Investigation Docket - National Transportation Safety Board: https://dms.ntsb.gov/pubdms
FAA Flight Standards District Office: FAA Kansas City FSDO-63
NTSB Identification: CEN16LA354
14 CFR Part 91: General Aviation
Accident occurred Monday, August 29, 2016 in Monett, MO
Probable Cause Approval Date: 05/01/2017
Aircraft: NORTH AMERICAN NAVION, registration: N91488
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.
The commercial pilot stated that, during the landing roll following a normal landing, the airplane began pulling to the right. The airplane departed the right side of the runway and traveled down an embankment and through a barbed wire fence. When the pilot inspected the airplane, he noted that the right main landing gear (MLG) had collapsed. An examination of the landing gear found that the locking mechanism had been improperly rigged. Several weeks before the accident, the airplane's right MLG was damaged in an incident and had been replaced with a serviceable unit. A review of maintenance records noted that a gear retraction test was conducted after the replacement and described as satisfactory. It is likely that during this maintenance, the landing gear was improperly rigged, which resulted in its collapse on the accident flight.
The National Transportation Safety Board determines the probable cause(s) of this accident as follows:
Maintenance personnel’s failure to properly rig the right main landing gear locking mechanism, which resulted in a gear collapse during landing.
On August 29, 2016, about 0930 central daylight time, a North American Navion airplane, N91488, departed off the side of the runway at the Monett Regional Airport (KHFJ), Monett, Missouri. The pilot was not injured and the airplane was substantially damaged. The airplane was registered to and operated by a private individual under the provisions of 14 Code of Federal Regulations Part 91 as a personal flight. Visual meteorological conditions prevailed for the flight, which operated without a flight plan. The flight originated from the Gimlin Airport (18MO), Ozark, Missouri, and was landing at KHFJ.
According to the pilot, he landed the airplane on runway 18 at KHFJ about 0930. Weather was clear and he estimated the wind at 120° at 4 knots. Following a normal approached and landing, he noticed the airplane's right wing was lower than the left wing, and the airplane began a pull to the right. The airplane departed the right side of the runway, went down an embankment and run through a barbed wire fence. When the pilot inspected the airplane, he noted that the right main landing gear (MLG) had collapsed. During recovery of the airplane, the airplane was lifted and the right MLG was extended manually and locked.
The airplane was examined by inspectors from the Federal Aviation Administration. A landing gear swing test was conducted and the landing gear had been improperly rigged. A review of the airplane's history revealed that several weeks prior to the accident, the airplane's right MLG scissor was damaged during a high speed turn.
A review of maintenance records revealed that on July 22, 2016, the airplane's right MLG scissor was replaced with a serviceable unit. A gear retraction test was conducted and described as satisfactory.
NTSB Identification: CEN16LA354
14 CFR Part 91: General Aviation
Accident occurred Monday, August 29, 2016 in Monett, MO
Aircraft: NORTH AMERICAN NAVION, registration: N91488
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 August 29, 2016, about 0930 central daylight time, a North American Navion airplane, N91488, collided with a fence while landing at the Monett Regional Airport (KHFJ), Monett, Missouri. The pilot was not injured and the airplane was substantially damaged. The airplane was registered to and operated by a private individual under the provisions of 14 Code of Federal Regulations Part 91 as a personal flight. Visual meteorological conditions prevailed for the flight, which operated without a flight plan. The flight originated from the Gimlin Airport (18MO), Ozark, Missouri, and was landing at KHFJ.
According to an initial report, when the airplane touched down on runway 18, the airplane began to veer to the right. The pilot could not correct the airplane's turn to the right, and it departed the side of the runway, colliding with a fence. A postaccident inspection of the airplane found the right main landing gear collapsed and substantial damage to the wings. The airplane was retained for further examination.
FAA Flight Standards District Office: FAA Kansas City FSDO-63
AIRCRAFT WENT INTO THE GRASS AFTER LANDING COLUMBIA, MISSOURI.
Date: 21-JUL-16
Time: 11:50:00Z
Regis#: N91488
Aircraft Make: NAVION
Aircraft Model: NAVION
Event Type: Incident
Highest Injury: None
Damage: Minor
Activity: Personal
Flight Phase: LANDING (LDG)
Operation: 91
City: COLUMBIA
State: Missouri
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