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A cessna 206 on climb at 5000 ft declared an emergency and diverted due to low oil pressure and high oil temperature caused by a plugged oil cooler.
| Attributes | |
| ACN | 451712 |
| Time | |
| Date | 199910 |
| Day | Wed |
| Local Time Of Day | 1201 To 1800 |
| Place | |
| Locale Reference | airport : hst.airport |
| State Reference | FL |
| Altitude | msl single value : 5000 |
| Environment | |
| Flight Conditions | Mixed |
| Light | Daylight |
| Aircraft 1 | |
| Controlling Facilities | tracon : mia.tracon |
| Operator | other |
| Make Model Name | Cessna Stationair/Turbo Stationair 6 |
| Operating Under FAR Part | Part 91 |
| Navigation In Use | other |
| Flight Phase | climbout : intermediate altitude |
| Route In Use | departure : vfr |
| Flight Plan | VFR |
| Person 1 | |
| Function | flight crew : captain oversight : pic |
| Qualification | pilot : atp pilot : cfi pilot : flight engineer |
| Experience | flight time last 90 days : 30 flight time total : 9700 flight time type : 5 |
| ASRS Report | 451712 |
| Person 2 | |
| Function | instruction : trainee |
| Qualification | pilot : multi engine pilot : instrument pilot : atp pilot : commercial |
| Events | |
| Anomaly | aircraft equipment problem : critical maintenance problem : improper maintenance non adherence : published procedure |
| Independent Detector | aircraft equipment other aircraft equipment : oil pressure indicator other flight crewa other flight crewb |
| Resolutory Action | flight crew : declared emergency |
| Consequence | other |
| Factors | |
| Maintenance | contributing factor : schedule pressure performance deficiency : repair performance deficiency : inspection performance deficiency : testing |
| Supplementary | |
| Problem Areas | Aircraft |
| Primary Problem | Aircraft |
Narrative:
While administering an initial check ride to a new PIC, we were climbing through 5000 ft MSL. I observed the engine oil psi gauge showing less than 25 psi and a red annunciator light illuminated. Also observed the oil temperature gauge showing an increase in temperature. I declared an emergency with mia TRACON and our organization, reduced power and started drifting down to 1500 ft until landing was assured. Maintenance is still working the problem, however, they have been able to duplicate the problem on a ground run. No other information. Callback conversation with reporter revealed the following information: the reporter stated the aircraft was a cessna 206G and the engine was a continental 520 with 50 total hours. The reporter said the loss of oil pressure was caused by a plugged oil cooler which was not cleaned when the engine was replaced.
Original NASA ASRS Text
Title: A CESSNA 206 ON CLB AT 5000 FT DECLARED AN EMER AND DIVERTED DUE TO LOW OIL PRESSURE AND HIGH OIL TEMP CAUSED BY A PLUGGED OIL COOLER.
Narrative: WHILE ADMINISTERING AN INITIAL CHK RIDE TO A NEW PIC, WE WERE CLBING THROUGH 5000 FT MSL. I OBSERVED THE ENG OIL PSI GAUGE SHOWING LESS THAN 25 PSI AND A RED ANNUNCIATOR LIGHT ILLUMINATED. ALSO OBSERVED THE OIL TEMP GAUGE SHOWING AN INCREASE IN TEMP. I DECLARED AN EMER WITH MIA TRACON AND OUR ORGANIZATION, REDUCED PWR AND STARTED DRIFTING DOWN TO 1500 FT UNTIL LNDG WAS ASSURED. MAINT IS STILL WORKING THE PROB, HOWEVER, THEY HAVE BEEN ABLE TO DUPLICATE THE PROB ON A GND RUN. NO OTHER INFO. CALLBACK CONVERSATION WITH RPTR REVEALED THE FOLLOWING INFO: THE RPTR STATED THE ACFT WAS A CESSNA 206G AND THE ENG WAS A CONTINENTAL 520 WITH 50 TOTAL HRS. THE RPTR SAID THE LOSS OF OIL PRESSURE WAS CAUSED BY A PLUGGED OIL COOLER WHICH WAS NOT CLEANED WHEN THE ENG WAS REPLACED.
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.