(2)  
Access Doors 134AZ Center Tank Access Door (Right) 531AB Center Tank Access Door (Left) 531BB Center Tank Access Door (Left) 531CB Center Tank Access Door (Left) 541AB Main Tank Access Door (Left) 541BB Main Tank Access Door (Left) 541CB Main Tank Access Door (Left) 541DB Main Tank Access Door (Left) 541EB Main Tank Access Door (Left) 541FB Main Tank Access Door (Left) 541GB Main Tank Access Door (Left) 541HB Main Tank Access Door (Left) 541JB Main Tank Access Door (Left) 541KB Main Tank Access Door (Left) 541LB Main Tank Access Door (Left) 541MB Main Tank Access Door (Left) 542AB Main Tank Access Door (Left) 542BB Main Tank Access Door (Left) 542CB Main Tank Access Door (Left) 542DB Main Tank Access Door (Left) 543AB Surge Tank Access Door (Left) 631AB Center Tank Access Door (Right) 631BB Center Tank Access Door (Right) 631CB Center Tank Access Door (Right 641BB Main Tank Access Door (Right) 641CB Main Tank Access Door (Right) 641DB Main Tank Access Door (Right) 641EB Main Tank Access Door (Right) 641FB Main Tank Access Door (Right) 641GB Main Tank Access Door (Right) 641HB Main Tank Access Door (Right) 641JB Main Tank Access Door (Right) 641KB Main Tank Access Door (Right) 641LB Main Tank Access Door (Right) 641MB Main Tank Access Door (Right)

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 28-11-00
 ALL  ú ú 01 Page 603 ú Jun 20/96

A

757 MAINTENANCE MANUAL
 642AB Main Tank Access Door (Right) 642BB Main Tank Access Door (Right) 642CB Main Tank Access Door (Right) 642DB Main Tank Access Door (Right) 643AB Surge Tank Access Door (Right)
 E. Make an Analysis of the Fuel Leak Type
 S 216-077
 (1)  
Fuel leak types: Fuel leakage is divided into four groups to calculate flight safety. The four groups are stain, seep, heavy seep, and running leak. Examine the wet area around the leak source to find the group of the fuel leak. After you examine the leak area, rub the area clean and examine the leak area again. The dimension patterns of fuel leaks specified in Fig. 602 are based on an examination 15 minutes after the leak area was rubbed clean. The four groups of leaks in Fig. 602 are evaluated as follows:

 (a)  
A "stain" is a leak where the wet area is not more than 1 1/2 inches wide after the 15 minute time.

 (b)  
A "seep" is a leak where the wet area is not more than 4 inches wide after the 15 minute time.

 (c)  
A "heavy seep" is a leak where the wet area is not more than 6 inches wide after the 15 minute time.

 (d)  
A "running leak" is a leak where the wet area is more than 6 inches wide after the 15 minute time.
　
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