Originally Posted by
galdian
Had a popped CB been found and a successful reset attempted that might have been the end of the story and a far more comfortable flight for the flightcrew completed.
I appreciate the B737 is an 'antique' in many respects, but at the outfit where I flew (non-B737), resetting a tripped CB in flight was prohibited unless it was part of an FCOM procedure and the consequences of doing so were clearly understood. On some aircraft the systems protected by a CB may not be obvious and resetting a tripped CB might have unintended, serious consequences.