Communication is key in this position. You must be able to maintain a strong line of communication between the technician's findings and effectively relaying the repair plan to the customer.
Prioritization is also another key strength. This position requires you to work in a challenging high stress environment which is why prioritizing and planning is essential. It is the difference between being reactive and proactive. Example: The technician runs into unforeseen issues (broken bolts, rusted components, etc.) Although, you have invoices to close, it is imperative to be proactive; communicate this to the customer immediately instead of waiting until the repair should be complete and having to break the news (reactive). Attempt to resolve a potential problem and avoid reacting to a problem that has already escalated.
Continuous Improvement. Constant analyzation of your procedures and self performance always in search of a more efficient way to perform daily tasks and improve yourself.