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A saab 340 shut down #1 engine in-flight and returned to the field due to loss of oil quantity and pressure. Caused by missing angle gear box seal.
| Attributes | |
| ACN | 562083 |
| Time | |
| Date | 200210 |
| Day | Fri |
| Local Time Of Day | 0601 To 1200 |
| Place | |
| Locale Reference | airport : zzz.airport |
| State Reference | US |
| Altitude | agl single value : 0 |
| Aircraft 1 | |
| Operator | common carrier : air carrier |
| Make Model Name | SF 340A |
| Operating Under FAR Part | Part 121 |
| Person 1 | |
| Affiliation | company : air carrier |
| Qualification | technician : powerplant technician : airframe |
| Experience | maintenance technician : 8 |
| ASRS Report | 562083 |
| Events | |
| Anomaly | aircraft equipment problem : critical maintenance problem : improper maintenance maintenance problem : improper documentation non adherence : published procedure non adherence : far |
| Independent Detector | aircraft equipment other aircraft equipment : #1 eng oil press ind |
| Resolutory Action | flight crew : diverted to another airport |
| Consequence | other other |
| Factors | |
| Maintenance | contributing factor : manuals performance deficiency : testing performance deficiency : logbook entry performance deficiency : training performance deficiency : installation performance deficiency : inspection |
| Supplementary | |
| Problem Areas | Aircraft Maintenance Human Performance |
| Primary Problem | Maintenance Human Performance |
Narrative:
Worked on replacing the bb axis seal on #1 engine agb, and mistakenly left out an o-ring that goes on the bb axis seal, which caused a loss of oil and engine oil pressure.
Original NASA ASRS Text
Title: A SAAB 340 SHUT DOWN #1 ENG INFLT AND RETURNED TO THE FIELD DUE TO LOSS OF OIL QUANTITY AND PRESSURE. CAUSED BY MISSING ANGLE GEAR BOX SEAL.
Narrative: WORKED ON REPLACING THE BB AXIS SEAL ON #1 ENG AGB, AND MISTAKENLY LEFT OUT AN O-RING THAT GOES ON THE BB AXIS SEAL, WHICH CAUSED A LOSS OF OIL AND ENG OIL PRESSURE.
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.