McNaughton v Engineering & Business Services (NSW) Pty Ltd

In the matter of McNaughton versus Engineering & Business Services (NSW) Pty Ltd, the court was called upon to review a workers compensation matter. The applicant, McNaughton, sought to challenge the determination of a 9% Workers Compensation Injury (WPI) for a loss of hearing, attributing it to his constant exposure to noise in his role as a machinist over a period of 53 years. The dispute reached the court after McNaughton, born in 1940, argued that his binaural hearing loss, particularly at a low tone frequency of 0.5kHz, was a result of his prolonged noisy employment.

The legal issues before the court involved determining the adequacy of the reasons provided for the 9% WPI assessment and whether the evidence presented was consistent with the degree of noise exposure McNaughton endured. Specifically, the court had to consider if the evidence supported the conclusion that McNaughton's hearing loss was attributable to his employment and whether the assessment was appropriate given the nature and duration of his exposure to noise.

The court found that the reasons provided for the 9% WPI were inadequate and did not sufficiently account for the evidence of McNaughton's intense exposure to noise over many years. The evidence suggested a significant duration of exposure consistent with his occupational history, leading the court to revoke the Medical Assessment Certificate. The court then issued a fresh certificate, awarding McNaughton an 11% WPI, reflecting a more accurate assessment of his hearing loss in relation to his employment conditions. This decision underscores the importance of thorough and adequate reasoning in workers compensation claims, particularly where occupational noise exposure is a significant factor.