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An air carrier flight crew shuts down the left engine when it starts to lose oil and return to their departure airport and land.
| Attributes | |
| ACN | 330288 |
| Time | |
| Date | 199603 |
| Day | Fri |
| Local Time Of Day | 0601 To 1200 |
| Place | |
| Locale Reference | atc facility : vla airport : stl |
| State Reference | IL |
| Altitude | msl bound lower : 33000 msl bound upper : 33000 |
| Environment | |
| Flight Conditions | VMC |
| Light | Daylight |
| Aircraft 1 | |
| Controlling Facilities | artcc : zid |
| Operator | common carrier : air carrier |
| Make Model Name | Commercial Fixed Wing |
| Operating Under FAR Part | Part 121 |
| Navigation In Use | Other Other |
| Flight Phase | cruise other |
| Flight Plan | IFR |
| Person 1 | |
| Affiliation | company : air carrier |
| Function | flight crew : captain oversight : pic |
| Qualification | pilot : atp pilot : commercial pilot : flight engineer |
| Experience | flight time last 90 days : 210 flight time total : 19000 flight time type : 5000 |
| ASRS Report | 330288 |
| Person 2 | |
| Affiliation | company : air carrier |
| Function | flight crew : first officer |
| Qualification | pilot : flight engineer pilot : atp |
| Experience | flight time last 90 days : 210 flight time total : 6700 flight time type : 210 |
| ASRS Report | 330049 |
| Events | |
| Anomaly | aircraft equipment problem : critical other anomaly other |
| Independent Detector | aircraft equipment other aircraft equipment : unspecified other flight crewa |
| Resolutory Action | flight crew : declared emergency flight crew : overcame equipment problem other |
| Consequence | Other |
| Supplementary | |
| Primary Problem | Aircraft |
Narrative:
Just after reaching cruise altitude at FL330, the left engine oil strainer clogging light illuminated accompanied by rising oil temperature and decreasing oil quantity. We turned the aircraft back to the departure station and operated the left engine at idle thrust while starting a descent. When the oil quantity decreased from 15 quarts to 6 quarts, we shut down the left engine. ATC supervisor declared an emergency. We requested emergency equipment standing by at departure art. A single engine approach was made at st louis airport. Approach and landing were normal as was the gradual descent from FL330 to the straight in ILS. Wind was 10 KTS straight down runway and skies were clear. Maintenance found a cracked oil line at the filter.
Original NASA ASRS Text
Title: AN ACR FLC SHUTS DOWN THE L ENG WHEN IT STARTS TO LOSE OIL AND RETURN TO THEIR DEP ARPT AND LAND.
Narrative: JUST AFTER REACHING CRUISE ALT AT FL330, THE L ENG OIL STRAINER CLOGGING LIGHT ILLUMINATED ACCOMPANIED BY RISING OIL TEMP AND DECREASING OIL QUANTITY. WE TURNED THE ACFT BACK TO THE DEP STATION AND OPERATED THE L ENG AT IDLE THRUST WHILE STARTING A DSCNT. WHEN THE OIL QUANTITY DECREASED FROM 15 QUARTS TO 6 QUARTS, WE SHUT DOWN THE L ENG. ATC SUPVR DECLARED AN EMER. WE REQUESTED EMER EQUIP STANDING BY AT DEP ART. A SINGLE ENG APCH WAS MADE AT ST LOUIS ARPT. APCH AND LNDG WERE NORMAL AS WAS THE GRADUAL DSCNT FROM FL330 TO THE STRAIGHT IN ILS. WIND WAS 10 KTS STRAIGHT DOWN RWY AND SKIES WERE CLR. MAINT FOUND A CRACKED OIL LINE AT THE FILTER.
Data retrieved from NASA's ASRS site as of July 2007 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.