SDR AALA201905129006

Service difficulty report · Warning System · Boeing 777223

Difficulty date: May 11, 2019
Submitted: May 27, 2019
Operation: Air carrier
Aircraft: N799AN
Make and model: Boeing 777223
Aircraft serial: 30258
Aircraft time: 72,399 hours, 9,150 cycles
System (JASC): 2840 · Fuel Indicating System
Part: Warning System
Condition: False Activation
Location: Cockpit
Stage of operation: DE
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

AIRCRAFT WAS GROUNDED: PILOT REPORTS DURING DESCENT EICAS MESSAGE: FUEL SCAVANGE SYS. COMPLIED WITH CHECKLIST FOLLOWED BY FUEL IMBALANCE MESSAGE AND APPROX 5000 LB IMBALANCE. GOT FUEL BALANCED TO WITHIN 3000 LBS BEFORE LANDING. ALL SYSTEMS RESET TO NORMAL AFTER LANDING. MAINTENANCE SUMPED FUEL TANKS NO EVIDENCE OF WATER. NO DEBRIS IN SCAVENGE PUMP. ***SUPPLEMENTAL INFORMATION: AFTER ACCOMPLISHMENT FIM 28-22-00-910-901 NO MNT MSG SHOWN DURING THE LAST 8 LEGS. .*** (CLOSED)