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A B757-200 shut down #1 engine in-flight due to loss of oil quantity and pressure caused by a scavenge oil line connector not secured.
| Attributes | |
| ACN | 408351 |
| Time | |
| Date | 199807 |
| Day | Wed |
| Local Time Of Day | 0601 To 1200 |
| Place | |
| Locale Reference | airport : zzz |
| State Reference | US |
| Altitude | agl bound lower : 0 agl bound upper : 0 |
| Environment | |
| Light | Daylight |
| Aircraft 1 | |
| Operator | common carrier : air carrier |
| Make Model Name | B757-200 |
| Operating Under FAR Part | Part 121 |
| Navigation In Use | Other Other |
| Flight Phase | ground : parked other |
| Flight Plan | None |
| Person 1 | |
| Affiliation | company : air carrier |
| Function | other personnel other |
| Qualification | other other : other |
| ASRS Report | 408351 |
| Person 2 | |
| Affiliation | company : air carrier |
| Function | other personnel other |
| Qualification | other other : other |
| ASRS Report | 408230 |
| Events | |
| Anomaly | aircraft equipment problem : critical non adherence : far non adherence : published procedure |
| Independent Detector | aircraft equipment other aircraft equipment : unspecified other flight crewa |
| Resolutory Action | none taken : detected after the fact other |
| Consequence | Other |
| Supplementary | |
| Air Traffic Incident | other |
Narrative:
I got involved helping co-worker by replacing pneumatic tube on #1 engine. In order to replace the line we ended up loosening 2 each additional lines, which one was engine oil scavenger line. After removing the old line and positioning the new one, since it was his job and I was helping, I told him it's break time and I'm going to take a break. After I came back, I asked him can I help with anything else. He said everything is tight. I said you want me to do safetying. He said sounds good, and I safetied 5 or 6 tube fittings which I know it was loose, and I left. When I came back from my days off, I found out one of those fittings came loose and lost the oil and caused the engine shutdown. Note: I'm air carrier abc mechanic and the aircraft was air carrier xyz B757.
Original NASA ASRS Text
Title: A B757-200 SHUT DOWN #1 ENG INFLT DUE TO LOSS OF OIL QUANTITY AND PRESSURE CAUSED BY A SCAVENGE OIL LINE CONNECTOR NOT SECURED.
Narrative: I GOT INVOLVED HELPING CO-WORKER BY REPLACING PNEUMATIC TUBE ON #1 ENG. IN ORDER TO REPLACE THE LINE WE ENDED UP LOOSENING 2 EACH ADDITIONAL LINES, WHICH ONE WAS ENG OIL SCAVENGER LINE. AFTER REMOVING THE OLD LINE AND POSITIONING THE NEW ONE, SINCE IT WAS HIS JOB AND I WAS HELPING, I TOLD HIM IT'S BREAK TIME AND I'M GOING TO TAKE A BREAK. AFTER I CAME BACK, I ASKED HIM CAN I HELP WITH ANYTHING ELSE. HE SAID EVERYTHING IS TIGHT. I SAID YOU WANT ME TO DO SAFETYING. HE SAID SOUNDS GOOD, AND I SAFETIED 5 OR 6 TUBE FITTINGS WHICH I KNOW IT WAS LOOSE, AND I LEFT. WHEN I CAME BACK FROM MY DAYS OFF, I FOUND OUT ONE OF THOSE FITTINGS CAME LOOSE AND LOST THE OIL AND CAUSED THE ENG SHUTDOWN. NOTE: I'M ACR ABC MECH AND THE ACFT WAS ACR XYZ B757.
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.