SDR ASAA2016031515942

Service difficulty report · Warning Light · Boeing 737990ER

Difficulty date: March 15, 2016
Submitted: March 17, 2016
Operation: Air carrier
Aircraft: N453AS
Make and model: Boeing 737990ER
Aircraft serial: 36354
Aircraft time: 8,692 hours, 2,830 cycles
System (JASC): 3040 · Windshield/Door Rain/Ice Removal
Part: Warning Light
Condition: False Activation
Location: Window Heat
Stage of operation: NR
How discovered: O
Nature of condition: N
Precautionary procedure: O

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

What was found

LEFT FWD WINDOW HEAT "OVERHEAT" LIGHT ILLUMINATES STEADY WHEN SELECTED ON. ACFT GROUNDED. VERIFIED DISCREPANCY, INSPECTED AND FOUND LT FWD CB OPEN AT P6-4 PANEL. OPENED PANEL AND INSPECTED WIRING, NO FAULTS FOUND. CLOSED PANEL AND CLOSED CB, REF AMM 20-60-01. PERFORMED LT FWD WINDOW OPS TEST, REF AMM 30-41-00. SYSTEM CHECKS NORMAL.