757 MAINTENANCE MANUAL
S 285-037
(9) Make sure the LEFT STALL hex display on the WEU BITE Module (P51) shows the code 4F.
NOTE: It can be up to 10 seconds before the code is shown.
____
S 985-041
(10)
Put the Captain's IRS Source Select switch in the usual position (ALTN legend is not displayed).
S 985-150
(11)
Put the CENTER IRS Mode Select switch in the OFF position.
S 985-138
(12)
Put the First Officer's IRS Source Select switch in the ALTN position.
S 285-139
(13)
Make sure the RIGHT STALL hex display on the WEU BITE Module (P51) shows the code D6.
S 985-140
(14)
Put the CENTER IRS Mode Select switch in the NAV position, and wait until the CENTER IRS ALIGN light is OFF.
S 285-141
(15)
Make sure the RIGHT STALL hex display on the WEU BITE Module (P51) shows the code 4F.
NOTE: It can be up to 10 seconds before the code is shown.
____
S 985-149
(16)
Put the First Officer's IRS Source Select switch in the usual position (ALTN legend is not displayed).
S 865-042
(17)
For the Left Stall Warning System, open these circuit breakers on the P11 panel:
(a)
11A10, AIR DATA CMPTR LEFT
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757 MAINTENANCE MANUAL
(b)
11C11, STICK SHAKER LEFT
(c)
11C16, FLAP SLAT ELEC UNIT 2 SENSOR
S 285-049
(18)
Make sure the left hex display on the WEU BITE Module (P51) shows code D0, or cycles between the codes D0 and D1.
S 865-048
(19)
Close this P11 panel circuit breaker:
(a)
11C11, STICK SHAKER LEFT
S 285-047
(20)
Make sure the LEFT STALL hex display on the WEU BITE Module shows the code D1.
S 865-046
(21)
Close this circuit breaker on the P11 panel:
(a)
11A10, AIR DATA CMPTR LEFT
S 285-045
(22)
Make sure the LEFT STALL hex display on the WEU BITE Module shows the code D2.
S 865-044
(23)
Close this circuit breaker on the P11 panel:
(a)
11C16, FLAP SLAT ELEC UNIT 2 SENSOR
S 285-180
(24)
Make sure the LEFT STALL hex display on the WEU BITE Module shows the code 4F.
S 485-056
(25)
Attach probe A of the ARNIC 429 Data Bus Analyzer to Burndy block Z104, TB205 on the E2-3 shelf, and attach probe B to Burndy block Z103, TB205 on the E2-3 shelf (WDM 34-46-12).
(26)
Set the analyzer to decode label 270.
(27)
Make sure that BIT 15 = 0 (GND MODE).
S 985-057
S 285-058
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WARNING: PREPARE THE SAFETY-SENSITIVE SYSTEMS FOR THE AIR MODE BEFORE
_______ YOU OPEN THE AIR/GROUND CIRCUIT BREAKERS. IN THE AIR MODE, MANY OF THE AIRPLANE SYSTEMS CAN OPERATE AND CAUSE INJURIES TO PERSONS AND DAMAGE TO EQUIPMENT.
(28)
Prepare the safety-sensitive systems for air mode simulation (Ref 32-09-02/201).
S 865-060
(29)
Open this circuit breaker on the P11 panel:
(a)
11C30, LANDING GEAR POS AIR/GND SYS 1
S 285-061
(30)
Make sure that BIT 15 = 1, then close the circuit breaker.
S 285-062
(31)
Make sure that BIT 15 = 0 (GND MODE).
S 865-063
(32)
Open this circuit breaker on the P11 panel:
(a)
11S15, LANDING GEAR AIR/GND SYS 1
