Benedetta Margaret Kikechi


My name is Benedetta Margaret Kikechi. I am a Kenyan Citizen, born on 27 November 1977 in Bungoma County. I have a Postgraduate Diploma in Strategic Studies and Bachelor of Science Degree, all from the University of Nairobi. I will graduate on 25 September 2020, after completing my Master of Science studies in Nuclear Science from the University of Nairobi. Currently, I am working as an Aircraft Maintenance officer with specialization in Non-Destructive Inspection techniques hence my area of interest during the Graduate studies’ Research Project. I am a devoted Christian (Catholic). My hobbies are among others; Visiting the Sick, playing Ball games and Team Building Activities. I am married and blessed with Two (2) children.

Project Summary

Evaluation of Effectiveness of Non Destructive Testing Techniques for Inspection of Critical Aircraft Components: A Case of The Kenyan Aviation Industry.

This study evaluated the effectiveness of four types of NDT methods; ultrasonic inspection, radiography, visual testing and magnetic particle inspection being used in aviation industry using aircraft engine and landing gear components to evaluate structural defects during maintenance. This study was motivated by the need to improve our understanding and application of different NDT methods in defect identification in critical aircraft components. 101 aircraft samples were inspected at different NDT Laboratories between July 2017 – April 2019. During this study, the following defects were found; cracks (60%), corrosion (6%), delamination (2%), disbond defects (2%). 29 samples (30%) had no defects. In conclusion, the study identified the structural defects in the aircraft components as; fatigue cracks, corrosion, delamination and disbond defects. The most effective NDT method for use in aircraft routine inspection is boroscopic, with the highest Probability of Detection (POD) at the 95% confidence. Visual inspection by magnifying glass is generally sensitive to larger size defects. MPI method is appropriate in defect detection of both surface and subsurface defects of ferrous materials. The application of UT method was appropriate in detecting subsurface defects. Increasing the frequency of aircraft inspections and further research on corrosion related defects upon approval by Original Equipment Manufacturers are recommended. The results of this study will contribute to improved safety and maintenance that aircraft operate in the tropical climatic conditions hence prone to high rates of wear and tear of components.regime in the aviation industry in Kenya for extended service life considering