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B717 flight crew reports low thrust and left engine EICAS warning shortly after takeoff. Emergency is declared and flight crew returns to departure airport with engine at idle.
| Attributes | |
| ACN | 747383 |
| Time | |
| Date | 200707 |
| Local Time Of Day | 0601 To 1200 |
| Place | |
| Locale Reference | airport : zzz.airport |
| State Reference | US |
| Altitude | msl single value : 1500 |
| Environment | |
| Flight Conditions | VMC |
| Light | Daylight |
| Aircraft 1 | |
| Controlling Facilities | tower : zzz.tower |
| Operator | common carrier : air carrier |
| Make Model Name | B717 |
| Operating Under FAR Part | Part 121 |
| Flight Phase | climbout : initial |
| Flight Plan | IFR |
| Person 1 | |
| Affiliation | company : air carrier |
| Function | flight crew : first officer |
| Qualification | pilot : atp |
| ASRS Report | 747383 |
| Person 2 | |
| Function | flight crew : captain oversight : pic |
| Qualification | pilot : atp |
| ASRS Report | 747384 |
| Events | |
| Anomaly | aircraft equipment problem : critical |
| Independent Detector | aircraft equipment other aircraft equipment : eicas other flight crewa |
| Resolutory Action | flight crew : declared emergency flight crew : landed in emergency condition other |
| Supplementary | |
| Problem Areas | Aircraft |
| Primary Problem | Aircraft |
Narrative:
Possible FCU failure and/or defective stator vane. During climb out noted absence of air pressurization followed by engine left system fail. We declared an emergency with intent to return to departure airport. Followed emergency procedures and opted to keep engine operating at low power instead of securing engine. Briefed single engine approach and landing procedures followed with immediate return checklist. Performed normal landing; rollout; and taxied clear of runway. Crash fire rescue equipment inspected left engine and then we taxied to gate. Callback conversation with reporter revealed the following information: maintenance readout of the fault computer indicated problems with the fuel control unit and the variable stator control.
Original NASA ASRS Text
Title: B717 FLT CREW REPORTS LOW THRUST AND LEFT ENGINE EICAS WARNING SHORTLY AFTER TKOF. EMERGENCY IS DECLARED AND FLT CREW RETURNS TO DEPARTURE ARPT WITH ENGINE AT IDLE.
Narrative: POSSIBLE FCU FAILURE AND/OR DEFECTIVE STATOR VANE. DURING CLBOUT NOTED ABSENCE OF AIR PRESSURIZATION FOLLOWED BY ENG L SYS FAIL. WE DECLARED AN EMER WITH INTENT TO RETURN TO DEP ARPT. FOLLOWED EMER PROCS AND OPTED TO KEEP ENG OPERATING AT LOW PWR INSTEAD OF SECURING ENG. BRIEFED SINGLE ENG APCH AND LNDG PROCS FOLLOWED WITH IMMEDIATE RETURN CHKLIST. PERFORMED NORMAL LNDG; ROLLOUT; AND TAXIED CLR OF RWY. CFR INSPECTED L ENG AND THEN WE TAXIED TO GATE. CALLBACK CONVERSATION WITH RPTR REVEALED THE FOLLOWING INFO: MAINTENANCE READOUT OF THE FAULT COMPUTER INDICATED PROBLEMS WITH THE FUEL CONTROL UNIT AND THE VARIABLE STATOR CONTROL.
Data retrieved from NASA's ASRS site as of January 2009 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.