Behind the 8 Ball
7th Jan 2010, 03:07
This is a question about master caution recall after start.
As I recall there are 5 (Classic) and 6 (NG) systems that the annunciator light will extinguish after master caution Recall then Reset after start.
The additional system in the NG is PSEU, and I think Zone Temp applies to both variants. I forget the other 4. Anyone out there care to take a shot or even better point me to a reference?
Extract from the QRH
After engine start and prior to takeoff, illumination of Master Caution
annunciator lights or red and amber caution lights require completion of the appropriate non-normal checklist. In certain cases, amber system monitor lights illuminate during the Master Caution Light recall to inform the Flight Crew of a failure of one element in a redundant system. If system operation is maintained by a second element, the amber system monitor light will extinguish when the Master Caution Light is reset. In these situations, the amber caution light alerts the Flight Crew to the fact that normal system operation will be affected if another element failure occurs. If an amber caution light illuminates during recall, but extinguishes on Master Caution reset, completion of the non-normal
checklist is not required.
Thanks in advance.
As I recall there are 5 (Classic) and 6 (NG) systems that the annunciator light will extinguish after master caution Recall then Reset after start.
The additional system in the NG is PSEU, and I think Zone Temp applies to both variants. I forget the other 4. Anyone out there care to take a shot or even better point me to a reference?
Extract from the QRH
After engine start and prior to takeoff, illumination of Master Caution
annunciator lights or red and amber caution lights require completion of the appropriate non-normal checklist. In certain cases, amber system monitor lights illuminate during the Master Caution Light recall to inform the Flight Crew of a failure of one element in a redundant system. If system operation is maintained by a second element, the amber system monitor light will extinguish when the Master Caution Light is reset. In these situations, the amber caution light alerts the Flight Crew to the fact that normal system operation will be affected if another element failure occurs. If an amber caution light illuminates during recall, but extinguishes on Master Caution reset, completion of the non-normal
checklist is not required.
Thanks in advance.