I'd like to get some information regarding performing maintenance tasks in a hangar (under heavy maintenance conditions) as apposed to performing them on the line. For instance:
1. Routine Maintenance - Operational or Functional Checks
2. Modifications - Service Bulletin embodiment
The reason I ask is that I have not a lot of experience with this type of work, however it is something I would possibly like to experience in the future. You may assume (from my user name) that I have some experience with manufacturers maintenance documentation.
I have seen invoices for maintenance performed on checks, and the numbers sometimes don't add up. Don't get me wrong, I do know that hangar maintenance moves at a different pace than line maintenance, but how do you know when people are taking the p*ss?
For instance, a 20 minute battery change can cost an hour in the hangar. Do they charge you for the person going to the stores, taking the part to the aircraft, changing the part, returning the old part to stores etc?
Likewise, a 40 minute component change and function check can cost up to 2 man hours work in a hangar!
Service Bulletins - Do all hangars apply a 'factor' to the manufacturers recommended time for embodiment? Is 1.5 the norm?
Sorry if the question is a little naive, but I'd like to have some insight into the whole commercial side of how it's all managed and agreed.
