URBANDALE, IA, USA
N1969Q
CESSNA 177RG
AFTER TAKEOFF, THE ENGINE LOST POWER AT ABOUT 2000 FT MSL. THE PLANE WAS DAMAGED DURING A FORCED LANDING ON AN INTERSTATE HIGHWAY. WHEN CHECKED AFTER THE ACCIDENT, THE ENGINE WOULD START BUT LOST POWER WHEN ACCELERATED ABOVE 1000 RPM. THE BENDIX SERVO FUEL INJECTOR, MODEL RSA-5AD1, WAS BENCH CHECKED AND WOULD DELIVER ONLY IDLE FUEL FLOW. A FURTHER EXAMINATION REVEALED THAT THE ELASTIC STOP NUT, PN 178491, HAD BACKED OFF OF THE FUEL DIAPHRAGM ASSEMBLY STEM. THIS RESTRICTED THE REGULATOR TRAVEL AND RESULTED IN A LEAN MIXTURE.
Source: NTSB Aviation Accident Database
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