B737-300 Grid No

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1 year 3 months ago - 1 year 3 months ago #840 by dynamics
B737-300 Grid No was created by dynamics
for b737-300 some grid locations (Grid No) are associated with Circuit Breaker No.
what does the Grid No mean and how is it used?
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Last edit: 1 year 3 months ago by Mark.

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1 year 3 months ago #841 by Mark
Replied by Mark on topic B737-300 Grid No
I've never really used "grid" from chapter 91.

I looked at my copies of the 737-300/400 and 767-200 chapter 91, "grid" is not mentioned at all.
I'm assuming grid location would be Vertical (letters) and Horizontal (numbers) of each breaker on a particular panel.

From your sheet and one I dug out of a 767 manual.
  
  
 
  
  
 
  


Each breaker has a specific location on each panel. Maintenance Manuals usually call for breakers to be pulled before a task is started. Breaker location is usually mentioned by Panel, Row, and Number.

The pilot's "Red Tab Book" (Emergency Procedures Book) will mention breaker location in the same way.

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