Failure analysis of burst pipe of oxygen charging trolley

Madan, M and Bhuvana, R and Sujata, M and Venkataswamy, MA and Bhaumik, SK (2011) Failure analysis of burst pipe of oxygen charging trolley. Project Report. National Aerospace Laboratories, Bangalore, India.

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Abstract

During routine flight servicing operation on an aircraft in the hanger, the oxygen charging trolley exploded and caught fire. After examination of the wreckage at the accident site, the Board of Inquiry referred a few samples of burst pipelines and hoses to the laboratory for investigation. Examination revealed that the pipelines and the hoses in question have failed by bursting due to sudden rise in pressure. From the evidences on the failed samples and the sequence of events that led to the accident, it appears most probable that the sudden rise in pressure was due to malfunctioning of the pressure regulator valve in the system. In view of this, it is suggested that the pressure regulator valve which controls the oxygen pressure during charging of the aircraft be examined in detail.

Item Type: Proj.Doc/Technical Report (Project Report)
Uncontrolled Keywords: Aircraft oxygen charging trolley;Tube burst
Subjects: AERONAUTICS > Aeronautics (General)
CHEMISTRY AND MATERIALS > Chemistry and Materials (General)
Division/Department: Materials Science Division, Materials Science Division, Materials Science Division, Materials Science Division, Materials Science Division
Depositing User: Ms. Alphones Mary
Date Deposited: 18 Jul 2011 10:31
Last Modified: 18 Jul 2011 10:31
URI: http://nal-ir.nal.res.in/id/eprint/9420

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