185 On behalf of Mr Barclay, it was said that his Honour's apportionment should not be interfered with. It was emphasised that a judgment on a question of apportionment entailed the exercise of a discretion and should not be lightly reviewed. It was submitted that Mr Barclay's degree of departure from the standard of care of a reasonable engineer was not egregious. Although the bearing had a specified life of 1,600 hours, it performed properly for over 80% of its specified life. Mr Barclay submitted that Mr Penberthy's negligence was 'very clearly of a high order of culpability'. Mr Penberthy, it was said, was trained and prepared for an engine failure on take-off and failed to perform his functions. It was submitted that the only realistic choice facing Mr Penberthy, once the engine failed and the aircraft turned left to avoid the powerlines, was to continue to fly in a straight line to gain height. The other alternative, of an immediate return to the airport, was, in effect, unviable. It was submitted that Mr Barclay's conduct presented Mr Penberthy with a manageable emergency, which he negligently failed to manage. In these circumstances, it was said, the relative importance of Mr Penberthy's conduct in causing the damage far exceeded that of Mr Barclay.