http://www.napbirt.org/schools/schools.htm
But many people are trained through an apprenticeship-type arrangement with a local technician. If you are interested in that, then ask the local technicians in your area. If you are serious, and are keen to make it your career, then you could make it clear to them, perhpas a few times so they know you are keen, and see what arrangement you can come to with them. Choose technicians carefully. There are some who could teach you very little!! Ask local ESTABLISHED teachers and performers for their recommendation until a pattern emerges. Otherwise you may get references that are more an expression of friendship with a repairer, or commissions.
Quite a few, including myself, have taught themselves. A repair technician, to be successful, needs certain attributes such as perseverance and patience, perfectionism, a logical mind, excellent analytical skills, lateral thinking, finger dexterity, hand strength. It is not a job very related to playing music. It is a job of high precision engineering. Being a player helps only to ensure something silly has not been done, such as leaving a spring off, and also to determine with confidence which faults are the player or the instrument design,rather than the instrument.
Expect to have to repair ALL of the woodwinds, and be able to play-test all of them.
