SDR AALA2018060528005

Service difficulty report · Pressure Switch · Boeing 737823

Difficulty date: May 27, 2018
Submitted: June 5, 2018
Operation: Air carrier
Aircraft: N991AN
Make and model: Boeing 737823
Aircraft serial: 30920
Aircraft time: 28,672 hours, 11,352 cycles
Engine: Cfmint CFM567B27
Engine time: 28,681 hours, 11,357 cycles
System (JASC): 7310 · Engine Fuel Distribution
Part: Pressure Switch
Part number: 4246249
Condition: Failed
Location: Rt Engine Fuel
Stage of operation: CL
How discovered: V
Nature of condition: J
Precautionary procedure: A

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

What was found

FUEL FILTER BYPASS LIGHT, RIGHT ENGINE, DURING CLIMBOUT, CAME ON TWICE AND STAYED ON THRU LANDING. EMERGENCY WAS DECLARED, FLIGHT LANDED WITHOUT FURTHER INCIDENT. MAINTENANCE REPLACED RIGHT ENGINE FUEL DIFFERENTIAL PRESSURE SWITCH IAW AMM 73-34-01 AND PERFORMED SATISFACTORY OPERATIONAL CHECK, NO LEAKS NOTED. AIRCRAFT WAS GROUNDED