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37000 Feet | Browse and search NASA's Aviation Safety Reporting System |
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C150 aircraft developed oil leak in cruise. Reporter pilot made precautionary landing where an FAA inspector found a faulty valve keeper in a cylinder and piston as well as oil dipstick out of position.
| Attributes | |
| ACN | 357325 |
| Time | |
| Date | 199701 |
| Day | Sat |
| Local Time Of Day | 0601 To 1200 |
| Place | |
| Locale Reference | atc facility : n07 |
| State Reference | NJ |
| Altitude | msl bound lower : 1800 msl bound upper : 1800 |
| Environment | |
| Flight Conditions | VMC |
| Light | Daylight |
| Aircraft 1 | |
| Operator | general aviation : personal |
| Make Model Name | Cessna 150 |
| Operating Under FAR Part | Part 91 |
| Flight Phase | cruise other |
| Flight Plan | None |
| Person 1 | |
| Affiliation | Other |
| Function | flight crew : single pilot |
| Qualification | pilot : commercial pilot : cfi pilot : instrument |
| Experience | flight time last 90 days : 19 flight time total : 2633 flight time type : 2000 |
| ASRS Report | 357325 |
| Person 2 | |
| Affiliation | government : faa |
| Function | observation : air carrier inspector |
| Qualification | other other : other |
| Events | |
| Anomaly | aircraft equipment problem : critical |
| Independent Detector | other flight crewa |
| Resolutory Action | flight crew : declared emergency none taken : unable |
| Consequence | faa : investigated |
| Supplementary | |
| Primary Problem | Aircraft |
Narrative:
Precautionary landing due to rough engine and oil splashing on bottom of windshield. After landing on the former arc grass field the FAA inspector found oil dipstick removed from its original in place position. But to the surprise of mr a (FAA man) there were still 4 quarts of oil left in the engine. Further inspection of the engine showed an opening in the cylinder and piston. A failure of the valve keeper apparently caused this damage. The cylinder was replaced and the aircraft was flown back to caldwell, nj.
Original NASA ASRS Text
Title: C150 ACFT DEVELOPED OIL LEAK IN CRUISE. RPTR PLT MADE PRECAUTIONARY LNDG WHERE AN FAA INSPECTOR FOUND A FAULTY VALVE KEEPER IN A CYLINDER AND PISTON AS WELL AS OIL DIPSTICK OUT OF POS.
Narrative: PRECAUTIONARY LNDG DUE TO ROUGH ENG AND OIL SPLASHING ON BOTTOM OF WINDSHIELD. AFTER LNDG ON THE FORMER ARC GRASS FIELD THE FAA INSPECTOR FOUND OIL DIPSTICK REMOVED FROM ITS ORIGINAL IN PLACE POS. BUT TO THE SURPRISE OF MR A (FAA MAN) THERE WERE STILL 4 QUARTS OF OIL LEFT IN THE ENG. FURTHER INSPECTION OF THE ENG SHOWED AN OPENING IN THE CYLINDER AND PISTON. A FAILURE OF THE VALVE KEEPER APPARENTLY CAUSED THIS DAMAGE. THE CYLINDER WAS REPLACED AND THE ACFT WAS FLOWN BACK TO CALDWELL, NJ.
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.