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Pilot of a small aircraft ses made a forced landing on lake after the engine started vibrating. Found loose spark plug lead.
| Attributes | |
| ACN | 271758 |
| Time | |
| Date | 199405 |
| Day | Sun |
| Local Time Of Day | 1201 To 1800 |
| Place | |
| Locale Reference | airport : ny34 |
| State Reference | NY |
| Altitude | agl bound lower : 0 agl bound upper : 0 |
| Environment | |
| Flight Conditions | VMC |
| Light | Daylight |
| Aircraft 1 | |
| Operator | general aviation : personal |
| Make Model Name | Any Unknown or Unlisted Aircraft Manufacturer |
| Operating Under FAR Part | Part 91 |
| Flight Phase | cruise other landing other |
| Flight Plan | None |
| Person 1 | |
| Affiliation | Other |
| Function | flight crew : single pilot |
| Qualification | pilot : instrument pilot : private |
| Experience | flight time last 90 days : 40 flight time total : 1400 flight time type : 40 |
| ASRS Report | 271758 |
| Person 2 | |
| Affiliation | government other |
| Function | other personnel other |
| Qualification | other other : other |
| Events | |
| Anomaly | aircraft equipment problem : critical other anomaly other |
| Independent Detector | aircraft equipment other aircraft equipment : unspecified other flight crewa |
| Resolutory Action | flight crew : declared emergency other |
| Consequence | Other |
| Supplementary | |
| Primary Problem | Aircraft |
Narrative:
How the problem arose: engine vibration. How it was discovered: landed at lake lila, ny, R225 degrees slk 44 NM and R323 degrees grl 63 NM. Corrective action: discovered loose spark plug cable and tightened up. This stopped the vibration and imbal in the engine. A conservation ranger of ny state came over and wanted to know what the problem was. I explained and he said that the lake was closed to motorized craft. He took my name, pilots number, address and registration number. This he said would be reported as a violation of state law. I explained that I had engine trouble and although not a life threatening situation I was forced to land immediately in order to assess the damage. As lake lilac was directly below, this was the prudent and safest course of action. After rectifying the problem I took off safely with no further trouble.
Original NASA ASRS Text
Title: PLT OF A SMA SES MADE A FORCED LNDG ON LAKE AFTER THE ENG STARTED VIBRATING. FOUND LOOSE SPARK PLUG LEAD.
Narrative: HOW THE PROB AROSE: ENG VIBRATION. HOW IT WAS DISCOVERED: LANDED AT LAKE LILA, NY, R225 DEGS SLK 44 NM AND R323 DEGS GRL 63 NM. CORRECTIVE ACTION: DISCOVERED LOOSE SPARK PLUG CABLE AND TIGHTENED UP. THIS STOPPED THE VIBRATION AND IMBAL IN THE ENG. A CONSERVATION RANGER OF NY STATE CAME OVER AND WANTED TO KNOW WHAT THE PROB WAS. I EXPLAINED AND HE SAID THAT THE LAKE WAS CLOSED TO MOTORIZED CRAFT. HE TOOK MY NAME, PLTS NUMBER, ADDRESS AND REGISTRATION NUMBER. THIS HE SAID WOULD BE RPTED AS A VIOLATION OF STATE LAW. I EXPLAINED THAT I HAD ENG TROUBLE AND ALTHOUGH NOT A LIFE THREATENING SIT I WAS FORCED TO LAND IMMEDIATELY IN ORDER TO ASSESS THE DAMAGE. AS LAKE LILAC WAS DIRECTLY BELOW, THIS WAS THE PRUDENT AND SAFEST COURSE OF ACTION. AFTER RECTIFYING THE PROB I TOOK OFF SAFELY WITH NO FURTHER TROUBLE.
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.