<p>NIR 3432 – Cl170 Bearing Failure Leading to Fire</p>
<ul><li>Cl170 Turbostar bearing failure risk controls are being actively managed. A bearing modification programme is progressing at C4 overhaul and Turbostar operators are monitoring bearing condition via sensors and riding inspectors. Porterbrook is continuing to liaise with TOCs on monitoring arrangements<br /></li><li>Electros	tar bearing monitoring arrangements are under review with GTR. Porterbrook is supporting GTR with the trial of new monitoring sensors</li></ul>