Service difficulty report · Wire · Boeing 777333ER

Difficulty date
June 4, 2019
Submitted
August 17, 2020
Operation
General aviation
Make and model
Boeing 777333ER
Aircraft time
52,225 hours
Engine
Ge GE90115B
Part
Wire
Condition
Burned
Location
Landing Light
Stage of operation
NR
How discovered
9
Nature of condition
O
Precautionary procedure
O

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

What was found

(CAN) AT START OF SHIFT RECEIVED INFORMATION ABOUT DAMAGE FOUND TO R/H LANDING LIGHT AREA, NO RECORD IN TRAX, OR ON SHIFT HANDOVER PAPERWORK. UPON INSPECTION, FOUND LENS COVER AND LAMP REMOVED AND A VERY STRONG ODOR COMING FROM LANDING LIGHT LAMP COMPARTMENT. INSIDE COMPARTMENT FOUND THE WIRES THAT ATTACHED LANDING LIGHT BLACK AND LUGS DAMAGED/BURNT. FOUND EVIDENCE OF SMOKE AND POSSIBLY AN ELECTRICAL FIRE INSIDE. FURTHER INSIDE THE COMPARTMENT FOUND WIRES COMPLETELY BURNT OFF AT FRAME FEED THRU AND VERY SHARP BROKEN GLASS IN CLOSE VICINITY. ALSO NO EVIDENCE OR RECORD OF CIRCUIT BREAKERS OPENING TO PROTECT THE CIRCUIT. (TC# 20190812018)