Service difficulty report · Switch · Snias AS350B2

Difficulty date
April 24, 2018
Submitted
April 26, 2018
Operation
Air carrier
Aircraft
N572AM
Make and model
Snias AS350B2
Aircraft serial
4481
Aircraft time
2,872 hours, 8,857 cycles
Part
Switch
Part number
HM01939011
Condition
Clogged
Location
Fuel System
Stage of operation
TX
How discovered
O
Nature of condition
J
Precautionary procedure
O

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

What was found

THE LOW LEVEL WARNING LIGHT STAYED ON AFTER DRAINING AND REFUELING (FOR DEBRIS FOUND IN FUEL SAMPLE DRAIN VALVE CAUSING A LEAK).WE REFUELED THE TANK WITH A KNOWN QUANTITY OF 100+ GALLONS AND THE LOW LEVEL WARNING LIGHT DID NOT GO OUT ON THE CAUTION ADVISORY PANEL. THROUGH TROUBLESHOOTING IT HAS BEEN DETERMINED THE LOW LEVEL FLOAT SWITCH IS EITHER CLOGGED AND STUCK OR FAULTY. ** NOTE: THIS IS IN REFERENCE TO A NEW INSTALLATION OF THE CFRS (CRASH RESISTANCE FUEL SYSTEM) INSTALLATION. **