SDR CALA2017091603213

Service difficulty report · Switch · Boeing 767322

Difficulty date: September 16, 2017
Submitted: September 18, 2017
Operation: Air carrier
Aircraft: N660UA
Make and model: Boeing 767322
Aircraft serial: 27115
Aircraft time: 100,350 hours, 15,669 cycles
System (JASC): 2400 · Electrical Power System
Part: Switch
Condition: Failed
Location: Cockpit
Stage of operation: DE
How discovered: O
Nature of condition: B
Precautionary procedure: O

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

What was found

WHILE APPLYING POWER, A STRONG ELECTRICAL ODOR WAS COMING FROM FLT DECK OVERHEAD PANEL. FOUND THE RUNWAY TURNOFF SWITCH S1 TO BE BURNED AND HAVE POST LOOSE, REMOVED AND REPLACED THE SWITCH IAW WDM 33-42-21 , OPS CHECKED GOOD IAW AMM 32-42-00. BURNED ODOR NO LONGER PRESENT IN COCKPIT.