What happened
The FAA’s narrative, in sentence case. The FAA writes it in capitals and removes private details.
On September 7th the pilot departed klou at about 10 am headed for klck.
At about 11:15, pilot requested doing the ILS rw 5L and was approved for it by ATC. The controller
Said to descend to 3,000 feet from current 5,000 feet cruise altitude. Pilot began descent about 15 miles out from the airport. Upon reaching 3,000 a severe vibration and rumbling from the engine suddenly started and the front nose of the plane was shaking. All gauges read normal and fuel flow was at 13. The engine ran rough and the plane struggled to hold 3,000 ft altitude so pilot added throttle but the engine would not increase rpms over 2300. He pushed the mixture fully in but it made no change in the problem so he called ATC to declare an emergency.
Pilot slowly descended and was able to make a normal, safe landing. As he was landing there was extreme shuddering and shaking of the front
Of the plane with the runway below. The emergency workers confirmed that there was extreme shaking of the plane at the front of the a/c.
When directed by tower to taxi to rickenbacker aviation FBO the shaking and shuddering suddenly stopped. Pilot added extra throttle to see what the engine would do and it performed perfectly. It shut down normally.
Staement furnished by pilot via email on 9/9/2022
As the FAA filed it
ON SEPTEMBER 7TH THE PILOT DEPARTED KLOU AT ABOUT 10 AM HEADED FOR KLCK.
AT ABOUT 11:15, PILOT REQUESTED DOING THE ILS RW 5L AND WAS APPROVED FOR IT BY ATC. THE CONTROLLER
SAID TO DESCEND TO 3,000 FEET FROM CURRENT 5,000 FEET CRUISE ALTITUDE. PILOT BEGAN DESCENT ABOUT 15 MILES OUT FROM THE AIRPORT. UPON REACHING 3,000 A SEVERE VIBRATION AND RUMBLING FROM THE ENGINE SUDDENLY STARTED AND THE FRONT NOSE OF THE PLANE WAS SHAKING. ALL GAUGES READ NORMAL AND FUEL FLOW WAS AT 13. THE ENGINE RAN ROUGH AND THE PLANE STRUGGLED TO HOLD 3,000 FT ALTITUDE SO PILOT ADDED THROTTLE BUT THE ENGINE WOULD NOT INCREASE RPMS OVER 2300. HE PUSHED THE MIXTURE FULLY IN BUT IT MADE NO CHANGE IN THE PROBLEM SO HE CALLED ATC TO DECLARE AN EMERGENCY.
PILOT SLOWLY DESCENDED AND WAS ABLE TO MAKE A NORMAL, SAFE LANDING. AS HE WAS LANDING THERE WAS EXTREME SHUDDERING AND SHAKING OF THE FRONT
OF THE PLANE WITH THE RUNWAY BELOW. THE EMERGENCY WORKERS CONFIRMED THAT THERE WAS EXTREME SHAKING OF THE PLANE AT THE FRONT OF THE A/C.
WHEN DIRECTED BY TOWER TO TAXI TO RICKENBACKER AVIATION FBO THE SHAKING AND SHUDDERING SUDDENLY STOPPED. PILOT ADDED EXTRA THROTTLE TO SEE WHAT THE ENGINE WOULD DO AND IT PERFORMED PERFECTLY. IT SHUT DOWN NORMALLY.
STAEMENT FURNISHED BY PILOT VIA EMAIL ON 9/9/2022