What was found
BOI- WHEN ATTEMPTING TO HOOK UP GROUND POWER SMOKE APPEARED FROM RIGHT PANEL BEHIND FIRST OFFICER. REMOVED AND REPLACED EXTERNAL GROUND POWER CONTROL UNIT. OPERATIONAL CHECKS GOOD. AIRCRAFT RETURNED TO SERVICE.
As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
BOI- WHEN ATTEMPTING TO HOOK UP GROUND POWER SMOKE APPEARED FROM RIGHT PANEL BEHIND FIRST OFFICER. REMOVED AND REPLACED EXTERNAL GROUND POWER CONTROL UNIT. OPERATIONAL CHECKS GOOD. AIRCRAFT RETURNED TO SERVICE.