On June 19, 1999, a Cessna A188B (registration N53198) operated by Michael Lewis was involved in an aviation accident near Glen Allan, MS. No fatalities were reported. Investigators recorded the probable cause as: The left aileron control bolt separated; the bolt was too short and did not protrude through the nylon lock nut, and the rod-end bearing was seized. This summary draws on records from the U.S. National Transportation Safety Board (NTSB) historical archive.
During a field survey flight, the pilot experienced loss of control and executed a forced landing. Examination revealed a separated aileron control bolt that was too short, and a seized rod-end bearing.
Incident Summary
The pilot of an airplane conducting a field survey for future work reported that the aircraft became uncontrollable. The pilot selected an emergency landing area and performed a forced landing in a field. During the landing, the left wing collided with the ground, causing the airplane to cartwheel and sustain structural damage.
Examination Findings
Following the incident, the pilot reported that the left aileron control bolt had separated from the control surface. When the left aileron was removed from the airframe, the missing bolt was recovered from the inter-structure of the wing area. The bolt was reinstalled through the aileron assembly, and appeared to provide enough thread material to secure the assembly. Further examination of the bolt assembly revealed that the bolt connecting the forward end of the control rod to the bell crank was too short and did not protrude through the nylon lock on the nut. Additionally, the rod-end bearing was seized and would not move.
Probable cause
The left aileron control bolt separated; the bolt was too short and did not protrude through the nylon lock nut, and the rod-end bearing was seized.
What happened in the 19 Jun 1999 Cessna A188B accident near Glen Allan, MS?
During a field survey flight, the pilot experienced loss of control and executed a forced landing. Examination revealed a separated aileron control bolt that was too short, and a seized rod-end bearing.
Were there any fatalities in the 19 Jun 1999 Cessna A188B accident?
No fatalities were recorded in this accident.
What aircraft was involved and where did it happen?
The accident on 19 Jun 1999 involved a Cessna A188B, registration N53198, operated by Michael Lewis, at Glen Allan, MS.
What was the probable cause of the accident?
The left aileron control bolt separated; the bolt was too short and did not protrude through the nylon lock nut, and the rod-end bearing was seized.
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