DESIGN, DEVELOPMENT, QUALIFICATION TESTING AND AIRWORTHINESS APPROVAL OF FLAP SWITCH P/N DO228-9196 FOR HAL MANUFACTURED DO-228 AIRCRAFT

摘要

Flap switch is part of flap control system in the DO-228 aircraft. It is installed on central pedestal panel in the cockpit. Flap switch is used to select one of the three flap positions i.e. UP, 1 & 2 in DO-228 aircraft. It consists of three lever positions corresponding to three aircraft flap positions. Flap positions are selected by changing the lever to a corresponding lever position. Flap Switch P/N D9- 102-003 from OEM M/s Valentine GmbH, Germany was being used on HAL produced DO-228 a/c. Due to obsolescence issues fresh indigenous design, development, testing and airworthiness approval of flap switch P/N D0228-9196 for use on HAL produced DO- 228 aircraft was taken up and successfully completed in year 2010. The product meets its functional as well as performance requirements. The tooling and processes were developed by HAL to fabricate, detail parts, sub assemblies and final assembly of the: product. Material. called up in design specifications to fabricate the product is chosen by HAL and qualified to meet end product requirements.