Hi,
I just sent my 9CAP to Futaba for warrantee work and i just got it back. They said they fixed bad solder joints, retuned it, and did everything else normal for a check up and said it was all okay. My question is did the bad solder joints actually cause my problem? (The problem was that Every once in a while the airplane would pitch down really sharply, and at that point i would land the plane just to make sure.) So could bad solder joints actually have been the culprit, or should i look elsewhere to find my problem. Thanks.

Adam