SDR ASAA2015072412571

Service difficulty report · Indication Sys · Boeing 737990ER

Difficulty date: July 24, 2015
Submitted: July 28, 2015
Operation: Air carrier
Aircraft: N419AS
Make and model: Boeing 737990ER
Aircraft serial: 41734
Aircraft time: 9,204 hours, 2,984 cycles
System (JASC): 2840 · Fuel Indicating System
Part: Indication Sys
Condition: Malfunctioned
Location: Fuel
Stage of operation: CL
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

DEPARTED WITH 37,000 LBS OF FUEL, WITH ALL FUEL PUMPS ON. DURING CLIMB FUEL IMBALANCE ILLUMINATED WITH APPROXIMATELY 7,500 LBS IN NR 1 TANK, NR 2 TANK FULL, AND CENTER TANK LESS THAN 17,000 LBS. RAN QRH. ACFT GROUNDED. VERBAL FROM FLIGHT CREW AFTER REBALANCE, RETURNED ALL PUMP SWITCHES TO "ON" NO FURTHER IMBALANCE NOTED. PERFORMED ENGINE FUEL FEED PUMPS, FUNCTIONAL TEST REF AMM 28-22-00-730-801. NO DEFECTS NOTED. GROUND FUNCTIONAL CHECK SUCCESSFUL.