MAP-01-011 HFI Technical Guide - Human Factors Integration ...

Chapter 16 – Maintenance and SupportHFI Technical IssuesFigure 16-4: Access to equipment for maintenance can be a concern16.1.5 Maintenance Tools and Job AidsMaintenance-support technology is advancing rapidly with the emergence ofelectronic documentation, computer-assisted diagnosis and repair software, theuse of synthetic displays for maintenance tasks and personal head-up displays toprovide immediate access to each of these support facilities at maintenancepoints. The design of this technology needs to take into account the skills,knowledge and other characteristics of available manpower e.g. reading level.Basic anthropometric (body size and strength) and visual and auditorycapabilities and limitations also need to be considered in the design of tools andjob aids.16.1.6 Maintenance DesignConsideration of the HFI aspects of maintenance design should be carried out inconjunction with the ILS Manager (ILSM). The following design issues havebeen raised from interviews with serving personnel (see ‘HF Design IssuesWithin Submarine CS’ [Ref 20]):• There are problems with the allocation of jobs to personnel. Should therebe operator-maintainers or maintainer-operators for the equipment?• Equipment reliability needs to be considered when in a state of highreadiness. Failures requiring maintenance often appear after eight hourson some current equipment.• If manpower is reduced to too low a level, the maintainers may makedemands on operators when they are required for other duties.• Operator and maintainer tasks are carried out in series not in parallel. Sothere is little problem for such tasks as repair and replace.Nov 2006 Page 16-7 Issue 4