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Citation 550 first officer reported a loss of oil pressure caused an air turn back and emergency landing.
| Attributes | |
| ACN | 1694353 |
| Time | |
| Date | 201910 |
| Local Time Of Day | 1201-1800 |
| Place | |
| Locale Reference | ZZZ.Airport |
| State Reference | US |
| Environment | |
| Flight Conditions | VMC |
| Light | Daylight |
| Aircraft 1 | |
| Make Model Name | Citation II S2/Bravo (C550) |
| Operating Under FAR Part | Part 135 |
| Flight Phase | Climb |
| Route In Use | Direct |
| Flight Plan | IFR |
| Component | |
| Aircraft Component | Oil Line |
| Person 1 | |
| Function | First Officer Pilot Not Flying |
| Qualification | Flight Crew Multiengine Flight Crew Instrument Flight Crew Air Transport Pilot (ATP) |
| Experience | Flight Crew Last 90 Days 85 Flight Crew Total 22549 Flight Crew Type 383 |
| Events | |
| Anomaly | Aircraft Equipment Problem Less Severe Deviation - Procedural Maintenance Deviation - Procedural Published Material / Policy |
Narrative:
Shortly after take-off; we noticed a drop in oil pressure on the number 1 engine. We continued to monitor the oil pressure as it continued to drop. We notified ATC and requested a return to ZZZ. When the oil pressure reached its lower limits we proceeded to complete the engine shutdown per the engine shutdown checklist and [requested priority handling] and made an uneventful landing. Maintenance discovered a crimped O ring which appeared to have been in an oil line since the last engine overhaul.
Original NASA ASRS Text
Title: Citation 550 First Officer reported a loss of oil pressure caused an air turn back and emergency landing.
Narrative: Shortly after take-off; we noticed a drop in oil pressure on the number 1 engine. We continued to monitor the oil pressure as it continued to drop. We notified ATC and requested a return to ZZZ. When the oil pressure reached its lower limits we proceeded to complete the engine shutdown per the engine shutdown checklist and [Requested Priority Handling] and made an uneventful landing. Maintenance discovered a crimped O ring which appeared to have been in an oil line since the last engine overhaul.
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.