SDR EVCA201803211

Service difficulty report · Drain Line · Snias AS350B2

Difficulty date: March 21, 2018
Submitted: March 23, 2018
Operation: Air carrier
Aircraft: N451AE
Make and model: Snias AS350B2
Aircraft serial: 9042
Aircraft time: 8,829 hours, 24,661 cycles
System (JASC): 3100 · Indicating/Recording System
Part: Drain Line
Condition: Clogged
Stage of operation: CR
How discovered: O
Nature of condition: B, I
Precautionary procedure: A

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

What was found

DURING CRUISE FLIGHT, PILOT NOTED SMOKE FROM BEHIND THE INSTRUMENT PANEL, ODOR OF BURNED RUBBER, AND THE GTN-650 WAS FLASHING. DURING MAINTENANCE INSPECTION, FOUND A VENT AREA DRAIN LINE CLOGGED WHICH CAUSED WATER TO BUILDUP IN THE VENT AREA. WIRING WAS INSPECTED, THE GTN-650 WAS INSPECTED AND NO MOISTURE OR WIRING DEFECTS IN THOSE AREAS WAS NOTED. PERFORMED A 15 MINUTE GROUND RUN AND OPS CHECK OF SYSTEMS WITH NO FURTHER DEFECTS NOTED.