip ties secure the plates for 1 or 2 landings at best then the plates migrate aft causing damage to the wires in the same location. I am concerned for the airworthiness and safety of the aircraft and our passengers. Management knows about this issue and mechanics have been [clearing write-ups with this company document].

Original NASA ASRS Text

Title: A Maintenance Technician is concerned that a company document is being exploited or misinterpreted; thus allowing continued operation without completion of a permanent repair.

Narrative: [Company] Boeing 757 aircraft are in service with inappropriate repair of the standoff tray on top of the landing gear trucks. The [company document] allows the tray to be secured in place by using plastic zip ties in a high vibration; high heat area. Due to the vibration; the plates migrate aft causing the wire harness conduit to slip out of the junction box which in turn causes chafing against the sharp edges of the conduit and junction box. We as avionics technicians have replaced many harnesses due to antiskid/autobrake failures due to wires shorting or being cut/damaged. The [company document] allows this temporary repair until there is wire damage discovered at which time a permanent repair is required. Apparently there is a misinterpretation of the [company document] by some senior members of the Maintenance Department who feel that the permanent repairs are not applicable once the wires harness is replaced with new wires and the aircraft is released to airworthy condition with plastic zip ties securing the plates. These zip ties secure the plates for 1 or 2 landings at best then the plates migrate aft causing damage to the wires in the same location. I am concerned for the airworthiness and safety of the aircraft and our passengers. Management knows about this issue and mechanics have been [clearing write-ups with this company document].

Data retrieved from NASA's ASRS site as of July 2013 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.

Attributes
ACN	1122132
Time
Date	201310
Local Time Of Day	0601-1200
Aircraft 1
Make Model Name	B757 Undifferentiated or Other Model
Operating Under FAR Part	Part 121
Flight Phase	Parked
Flight Plan	IFR
Component
Aircraft Component	Electrical Wiring & Connectors
Person 1
Function	Technician
Events
Anomaly	Aircraft Equipment Problem Less Severe Deviation - Procedural Published Material / Policy

A maintenance technician is concerned that a company document is being exploited or misinterpreted; thus allowing continued operation without completion of a permanent repair.