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B737-800 first officer reported that after an abnormal inflight fuel burn the mechanic on the ground at the gate noticed a visible fuel leak.
| Attributes | |
| ACN | 1326564 |
| Time | |
| Date | 201601 |
| Local Time Of Day | 0001-0600 |
| Place | |
| Locale Reference | ZZZ.ARTCC |
| State Reference | US |
| Aircraft 1 | |
| Make Model Name | B737-800 |
| Operating Under FAR Part | Part 121 |
| Flight Phase | Cruise |
| Flight Plan | IFR |
| Component | |
| Aircraft Component | Turbine Engine |
| Person 1 | |
| Function | First Officer Pilot Flying |
| Qualification | Flight Crew Air Transport Pilot (ATP) |
| Events | |
| Anomaly | Aircraft Equipment Problem Critical Inflight Event / Encounter Fuel Issue |
Narrative:
Shortly after reaching our cruising altitude; the captain noticed an imbalance between the main tanks and he corrected the situation. About 30 minutes later; we noticed we were using more fuel out of main tank 1; creating an imbalance between the main tanks again. When we rechecked the fuel burn; we noticed we over-burned our fuel by 800-1;000 pounds. The captain (pm) contacted maintenance and the flight operations duty officer (fodo) to determine if our issue was due to faulty gauges or an actual fuel leak. We could not confirm the actual fuel leak and we all agreed it was the best option to continue on to our destination with [nearby airports] as alternates. We landed uneventfully with 5;300 pounds of fuel. When we taxied onto the gate; one of our mechanics signaled us to shut the engines. The mechanic informed us there was a visible fuel leak from the number one engine. We deplaned without incident and later continued on in a new aircraft.
Original NASA ASRS Text
Title: B737-800 FO reported that after an abnormal inflight fuel burn the Mechanic on the ground at the gate noticed a visible fuel leak.
Narrative: Shortly after reaching our cruising altitude; the Captain noticed an imbalance between the main tanks and he corrected the situation. About 30 minutes later; we noticed we were using more fuel out of main tank 1; creating an imbalance between the main tanks again. When we rechecked the fuel burn; we noticed we over-burned our fuel by 800-1;000 LBS. The captain (PM) contacted Maintenance and the Flight Operations Duty Officer (FODO) to determine if our issue was due to faulty gauges or an actual fuel leak. We could not confirm the actual fuel leak and we all agreed it was the best option to continue on to our destination with [nearby airports] as alternates. We landed uneventfully with 5;300 LBS of fuel. When we taxied onto the gate; one of our mechanics signaled us to shut the engines. The mechanic informed us there was a visible fuel leak from the number one engine. We deplaned without incident and later continued on in a new aircraft.
Data retrieved from NASA's ASRS site and automatically converted to unabbreviated mixed upper/lowercase text. This report is for informational purposes with no guarantee of accuracy. See NASA's ASRS site for official report.