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A B777 left engine was visually inspected for oil leaks by 2 technicians. Found 2 leaks out of limits and documented source and frequency. Turned over reports to next shift.
| Attributes | |
| ACN | 684596 |
| Time | |
| Date | 200601 |
| Place | |
| Locale Reference | airport : zzz.airport |
| State Reference | US |
| Altitude | agl single value : 0 |
| Aircraft 1 | |
| Operator | common carrier : air carrier |
| Make Model Name | B777 Undifferentiated or Other Model |
| Operating Under FAR Part | Part 121 |
| Flight Phase | ground : maintenance |
| Person 1 | |
| Affiliation | company : air carrier |
| Function | maintenance : technician |
| ASRS Report | 684596 |
| Person 2 | |
| Affiliation | company : air carrier |
| Function | maintenance : technician |
| ASRS Report | 684597 |
| Events | |
| Anomaly | aircraft equipment problem : critical maintenance problem : improper maintenance non adherence : far non adherence : published procedure |
| Independent Detector | aircraft equipment other aircraft equipment : oil qty indicator other other : 1 |
| Resolutory Action | none taken : detected after the fact |
| Consequence | other other |
| Factors | |
| Maintenance | contributing factor : briefing contributing factor : manuals contributing factor : schedule pressure performance deficiency : inspection performance deficiency : non compliance with legal requirements performance deficiency : logbook entry |
| Supplementary | |
| Problem Areas | Aircraft Chart Or Publication Maintenance Human Performance |
| Primary Problem | Maintenance Human Performance |
Narrative:
Mechanic accomplished visual inspection of l-hand engine for possible oil leaks. None found. Accomplished l-hand engine run. Noticed a small amount of oil coming out of drain. Maintenance isolated oil coming from idg approximately 1 drop every min. Also oil coming from back-up generator approximately 1 drop every 1 min. Removed exhaust nozzle and inspect behind tail bearing blanket no oil noted. After review of paperwork; I do not see any faults with our paperwork. We documented what we found and turned list over to next shift for corrective actions.
Original NASA ASRS Text
Title: A B777 L ENG WAS VISUALLY INSPECTED FOR OIL LEAKS BY 2 TECHNICIANS. FOUND 2 LEAKS OUT OF LIMITS AND DOCUMENTED SOURCE AND FREQUENCY. TURNED OVER RPTS TO NEXT SHIFT.
Narrative: MECH ACCOMPLISHED VISUAL INSPECTION OF L-HAND ENG FOR POSSIBLE OIL LEAKS. NONE FOUND. ACCOMPLISHED L-HAND ENG RUN. NOTICED A SMALL AMOUNT OF OIL COMING OUT OF DRAIN. MAINT ISOLATED OIL COMING FROM IDG APPROX 1 DROP EVERY MIN. ALSO OIL COMING FROM BACK-UP GENERATOR APPROX 1 DROP EVERY 1 MIN. REMOVED EXHAUST NOZZLE AND INSPECT BEHIND TAIL BEARING BLANKET NO OIL NOTED. AFTER REVIEW OF PAPERWORK; I DO NOT SEE ANY FAULTS WITH OUR PAPERWORK. WE DOCUMENTED WHAT WE FOUND AND TURNED LIST OVER TO NEXT SHIFT FOR CORRECTIVE ACTIONS.
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.