SDR ASAA2015072312577

Service difficulty report · Unknown · Boeing 737890

Difficulty date: July 23, 2015
Submitted: July 28, 2015
Operation: Air carrier
Aircraft: N597AS
Make and model: Boeing 737890
Aircraft serial: 35689
Aircraft time: 27,879 hours, 8,615 cycles
Engine: Cfmint CFM567B27
System (JASC): 7300 · Engine Fuel and Control
Part: Unknown
Condition: Warning Light
Location: Nr 1 Engine
Part time: 3,620 hours, 1,066 cycles
Stage of operation: IN
How discovered: 9
Nature of condition: N
Precautionary procedure: K

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

What was found

WHILE ACCOMPLISHING T/C 78273000, FOUND NR 1 ENGINE LONG TIME FAULT 73-31071, FUEL FILTER SIGNALS DISAGREE. ACFT GROUNDED. TSR ISSUED. REPLACED NR 1 ENGINE FUEL FILTER DIFFERENTIAL PRESSURE SWITCH. LEAK AND OPS CHECK NORMAL, REF AMM 73-34-01, 73-21-00, 71-00-00.