Service difficulty report · Wire · Mtsbsi MU300

Difficulty date
February 10, 2006
Submitted
July 20, 2006
Operation
General aviation
Aircraft
N109PW
Make and model
Mtsbsi MU300
Aircraft serial
AO46SA
Engine
Pwa JT15D4
Part
Wire
Condition
Burned
Stage of operation
IN
How discovered
V
Nature of condition
O
Precautionary procedure
K

As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.

What was found

SHORT CIRCUIT, WIRES BURNED ON LT CNTRL JUNCT BOX AREA. DURING SCHEDULED B INSP IAW MM, FOUND WIRES BURNED, DAMAGED ON CABLE LOOM CONNECTOR P AND J 230. DUE TO SHORT CIRCUIT ON TRIPLE WIRES, INSULATION OF SHIELD TERM SUSPECT ON CABLES LOOM CONNECTORS. SB MUST BE APPLIED WHICH MODIFIES SHIELDS GROUND TERM RELOCATION. ALL WIRES AT EFFECTED CONNECTORS TO BE IDENTIFIED, CIRCUITS CHECKED IAW AC WIRING DIAGRAM, CHECKED FOR CONTINUITY, INSULATION RESIST CHECKS ON ALL WIRES NOT ONLY TO DETERMINE IF ANY OF SCREENED CABLES ARE BREAKING DOWN BUT ALSO NOT BREAKING DOWN TO ADJACENT CABLES FURTHER DOWN WIRING LOOM IN AREAS THAT CAN NOT BE VISUALLY INSP DAMAGED WIRES REPAIRED, CONNECTORS REPLACED IAW MM.