(b)  
11B21, FIRE DETECTION L ENGINE 2

 S 865-020
 (6)
Connect a jumper wire between the two terminals on each of these switches which are installed on the No. 1 strut upper spar.

 (a)  
S10194

 (b)  
S10198

 (7)  
Push the ECS MSG switch on the EICAS maintenance panel.

 S 755-022

 (8)  
Make sure these indications occur:

 (a)  
The L ENG OVHT light on the pilots aft control stand, P8, comes on.

 (b)  
The EICAS message L ENG OVHT shows on the top display.

 (c)  
The EICAS messages L STRUT OH DET 1 and L STRUT OH DET 2 show on the bottom display.

 (d)  
The caution annunciation is heard.

 (e)  
The master CAUTION lights, on P7, come on.

 S 865-021
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MAINTENANCE MANUAL

 S 035-023
 (9)  
Remove the jumpers from the terminals.

 S 755-024

 (10)
 Make sure the indications stop.

 S 435-025

 (11)
 Connect a jumper wire between the two terminals on each of these switches installed on the No. 1 strut upper spar.

 (a)  
S10195

 (b)  
S10197

 S 755-026
 (12) Make sure these indications occur:
 (a)  
The L ENG OVHT light, on P8, comes on.

 (b)  
The EICAS message, L ENG OVHT, shows on the top display.

 (c)  
The EICAS messages L STRUT OH DET 1 and L STRUT OH DET 2 show on the bottom display.

 (d)  
The caution annunciation is heard.

 (e)  
The master CAUTION lights, on P7, come on.

 S 035-027
 (13)
 Remove the jumpers from the terminals.

 S 755-028

 (14)
 Make sure the indications stop.

 S 435-030

 (15)
 Connect a jumper between the two terminals on each of these switches installed on the engine rear mount bulkhead of No. 1 strut.

 (a)  
S10196

 (b)  
S10199

 S 755-031
 (16)
 Make sure these indications occur:

 (a)  
The L ENG OVHT light, on P8, comes on.

 (b)  
The EICAS message L ENG OVHT shows on the top display.

 (c)  
The EICAS messages L STRUT OH DET 1 and L STRUT OH DET 2 show on the bottom display.

 (d)  
The caution annunciation is heard.

 (17)
 Remove the jumpers from the terminals.

 (18)
 Make sure these indications stop:

 S 865-034

 (19)
 Push and hold the ENG test switch on the pilots aft control stand, P8.

 S 035-032
 S 755-033
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A
757
MAINTENANCE MANUAL

 S 865-065
 (20) Make sure these indications occur:
 (a)  
The L ENG OVHT light comes on (on P8).

 (b)  
The EICAS message L ENG OVHT shows on the top display.

 (c)  
The EICAS messages L STRUT OH DET 1 and L STRUT OH DET 2 show on the bottom display.

 (d)  
The caution annunciation is heard.

 (e)  
The master CAUTION lights, on P7, come on.

 S 755-035
 (21)
 Release the ENG test switch and make sure the indications stop.

 S 865-036

 (22)
 Open these circuit breakers on the P11 panel and attach DO-NOT-CLOSE tags:

 (a)  
11B20, FIRE DETECTION L ENGINE 1

 (b)  
11B21, FIRE DETECTION L ENGINE 2
　
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