2025-05 · NASA ASRS report 2247288
Aircraft technicians reported they accomplished an engine mount repair which required the removal of the nose landing gear. The nose landing gear failed to extend on the third flight.
Inspection and Maintenance:Annual inspection completed: Day 0.Extensive engine and airframe work performed.Nose gear removed for engine mount repair.Nose gear reinstalled; operational checks conducted with no defects observed.Manual gear extension performed with no defects observed.The secondary technician inspected gear attach points and applied tamper seals.All hardware properly torqued and safetied.Inspection checklist completed for all work.Verification flight conducted; minor defects identified and repaired.Incident Details:Incident Date: Day 22.Incident Reported: Day 35.The owner flew the aircraft twice after maintenance.The nose gear failed to extend during landing on the third flight.The aircraft sustained damage to the engine; propeller; and airframe due to nose-down landing.No deaths or injuries occurred.No declared emergency reported by pilot.Data shows pilot making landing approach with no indication of verifying nose gear or attempting to extend it. I would expect if known nose gear issue that attempts would have been made to rectify prior to landing.Initial Assessment:No apparent errors were identified in maintenance procedures.Human factors are considered as a potential contributing factor.Final inspection pending to determine cause.At this time; I am not sure of what or if we could have done to prevent this incident. At this time; I am assuming pilot error.
Aircraft X - Nose landing gear incident Engine mount and landing gear installed by a second technician.Attaching hardware verified and tamper sealed.Landing gear and emergency free fall system operated multiple times without issue.Aircraft test flown with no discrepancies observed.Customer flew aircraft twice.Nose gear up landing occurred on the customer's 3rd flight (Day 22).Human factors may have contributed to the incident.Inspection pending to determine the cause of the gear up landing.At this time pilot error may be a contributing factor.
Source: NASA Aviation Safety Reporting System (public domain). Reports are voluntary submissions and are not verified by NASA.
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