NTSB Identification: ANC05IA048.
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Incident occurred Wednesday, March 09, 2005 in Nome, AK
Probable Cause Approval Date: 04/25/2006
Aircraft: Reims Aviation F406, registration: N6591R
Injuries: 1 Uninjured.
NTSB investigators used data provided by various sources and may not have traveled in support of this investigation to prepare this aircraft incident report.
The airline transport certificated pilot of the Title 14, CFR Part 91, positioning flight reported getting an unsafe nose gear indication prior to landing, and was unable to extend the nose gear. He landed the airplane with the nose wheel retracted. An inspection of the nose landing gear up lock actuator bracket by the National Transportation Safety Board investigator-in-charge, revealed that both the left and right sides of the bracket had fatigue cracks that propagated from the top of each side to the top of a lightening hole near the center of each side. The lower portion of the bracket had distorted, changing its position relative to the nose wheel up lock mechanism, which rendered the up lock unable to disengage. Maintenance records indicated compliance with inspection guidelines for the affected area by the operator. The pilot reported that there were no other mechanical problems with the airplane prior to the incident.
The National Transportation Safety Board determines the probable cause(s) of this incident to be: The failure of the nose gear up lock actuator bracket during the landing approach due to fatigue cracking, which resulted in a nose wheel up landing. A factor associated with the incident is the mechanical binding of the nose wheel locking mechanism. Full narrative available
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