27-23-00
 ALL  ú ú 01 Page 506 ú Dec 20/93
BOEING PROPRIETARY - Copyright (C) - Unpublished Work - See title page for details.
A

757 MAINTENANCE MANUAL
 F. Put the Airplane Back to Its Usual Condition
 S 095-016
 WARNING: USE THE PROCEDURE TO AMM 32-00-15 TO REMOVE THE DOOR LOCKS.
_______ THE DOORS OPEN AND CLOSE QUICKLY AND CAN CAUSE INJURY TO PERSONS OR DAMAGE TO EQUIPMENT.
 (1)  Remove the door locks from the landing gear doors and close the doors (Ref 32-00-15).
 S 095-018
 WARNING: STAY AWAY FROM THE NOSE WHEELS WHEN THE LOCKPIN IS REMOVED.
_______ THE WHEELS CAN TURN TO THE CENTER POSITION QUICKLY, AND CAN CAUSE INJURY TO PERSONS AND DAMAGE TO EQUIPMENT.
 (2)  
Make sure the nose wheels are in their center position and remove the towing lever lockpin from the nose gear.

 S 215-019

 (3)
Make sure these circuit breakers on the P11 panel are closed:

 (a)  
11H17, FLT CONT SHUTOFF TAIL LEFT

 (b)  
11H18, FLT CONT SHUTOFF TAIL CTR

 (c)  
11H28, FLT CONT SHUTOFF TAIL RIGHT

 S 865-020
 (4)  
Move the FLT CONTROL SHUTOFF switches L, C, and R on the P61 panel to ON.

 S 865-021

 (5)
Remove electrical power if it is not necessary (Ref 24-22-00).

 TASK 27-23-00-735-022
 3. Rudder and Elevator PCA Monitoring - System Test
________________________________________________
 A. Equipment
 (1)  
Nose Gear Towing Lever Lockpin - A09003-1

 B.
References

 (1)  
24-22-00/201, Electrical Power - Control

 (2)  
27-61-00/201, Spoiler/Speedbrake Control System

 (3)  
29-11-00/201, Main (Left, Right, and Center) Hydraulic Systems

 (4)  
32-09-02/201, Air/Ground Relays

 C.
Access

 (1)  
Location Zones
 211/212 Control Cabin

 EFFECTIVITYùùùùùùùùùùùùùùùùùùùùùùùùùùùùùù. ú

 27-23-00
 ALL  ú ú 01 Page 507 ú Sep 28/01
BOEING PROPRIETARY - Copyright (C) - Unpublished Work - See title page for details.
A

757 MAINTENANCE MANUAL
 D.  Prepare for the Test
 S 865-023
 (1)  
Supply electrical power (Ref 24-22-00).

 S 865-049

 (2)  
Move the towing lever on the metering valve module to the tow position and install the towing lever lockpin in the nose gear (Fig. 502).

 S 865-024
 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 PERSONS OR DAMAGE TO EQUIPMENT CAN OCCUR WHEN HYDRAULIC POWER IS SUPPLIED.
 (3)  
Supply pressure to the left, right, and center hydraulic systems (Ref 29-11-00).

 S 215-025

 (4)  
Make sure these circuit breakers on the overhead panel, P11, are closed:

 (a)  
11A10, AIR DATA CMPTR LEFT

 (b)  
11A11, AIR DATA AOA SENSOR LEFT

 (c)  
11A12, AIR DATA BARO CORRECT LEFT

 (d)  
11C30, LANDING GEAR POS SYS 1

 (e)  
11F30, AIR DATA CMPTR RIGHT

 (f)  
11F31, AIR DATA AOA SENSOR RIGHT

 (g)  
11F32, AIR DATA BARO CORRECT RIGHT

 (h)  
11J10, PCU MON SENSOR

 (i)  
11J11, PCU MON MOD

 (j)  
11S15, AIR/GND SYS 1

 (k)  
11S19, AIR/GND SYS 2

 (l)  
11S23, POS SYS 2

 E.  
Rudder and Elevator PCA Monitoring System - Test (Fig. 503)

 S 865-048
 (1)  
Do these steps to erase the EICAS memory:

 (a)  
Push the ECS/MSG switch on the right side panel, P61, and do this check: 1) Make sure the ECS/MSG format comes into view.

 (b)  
Push the AUTO - EVENT READ switch and do this check:

 1)  Make sure the AUTO EVENT display comes into view at the bottom of the page.
 EFFECTIVITYùùùùùùùùùùùùùùùùùùùùùùùùùùùùùù. ú
　
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