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B757 first officer experiences a left hydraulic engine pump EICAS message during descent; followed by a left hydraulic qty EICAS message when flaps 1 is selected. The approach is continued and when flaps 30 is selected; a te flap asym EICAS and a rudder ratio EICAS message appear. After landing the nosewheel steering is discovered to be inoperative and the aircraft is towed to the gate.
| Attributes | |
| ACN | 1203748 |
| Time | |
| Date | 201409 |
| Local Time Of Day | 0001-0600 |
| Place | |
| Locale Reference | ZZZ.Airport |
| State Reference | US |
| Environment | |
| Flight Conditions | VMC |
| Aircraft 1 | |
| Make Model Name | B757-200 |
| Operating Under FAR Part | Part 121 |
| Flight Phase | Initial Approach |
| Flight Plan | IFR |
| Component | |
| Aircraft Component | Hydraulic System Lines Connectors Fittings |
| Person 1 | |
| Function | First Officer Pilot Flying |
| Qualification | Flight Crew Air Transport Pilot (ATP) |
| Events | |
| Anomaly | Aircraft Equipment Problem Critical |
Narrative:
20 minutes prior to landing; the left hydraulic engine pump EICAS message illuminated. The captain; pilot monitoring; complied the QRH procedures. Once flaps 1 was selected the left hydraulic qty EICAS message illuminated. The captain verified on the EICAS that the left hydraulic quantity was low and then complied with the QRH procedures. The configuration of the airplane continued as we approached the airport. Flaps 30 was selected; but the flaps remained at 25 degrees and the te flap asym EICAS message illuminated. Additionally; the rudder ratio EICAS message illuminated. The captain complied with the QRH procedures and the airplane was landed. Upon touchdown; it was discovered that the nose wheel steering was inoperative. The captain took control of the airplane at around 40 knots and was able to get the airplane safely off of the runway and stopped. ATC was notified that we were unable to taxi and needed to be towed into the gate. Maintenance towed the airplane to the gate. A hydraulic line in the left hydraulic system split causing the hydraulic fluid to drain out of the system.
Original NASA ASRS Text
Title: B757 First Officer experiences a L HYD ENG PUMP EICAS message during descent; followed by a L HYD QTY EICAS message when Flaps 1 is selected. The approach is continued and when flaps 30 is selected; a TE FLAP ASYM EICAS and a RUDDER RATIO EICAS message appear. After landing the nosewheel steering is discovered to be inoperative and the aircraft is towed to the gate.
Narrative: 20 Minutes prior to landing; the L HYD ENG PUMP EICAS message illuminated. The Captain; pilot monitoring; complied the QRH procedures. Once flaps 1 was selected the L HYD QTY EICAS message illuminated. The Captain verified on the EICAS that the left hydraulic quantity was low and then complied with the QRH procedures. The configuration of the airplane continued as we approached the airport. Flaps 30 was selected; but the flaps remained at 25 degrees and the TE FLAP ASYM EICAS message illuminated. Additionally; the RUDDER RATIO EICAS message illuminated. The Captain complied with the QRH procedures and the airplane was landed. Upon touchdown; it was discovered that the nose wheel steering was inoperative. The Captain took control of the airplane at around 40 knots and was able to get the airplane safely off of the runway and stopped. ATC was notified that we were unable to taxi and needed to be towed into the gate. Maintenance towed the airplane to the gate. A hydraulic line in the left hydraulic system split causing the hydraulic fluid to drain out of the system.
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.