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G1159 flight crew reported the #2 engine rolled back in cruise flight at FL400. Engine relight was successful after descent; and after landing about a cup of water was found after draining a few gallons from the right fuel tank.
| Attributes | |
| ACN | 1473130 |
| Time | |
| Date | 201708 |
| Local Time Of Day | 1801-2400 |
| Place | |
| Locale Reference | ZZZ.ARTCC |
| State Reference | US |
| Environment | |
| Flight Conditions | VMC |
| Light | Night |
| Aircraft 1 | |
| Make Model Name | Gulfstream II (G1159) |
| Operating Under FAR Part | Part 91 |
| Flight Phase | Cruise |
| Route In Use | Direct |
| Flight Plan | IFR |
| Component | |
| Aircraft Component | Turbine Engine |
| Person 1 | |
| Function | Captain Pilot Flying |
| Qualification | Flight Crew Multiengine Flight Crew Flight Instructor Flight Crew Instrument Flight Crew Air Transport Pilot (ATP) |
| Experience | Flight Crew Last 90 Days 21 Flight Crew Total 20000 Flight Crew Type 5500 |
| Person 2 | |
| Function | Pilot Not Flying First Officer |
| Qualification | Flight Crew Flight Instructor Flight Crew Commercial Flight Crew Multiengine Flight Crew Instrument |
| Experience | Flight Crew Last 90 Days 20 Flight Crew Total 2020 Flight Crew Type 10 |
| Events | |
| Anomaly | Aircraft Equipment Problem Critical Inflight Event / Encounter Fuel Issue |
Narrative:
We were cruising at FL400 when right engine rolled back. Turned on ignition; engine would not re-light; [advised ATC]. Requested descent to FL300. Donned oxygen mask. Engine restarted about FL310; leveled at FL300. Requested a nearby airport for landing. Next day; drained several times some fuel from each wing tank sumps about 1-2 gallons each to find about a cup of water in the right fuel tank. No water was further found. Restarted both engine to find all is normal. Mechanic's belief is [the] water interrupted the fuel to the engine to cause a rollback.
Original NASA ASRS Text
Title: G1159 flight crew reported the #2 engine rolled back in cruise flight at FL400. Engine relight was successful after descent; and after landing about a cup of water was found after draining a few gallons from the right fuel tank.
Narrative: We were cruising at FL400 when right engine rolled back. Turned ON ignition; engine would not re-light; [advised ATC]. Requested descent to FL300. Donned oxygen mask. Engine restarted about FL310; leveled at FL300. Requested a nearby airport for landing. Next day; drained several times some fuel from each wing tank sumps about 1-2 gallons each to find about a cup of water in the right fuel tank. No water was further found. Restarted both engine to find all is normal. Mechanic's belief is [the] water interrupted the fuel to the engine to cause a rollback.
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.