SDR UALA2012021700964

Service difficulty report · Wire · Boeing 757222

Difficulty date: February 16, 2012
Submitted: March 12, 2012
Operation: Air carrier
Aircraft: N550UA
Make and model: Boeing 757222
Aircraft serial: 25398
Aircraft time: 76,277 hours, 22,138 cycles
Engine: Pwa PW2037
System (JASC): 2997 · Hydraulic Power System Wiring
Part: Wire
Condition: Broken
Location: Hydraulic Sys
Stage of operation: NR
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

POWER XFER UNIT MSG. WHILE LT ENG IS RUNNING PTU VLV DOES NOT SHUT. REF SYS SCHEMATIC 29-00-05. FOUND 3 BROKEN WIRES, PINS 1, 3, & 4 ON CONNECTOR D6240 FOR LT ENG HYD PRESS SWITCH. REPLACED CONNECTOR REF WDM29-22-11 PG 1. STILL NEEDS OPS CHECK. ACP OPS CHECK PER MM. CKS OKAY, RUN BOTH ENGINES, CHECKS OKAY.