DAMAGE TO EQUIPMENT TO OCCUR.
(3)
Make sure the left and right fan cowls are closed (Ref 71-11-04/201).
S 985-020
(4)
Hold down the LEFT and RIGHT STALL TEST switches on the P61 panel.
S 285-021
(5)
Make sure you find these conditions:
(a)
The L and R stick shakers shake the columns.
(b)
The Windshear PLI shows on the L and R EADI's.
(c)
The EICAS message WARN ELEX shows.
(d)
All segments of LEFT STALL and RIGHT STALL hex displays come on, on the WEU BITE module (P51).
S 865-022
(6)
Close the circuit breaker below on the P11 panel:
(a)
11J33, WARN ELEX A
S 865-023
(7)
Open this circuit breaker on the P11 panel:
(a)
11B18, WARN ELEX B
S 285-024
(8)
Make sure the stick shakers still shake the columns.
S 985-026
(9)
Release the R STALL TEST switch.
S 285-025
(10)
Make sure you find these conditions:
(a)
The R stick shaker stops.
(b)
The Windshear PLI does not show on the R EADI.
(c)
All segments of the LEFT STALL hex display on the WEU BITE Module (P51) stay on, and the RIGHT STALL hex display shows the code D9.
(11)
Release the L STALL TEST switch.
S 985-025
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757
MAINTENANCE MANUAL
S 285-027
(12)
Make sure you find these conditions:
(a)
The L stick shaker stops.
(b)
The Windshear PLI does not show on the L EADI.
(c)
The LEFT STALL and RIGHT STALL hex displays on the WEU BITE Module show the code 4F.
S 865-117
(13)
Close this circuit breaker on the P11 panel:
(a)
11B18, WARN ELEX B
S 285-179
(14)
Make sure the EICAS message WARN ELEX does not show.
G.
Do a Test of the Stall Warning System Interface
S 285-026
(1)
Make sure the Captain's and First Officer's IRS Source Select switches are in the usual position (ALTN legend is not displayed).
S 985-027
(2)
Put the L, C, and R IRS Mode Select switches in the OFF position.
S 285-028
(3)
Make sure the LEFT and RIGHT STALL hex displays on the WEU BITE Module (P51) show the code D6.
S 985-029
(4)
Put the Left and Right IRS Mode Select switches in the NAV position, and wait until the Left and Right IRS ALIGN lights are OFF.
S 285-030
(5)
Make sure the LEFT and RIGHT STALL hex displays on the WEU BITE Module (P51) show the code 4F.
NOTE: It can be up to 10 seconds before the code is shown.
____
S 985-033
(6)
Put the Captain's IRS Source Select switch in the ALTN position.
S 285-032
(7)
Make sure the LEFT STALL hex display on the WEU BITE Module (P51) shows the code D6.
S 985-036
(8)
Put the CENTER IRS Mode Select switch in the NAV position, and wait until the CENTER IRS ALIGN light is OFF.
EFFECTIVITYùùùùùùùùùùùùùùùùùùùùùùùùùùùùùù. ú
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ALL ú ú 02A Page 511 ú Sep 20/98
BOEING PROPRIETARY - Copyright (C) - Unpublished Work - See title page for details.
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