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| Thursday, September 13, 2007 |
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NTSB Safety Recommendations A-07-52 through -54
By FlyingNews @ 11:14 AM :: 190 Views ::
0 Comments :: NTSB
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The National Transportation Safety Board recommends that the Federal Aviation Administration:
Require Cessna to modify the Citation 525 to incorporate an aural trim-in-motion warning and the addition of contrasting color bands on the pitch trim wheel to provide the pilot with more timely recognition of a trim runaway condition before control forces become unmanageable. (A-07-52)
Require Cessna to perform analysis and conduct a test to demonstrate that the maximum control forces in a Cessna Citation 525 meet the certification requirements of 14 Code of Federal Regulations Part 23 during a pitch trim runaway condition. The analysis and test should comply with the pilot-recognition time requirements provided in Advisory Circular 23-8, "Flight Test Guide for Certification of Part
23 Airplanes." If, after accomplishing the analysis and test, Cessna is unable to demonstrate that the Citation 525 meets the certification requirements, require Cessna to take corrective action so that the airplane does meet certification requirements. (A-07-53)
Require Cessna to replace the pitch trim circuit breaker on the Citation 525 with a collared circuit breaker to aid the pilot in quickly identifying it if necessary. (A-07-54)
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