(r)  
Move the flap control lever to the zero (FLAPS UP) detent.

 (s)  
Make sure the flaps and slats are at the fully retracted position in less than 52 seconds after the flap control lever is moved.

 EFFECTIVITYùùùùùùùùùùùùùùùùùùùùùùùùùùùùùù. ú

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MAINTENANCE MANUAL

 (t)  
Make sure the L and R indicator needles for the flap position are in the tolerance band for the UP-unit position.

 (u)  
Open these circuit breakers on the P11 panel and attach DO-NOT-CLOSE tags: 1) 11C14, FLAP SLAT ELEC UNIT 2 POWER 2) 11H23, FLAP/SLAT ALTN DR SHUTOFF ARM 3) 11H24, FLAP/SLAT ALTN DR SHUTOFF 2

 S 735-047
 (2)  
Do the steps that follow to do a check of the EICAS messages, FLAP/SLAT ELEC and FLAP ISLN VAL:

 (a)  
Make sure the EICAS message, FLAP/SLAT ELEC shows on the status and ECS/MSG display.

 (b)  
Push the arming switch of the alternate drive for the flaps on P3 to arm the flap alternate drive (switch light on).

 WARNING: KEEP PERSONS AND EQUIPMENT AWAY FROM ALL CONTROL SURFACES
_______ WHEN HYDRAULIC POWER IS SUPPLIED. AILERONS, ELEVATORS, RUDDER, FLAPS, SLATS, SPOILERS, AND STABILIZER ARE FULLY POWERED SURFACES. INJURY TO A PERSON OR DAMAGE TO EQUIPMENT CAN OCCUR WHEN HYDRAULIC POWER IS SUPPLIED.
 (c)  
Move the flap control lever to 1-unit detent, and let the flaps and slats stop at the correct position.

 (d)  
Make sure the EICAS message, FLAP ISLN VAL shows on the ECS/MSG and status display after 3 seconds.

 (e)  
Remove the DO-NOT-CLOSE tag and close this circuit breaker on the P11 panel: 1) 11H24, FLAP/SLAT ALTN DR SHUTOFF 2

 (f)  
Erase the EICAS message FLAP ISLN VAL from the ECS/MSG display and make sure the EICAS message FLAP ISLN VAL is off the status display.

 (g)  
Move the flap control lever to the zero (FLAPS UP) detent, and make sure the flaps and slats do not move.

 (h)  
Remove the DO-NOT-CLOSE tag and close this circuit breaker on the P11 panel: 1) 11H23, FLAP/SLAT ALTN DR SHUTOFF ARM

 S 865-162
 (3)  
Open this circuit breaker on the P11 panel and attach DO-NOT-CLOSE tag:

 (a)  
11H24, FLAP/SLAT ALTN DR SHUTOFF 2

 (b)  
Make sure the EICAS message, FLAP ISLN VAL shows on the ECS/MSG and status display after 3 seconds.

 (c)  
Make sure the flaps and slats do not move.

 (d)  
Push the arming switch for the alternate drive of the slats on the P3 panel to arm the slat alternate drive (switch light will come on).

 (e)  
Push the arming switch for alternate drive of the flaps to disarm the flap alternate drive (switch light off).

 EFFECTIVITYùùùùùùùùùùùùùùùùùùùùùùùùùùùùùù. ú

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 ALL  ú ú 09 Page 533 ú Jan 28/01
BOEING PROPRIETARY - Copyright (C) - Unpublished Work - See title page for details.
A

757
MAINTENANCE MANUAL

 (f)  
Make sure the flaps and slats do not move.

 (g)  
Open this circuit breaker on the P11 panel and attach the DO-NOT-CLOSE tag: 1) 11H23, FLAP/SLAT ALTN DR SHUTOFF ARM

 S 735-048
 (4)  Do a check of the bypass valves on the TE flap and LE slat PDU.
 WARNING: KEEP PERSONS AND EQUIPMENT AWAY FROM ALL CONTROL SURFACES
_______ WHEN HYDRAULIC POWER IS SUPPLIED. AILERONS, ELEVATORS, RUDDER, FLAPS, SLATS, SPOILERS, AND STABILIZER ARE FULLY POWERED SURFACES. INJURY TO A PERSON OR DAMAGE TO EQUIPMENT CAN OCCUR WHEN HYDRAULIC POWER IS SUPPLIED.
 (a)  
Move the manual override lever on the bypass valve for the TE flap PDU to the usual position (POS 2) (Fig. 507), and let the flaps retract.

 (b)  
Make sure the slats do not move.

 WARNING: KEEP PERSONS AND EQUIPMENT AWAY FROM ALL CONTROL SURFACES
_______ WHEN HYDRAULIC POWER IS SUPPLIED. AILERONS, ELEVATORS, RUDDER, FLAPS, SLATS, SPOILERS, AND STABILIZER ARE FULLY POWERED SURFACES. INJURY TO A PERSON OR DAMAGE TO EQUIPMENT CAN OCCUR WHEN HYDRAULIC POWER IS SUPPLIED.
　
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