Service difficulty report · Ballast · Boeing 757222

Difficulty date
April 27, 2010
Submitted
April 28, 2010
Operation
Air carrier
Aircraft
N572UA
Make and model
Boeing 757222
Aircraft serial
26682
Aircraft time
58,376 hours, 21,379 cycles
Engine
Pwa PW2037
Part
Ballast
Part number
81841
Condition
Overheated
Location
Lavatory
Stage of operation
NR
How discovered
O
Nature of condition
M, B
Precautionary procedure
O

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

What was found

CREW REPORTS STRANGE NON ELECTRIC TYPE ODOR ONLY IN FWD LAV. FOUND MIRROR LIGHT IN FWD LAV INOP. FURTHER INVESTIGATION FOUND LAV MIRROR LIGHT BREAKER OUT ON P34 PANEL, VERIFIED ALL LAV MIRROR LIGHTS INOP. CHECKED FWD LAV, NO ODOR PRESENT. ALL AFFECTED LIGHTS COOL, DOOR SWITCH ALSO COOL TO THE TOUCH. VERIFIED ONLY MIRROR LIGHTS OFF AFFECTED BREAKER, BREAKER LT OUT FOR THIS DF ITEM DEFERRED FOR TIME & T-S. DISCONNECTED POWER WIRES FROM FWD LAV DOOR SWITCH TERMINALS 4 & 5. INSULATED AND TIED BACK WIRES. C/B FOR LAV SVC LIGHTS ON P34 NOW STAYS IN. FWD LAV MIRROR LIGHTS BALLAST OVERHEATED. REPLACED BALLAST FOR FWD LAV MIRROR LIGHTS. REINSTALLED POWER WIRES TO MIRROR LIGHTS SWITCH. LIGHTS CHECK NORMAL.