Friday, December 30, 2016

Maule M-7-235C, Richardson Companies Inc., N66E: Incident occurred December 28, 2016 -and- Accident occurred January 29, 2016 at Macon-Fower Municipal Airport (K89), Macon, Macon County, Missouri

RICHARDSON COMPANIES INC: http://registry.faa.govN66E

FAA Flight Standards District Office: KANSAS CITY 

AIRCRAFT ENCOUNTERED CROSSWIND ON LANDING AND PUSHED AIRCRAFT OFF THE SIDE OF THE RUNWAY.

Date: 28-DEC-16
Time: 19:30:00Z
Regis#: N66E
Aircraft Make: MAULE
Aircraft Model: M7
Event Type: INCIDENT
Highest Injury: NONE
Aircraft Missing: No
Damage: MINOR
Activity: PERSONAL
Flight Phase: LANDING (LDG)
Operation: 91
City: MACON
State: MISSOURI
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The National Transportation Safety Board did not travel to the scene of this accident.

Aviation Accident Final Report -  National Transportation Safety Board:   https://app.ntsb.gov/pdf

Docket And Docket Items - National Transportation Safety Board:   https://dms.ntsb.gov/pubdms

Aviation Accident Data Summary - National Transportation Safety Board:   https://app.ntsb.gov/pdf

NTSB Identification: CEN16LA100
14 CFR Part 91: General Aviation
Accident occurred Friday, January 29, 2016 in Macon, MO
Probable Cause Approval Date: 11/28/2016
Aircraft: MAULE M 7-235C, registration: N66E
Injuries: 1 Uninjured.

NTSB investigators may not have traveled in support of this investigation and used data provided by various sources to prepare this aircraft accident report.

During the landing roll following a normal touchdown after a personal flight, the pilot felt a vibration in the airframe, and the right main landing gear collapsed. The pilot was unable to maintain directional control, and the airplane departed the side of the runway. A pilot-rated witness confirmed that the landing approach, flare, and touchdown were normal, and the surface wind was about a 20-degree left crosswind at 8 to 10 knots and not gusting at the time of landing. An examination of the airplane revealed the right main landing gear strut assembly failed, and all associated fracture surfaces were consistent with overload. The reason for the overload failure could not be determined.

The National Transportation Safety Board determines the probable cause(s) of this accident as follows:
The failure of the right main landing gear assembly for reasons that could not be determined based on the available information.

On January 29, 2016, about 1130 central standard time, a Maule M 7-235C single-engine airplane, N66E, experienced a right main landing gear collapse during landing at the Macon-Fower Municipal Airport (K89), Macon, Missouri. The private pilot was not injured, and the airplane sustained substantial damage to the fuselage and right wing. The airplane was registered to Richardson Companies, Inc., and operated by a private individual as a 14 Code of Federal Regulations Part 91 personal flight. Visual meteorological conditions prevailed at the time of the accident, and no flight plan was filed. The local flight departed at an unknown time.

After a normal touchdown on runway 20 and during the landing roll, the pilot felt a vibration in the airframe. Shortly thereafter, the right wing dropped and the pilot lost yaw control. The pilot was unable to maintain directional control, and the airplane departed the left side of the runway. The airplane came to rest upright off the side of the runway. 

A pilot-rated witness stated the landing approach, flare, and touchdown were normal. He reported the wind at 8 to 10 knots, not gusting, and a 20 degree left crosswind for the landing.

Examination of the airplane by a Federal Aviation Administration inspector showed the right main landing gear collapsed and remained partially attached to the fuselage. The right wing strut and right wing were bent. The inspector located the upper half of one bolt that attaches the right main gear strut to the fuselage, and the bolt was sheared. The bolt fracture surface was consistent with an overload failure. The inspector noted the fuselage to main landing gear frame structure was fractured, and the inspector did not see any evidence of corrosion or a preexisting condition that contributed to the failure. The right main landing wheel hub assembly was fractured, and a portion of the hub was not located. The remaining portion of the hub did not display any evidence of corrosion or a preexisting condition that contributed to the failure. The reason for the right main landing gear collapse could not be determined.

NTSB Identification: CEN16LA100
14 CFR Part 91: General Aviation
Accident occurred Friday, January 29, 2016 in Macon, MO
Aircraft: MAULE M 7-235C, registration: N66E
Injuries: 1 Uninjured.

This is preliminary information, subject to change, and may contain errors. Any errors in this report will be corrected when the final report has been completed. NTSB investigators may not have traveled in support of this investigation and used data provided by various sources to prepare this aircraft accident report.

On January 29, 2016, at 1145 central standard time, a Maule M 7-235C, N66E, experienced a landing gear collapse during landing at the Macon-Fower Municipal Airport (K89), Macon, Missouri. The private pilot was not injured, and the airplane sustained substantial damage to the fuselage and right wing. The airplane was registered to Richardson Companies, Inc., and operated by a private individual as a 14 Code of Federal Regulations Part 91 personal flight. Visual meteorological conditions prevailed at the time of the accident, and no flight plan was filed. The local flight departed at an unknown time.

According to the pilot, after touchdown and during the landing roll, he felt a vibration in the airframe. Shortly thereafter, the right wing dropped and the pilot lost yaw control. The pilot applied engine power to attempt to keep the airplane on the runway centerline. The pilot was unable to maintain directional control, and the airplane departed the left side of the runway. The airplane came to rest upright off the side of the runway.

Examination of the airplane by a Federal Aviation Administration inspector showed the right main landing gear collapsed and remained partially attached to the fuselage. The right wing strut and right wing were bent.

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