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Failure analysis of main landing gear axle of an aircraft

IR@NAL: CSIR-National Aerospace Laboratories, Bangalore

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Title Failure analysis of main landing gear axle of an aircraft
 
Creator Madan, M
Venkataswamy, MA
Sujata, M
Bhaumik, SK
 
Subject Aeronautics (General)
Chemistry and Materials (General)
 
Description Item part No. R35/001-150-35002(A) LH main gear assembly Sl. No. 106L of an aircraft was sent to the laboratory for investigation. The main landing gear axle had fractured at the threaded region resulting in dislodgement of the main wheel assembly. Fractographic examination confirmed that the axle had fractured by torsional overload. The torsional load resulted due to seizure of the front bearing. Evidences suggest that the causative factor for the bearing seizure was high axial loads. The reason for such high axial loads on the bearing needs to be established. The axle material was found to conform to MIL-S-6758 specification.
 
Publisher National Aerospace Laboratories
 
Date 2006
 
Type Proj.Doc/Technical Report
NonPeerReviewed
 
Identifier Madan, M and Venkataswamy, MA and Sujata, M and Bhaumik, SK (2006) Failure analysis of main landing gear axle of an aircraft. Project Report. National Aerospace Laboratories, Bangalore.
 
Relation http://nal-ir.nal.res.in/9871/