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A B737-700 number one engine rolled back to 65% N1 while flying at FL400 over a tropical storm with ice forming on the windshield at -55C. After the igniters were selected to flight and the engine anti-ice turned on; the engine recovered in about 30 seconds.
| Attributes | |
| ACN | 1092594 |
| Time | |
| Date | 201306 |
| Local Time Of Day | 0601-1200 |
| Place | |
| Locale Reference | ZZZ.ARTCC |
| State Reference | US |
| Environment | |
| Flight Conditions | IMC |
| Light | Daylight |
| Aircraft 1 | |
| Make Model Name | B737-700 |
| Operating Under FAR Part | Part 121 |
| Flight Phase | Cruise |
| Flight Plan | IFR |
| Component | |
| Aircraft Component | Turbine Engine |
| Person 1 | |
| Function | First Officer |
| Experience | Flight Crew Last 90 Days 49 Flight Crew Type 3000 |
| Person 2 | |
| Function | Captain |
| Experience | Flight Crew Last 90 Days 151 |
| Events | |
| Anomaly | Aircraft Equipment Problem Critical Inflight Event / Encounter Weather / Turbulence |
Narrative:
Flying at 40;000 ft passing over an outer band of weather from a tropical storm; the number one engine had a rollback to approximately 65% N1. We were IMC at -55 sat. Turned engine ignition and engine anti-ice on and engine returned to normal operation in about one minute.
Original NASA ASRS Text
Title: A B737-700 Number One Engine rolled back to 65% N1 while flying at FL400 over a tropical storm with ice forming on the windshield at -55C. After the igniters were selected to FLT and the engine anti-ice turned ON; the engine recovered in about 30 seconds.
Narrative: Flying at 40;000 FT passing over an outer band of weather from a tropical storm; the Number One Engine had a rollback to approximately 65% N1. We were IMC at -55 SAT. Turned engine ignition and engine anti-ice on and engine returned to normal operation in about one minute.
Data retrieved from NASA's ASRS site as of July 2013 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.