Service difficulty report · Clamp · Boeing 777222

Difficulty date
May 17, 2013
Submitted
May 31, 2013
Operation
Air carrier
Aircraft
N223UA
Make and model
Boeing 777222
Aircraft serial
30224
Aircraft time
50,511 hours, 6,084 cycles
Engine
Pwa PW4090
Part
Clamp
Condition
Damaged
Location
Wire Harness
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

FOUND RT ENGINE CORE WIRE HARNESS, W0623 AND W0628, DAMAGED NEAR 12 STAGE BLEED DUCT. DAMAGE DUE TO EXCESSIVE HEAT AND CHAFING OF HARNESS DUE TO LOOSE CLAMPS. REMOVED WIRE HARNESS W0623 AND W0628. REPLACED DAMAGED CLAMPS. REPLACED W0623 AND W0628 WIRE HARNESS, REF. MM. MADE SMC FOR ENGINE RUN OF RT ENGINE. REF. DF709 REPLACED NR 2 BUG IAW MM24-25-01-401, DURING OPS CHECK NR 2 BUG WILL NOT COME ON LINE. MSG 24-47050, BUG INSTALLED MR24102-262, REMOVED MR24102-146. FOUND CORE WIRE HARNESS W0623, CONNECTOR D71070P NOT MATING COMPLETELY WITH D71070J. REMOVED CONNECTOR AND RESECURED. OPS CK NR 2 BUG REF. AMM, ALL OPS NORMAL. REF. DF709, T-S INFO FOR "ELEC BACKUP SYS A FAILURE FOR NR 2 ENGINE".