Bellanca 8KCAB Failed Seat Hinge (American Champion Aircraft Corporation provided the following defect report to the FAA.) The rear seat (p/n 7-1500; revision B) failed at the left hinge point. The AN3 series bolt pulled through the hinge lugs, which are welded to the seat frame bottom. The right hinge holes show elongation, but remained intact. This aircraft was doing spin training at the time of the incident. Modifying the seat frame to current standards is recommended. Part Total Time: 1290.0 hours. Cessna 172S Cracked Propeller Bulkhead Repeated cracks have been found on the propeller bulkhead at the edge of the washer footprint. A material or hardware change may help resolve this problem. 288
Chronic Door Separation?
The rear seat (p/n 7-1500; revision B) failed at the left hinge point. The AN3 series bolt pulled through the hinge lugs, which are welded to the seat frame bottom. The right hinge holes show elongation, but remained intact. This aircraft was doing spin training at the time of the incident. Modifying the seat frame to current standards is recommended.
Key Takeaways:
- A Bellanca 8KCAB experienced a rear seat hinge failure during spin training, with modification to current standards recommended.
- The Cessna 172S has a recurring problem with cracks found on the propeller bulkhead, with at least 15 similar reports in the FAA database.
- A Cessna T310Q suffered a nose gear retraction rod-end failure, preventing retraction and leading to a collapsed nose gear upon landing.
- Diamond DA40 aircraft repeatedly reported aft passenger door separation during taxi or takeoff, with hinge cracks found on affected doors.
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