737 Master Caution Recall
Thread Starter
Joined: Jan 2010
Posts: 3
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From: Western Australia
737 Master Caution Recall
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.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
Thanks in advance.
Thread Starter
Joined: Jan 2010
Posts: 3
Likes: 0
From: Western Australia
FD you may be right I only fly the -800,
GPS is the other one thanks Lazy Skip.
and yes just checked PACK and it will indicate that it has reverted to the standby pack controller thanks Scoilistes.
So thats 5 for the classic and 7 for the (NG/800??)
Thanks all
8 Ball
GPS is the other one thanks Lazy Skip.
and yes just checked PACK and it will indicate that it has reverted to the standby pack controller thanks Scoilistes.
So thats 5 for the classic and 7 for the (NG/800??)
Thanks all
8 Ball
