Coastie John wrote:
Anyway.....a question for the civilian mechs after reading this thread because I'm not sure if I was reading a couple of posts correctly.. Are some IA's inspecting their own maintenance work?
Thanks....John
Yes
A&Ps can perform most tasks.
An IA is required to return a part or aircraft to service after a major repair or alteration, (which could be performed by the same guy or some one else) and an IA must inspect and sign off an annual inspection. Again the same IA can perform any other maintenance or work on the same aircraft.
The FARs specify what is required. There isn't any rule about signing off your own work in this way.
Let's say a T-6 ground loops on a landing as an example. The outer aileron attach fittings are ground down. The L/H wingtip is damaged. The outboard rib of the L/H wing is damaged where the aileron attach mounts. Both the upper skin and lower skin have some wrinkles and the aileron is bent.
You replace the aileron with a NOS unit. The same with the wing tip. You get an outboard aileron attach that is used and replace the bearing in it. The rib requires repair IAW the structural repair manual in which you add a reinforcement that is longer than 6 inches. The upper skin is replaced but the lower skin is reused after drilling apart and straightening several stringers.
The replacement of the wing tip, aileron installation, outboard aileron attach, rigging require the A/P. The sheet metal work requires an A&P to perform the work but an IA to sign off the Form 337. This signoff means you inspected the work and it was done IAW all approved instructions which consist of AC 4313-1B and the Structural Repair Manual.
(And I know any fabric installed under a STC will require an IA to sign off the 337, Just using the Ground loop repair as an illustration).
Please tell me where there is a problem with researching and performing the sheet metal work as an A&P and then the same person signing off the work as an IA?
Many shops are FAA approved Repair Stations and there is a whole different set of rules that apply to them. Also repair work can be done by the manufacturer and there are even different rules that apply there.
Your concern of the same person signing off their own work probably would not be allowed by a repair station or manufacturer. Those larger and more structured organizations would be a closer match for the CG than the A&P/IA.