 |
37000 Feet | Browse and search NASA's Aviation Safety Reporting System |
|
An AC50B pilot reported inflight shut down of the right engine as a precaution when discrepancies were noted in oil pressure and manifold pressure.
| Attributes | |
| ACN | 1292791 |
| Time | |
| Date | 201509 |
| Local Time Of Day | 1801-2400 |
| Place | |
| Locale Reference | ZZZ.Airport |
| State Reference | US |
| Environment | |
| Flight Conditions | Marginal |
| Light | Night |
| Aircraft 1 | |
| Make Model Name | Aero Commander 500 Series |
| Operating Under FAR Part | Part 135 |
| Flight Phase | Cruise |
| Route In Use | Vectors |
| Flight Plan | IFR |
| Component | |
| Aircraft Component | Engine |
| Person 1 | |
| Function | Captain Single Pilot Pilot Flying |
| Qualification | Flight Crew Commercial Flight Crew Multiengine Flight Crew Instrument |
| Experience | Flight Crew Last 90 Days 240 Flight Crew Total 5020 Flight Crew Type 480 |
| Events | |
| Anomaly | Aircraft Equipment Problem Critical Deviation - Procedural Published Material / Policy |
Narrative:
I had just reduced the manifold pressure in anticipation of a descent. I noticed that the oil pressure needle was starting to drift down on the starboard engine; and the manifold pressure needles had split slightly and risen slightly on the starboard engine. I elected to shut down the starboard engine per the checklist; and continue the flight. As it was night; and the terrain was mountainous; I asked ATC for a diversion to the nearest airfield for a precautionary landing. ATC gave a vector heading to the airfield. I requested some landing information from ATC. That bought me time to review the airport on the chart. The winds were calm so a straight in approach was selected. The approach and landing was uneventful.post flight revealed that the oil dipsticks were not properly installed; and oil had siphoned out in flight. I disobeyed my own rule of not letting anyone interrupt me during a preflight; and had walked away from my airplane. Being night time; discrepancies were harder to spot. I should have redone the preflight from the beginning. For sure; I will not let this happen again. Finally; thanks to ATC for being so helpful; and the hospitality of the ground crew.
Original NASA ASRS Text
Title: An AC50B pilot reported inflight shut down of the right engine as a precaution when discrepancies were noted in oil pressure and manifold pressure.
Narrative: I had just reduced the manifold pressure in anticipation of a descent. I noticed that the oil pressure needle was starting to drift down on the starboard engine; and the manifold pressure needles had split slightly and risen slightly on the starboard engine. I elected to shut down the starboard engine per the checklist; and continue the flight. As it was night; and the terrain was mountainous; I asked ATC for a diversion to the nearest airfield for a precautionary landing. ATC gave a vector heading to the airfield. I requested some landing information from ATC. That bought me time to review the airport on the chart. The winds were calm so a straight in approach was selected. The approach and landing was uneventful.Post flight revealed that the oil dipsticks were not properly installed; and oil had siphoned out in flight. I disobeyed my own rule of not letting anyone interrupt me during a preflight; and had walked away from my airplane. Being night time; discrepancies were harder to spot. I should have redone the preflight from the beginning. For sure; I will not let this happen again. Finally; thanks to ATC for being so helpful; and the hospitality of the ground crew.
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.