SDR CALA2013120593478

Service difficulty report · Wire · Boeing 757222

Difficulty date: November 28, 2013
Submitted: December 6, 2013
Operation: Air carrier
Aircraft: N518UA
Make and model: Boeing 757222
Aircraft serial: 24871
Aircraft time: 79,421 hours, 23,940 cycles
Engine: Pwa PW2040
System (JASC): 3697 · Pneumatic System Wiring
Part: Wire
Condition: Shorted
Location: Bleed Air Sys
Stage of operation: IN
How discovered: O
Nature of condition: J
Precautionary procedure: O

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

What was found

LT ENG BLEED LIGHT ILLUMINATED WITH ENG SHUTDOWN. REPLACED 490 DEGREE SWITCH S358 IAW AMM 36-22-01, NO HELP. TROUBLE SHOT IAW WDM 36-22-11, FOUND SHORT BETWEEN CONNECTOR D42090P & CONNECTOR D1558. NEED WIRE PN BMS13-51T30C1G18, 10 FEET. NEED TWO EACH CONTACTS PCN 561 -6494, CONT OF AMIS ITEM 4212003. IAW ABOVE WDM, FOUND WIRE W5406-1011-18 SHORTED TO SHIELD APPROXIMATELY 15 INCHES FROM CONN D1558. REPAIRED WIRE WITH ENVIRONMENTAL SPLICE IAW SWPM 20-30-12. RAN ENG IAW JRH & LT ENG BLEED CHECKED OK.