A Reliable Method for Troubleshooting Aircraft Idle Parking Faults

Abstract

The present invention introduces a method for eliminating the slow parking failure of the aircraft with high reliability, and solves the slow parking failure of the Cirrus SR20 aircraft. For the purpose of reducing the influence of the auxiliary pump on the main pump, optimize the setting of the best reference operating point of the engine under normal idle conditions; for the purpose of real-time control of engine performance, the comprehensive performance of the aircraft-engine fuel system in operation practice Conduct monitoring checks. The invention can conveniently monitor the deviation of the reference working point of the main pump, and control the performance of the engine in real time; the parameters are set according to the evidence, and the troubleshooting and replacement of parts are targeted, which improves the reliability of troubleshooting the SR20 aircraft's idle parking failure.

Description

technical field [0001] The invention relates to an aircraft maintenance technology, in particular to a method for eliminating the slow parking failure of an aircraft with high reliability, and more particularly to a method for eliminating the slow parking failure of a Cirrus SR20 aircraft. Background technique [0002] The SR20 aircraft produced by Cirrus Design Company of the United States is known as the "BMW in the air". It adopts the composite material structure of the whole aircraft and is equipped with a parachute system. Wide range of applications, Cirrus's SR series aircraft has more than 6,000 aircraft in the world. [0003] The Cirrus SR20 aircraft is equipped with the IO-360-ES aviation piston engine produced by the American TCM company. During operation, the engine often fails to stop at idle on the ground. Come a lot of psychological pressure. [0004] There are two fuel supply pumps in the Cirrus SR20 aircraft and engine fuel system. One is the electric fuel...

AI Technical Summary

Problems solved by technology

Idle parking is an inherent failure of Cirrus SR20 aircraft. Although the number of Cirrus SR series aircraft in the world has exceeded 6,000, this problem has not been effectively solved for many years; TCM, as a global aviation piston engine manufacturing company, its The product is not uniquely used on Cirrus SR series aircraft, and mostly uses engine fuel injection systems with similar principles, but TCM has not revealed the mechanism of frequent idle stop failures during engine operation

Due to the unknown cause of the failure, frequent engine slow-down failures in operation practice have brought huge psychological pressure to the pilots, and maintenance technicians can only replace a large number of related components of the fuel system on the failed engine, which has brought huge manpower and material resources. loss, but also bring greater flight safety risks

However, the failure mechanism is not clear, and it is difficult to carry out risk assessment on the probability of engine parking in the air. Based on safety considerations, the airworthiness supervision department of the government suspended its SR20 fleet in response to the frequent engine ground slow parking of the SR20 fleet of an aviation operation unit. operation until effective measures are taken

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