(No Computed Data). NCD is a satisfactory output and is not an indication of a FMCS malfunction.
S 285-225
(4) Push the LSK adjacent to <INDEX to show the FMCS BITE 1/1 page.
J. FMC Fixed Outputs Test
S 715-093
(1)
Do the preparation test in this task: "Operational Test - FMCS" if it is necessary.
S 285-226
(2)
Do these steps to prepare for the fixed outputs test:
(a) Make sure that the CDU display shows the FMCS BITE 1/1 page.
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(b)
(c)
(d)
(e)
(f)
(g)
(h)
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737-300/400/500MAINTENANCE MANUAL
If the CDU display does not show the FMCS BITE 1/1 page, do as follows: 1) Push the INIT REF key on the CDU front panel to show the
POS INIT or PERF INIT page. 2) Push the LSK adjacent to <INDEX to show the INIT REF INDEX 1/1 page. 3) Push the LSK adjacent to MAINT> to show the MAINT BITE INDEX 1/1 page. 4) Push the LSK adjacent to <FMCS to show the FMCS BITE 1/1
page.Push the LSK adjacent to <FIXED OUTPUTS to show the FMCS FIXED OUTPUTS 1/3 page.Make sure the outputs on the FMCS FIXED OUTPUTS 1/3 page are
the same as the outputs shown below:
N1 LIMIT 90%
FMA CRZ ON
CLB OFF
REDUCED OFF
CON OFF
TO OFF
GA OFF
FMC ON
Make sure the N1 indicator on the Captain's and the First
Officer's instrument panel (P2) shows the N1 at 90%.
Make sure the N1 limit annunciators come on in the same
sequence shown on the CDU display.
Push the NEXT PAGE key on the CDU panel to show the FMCS FIXED
OUTPUTS 2/3 page.
Make sure the outputs on the FMCS FIXED OUTPUTS 2/3 page are
the same as the outputs shown below:
VOR/DME 108.00 HSI-DESIRED TK 37.5° HSI TRACK 22.25° HSI-DRIFT ANGLE 11.25° HSI GROUND SPEED 200 HSI-DIS TO NX WPT 388 HSI-TO/FROM TO HSI-ALERT ALERT
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A 737-300/400/500MAINTENANCE MANUAL
(i) Make sure the frequency on the Captain's and the First Officer's VHF NAV panels (P8) is 108.00.
NOTE:____ You can find the VHF NAV panels on the aft electronic panel (P8).
(j) Make sure the HSIs on the instrument panels (P1 and P3) show the same values as on the FMCS FIXED OUTPUTS 2/3 page.
NOTE:____ Ignore the track display on the HSI. value is from the IRS. The HSI track
(k) (l) Push the NEXT PAGE key on the CDU to show the FMCS FIXED OUTPUTS 3/3 page.Make sure the outputs on the FMCS FIXED OUTPUTS 3/3 page are the same as the outputs shown below:
HSI-XTK DEV HSI-VERT DEV AIRSPEED-TARGET RIGHT 1 NMLOW 200 FT200 KT
CDU-MSG FAIL ONON
(m) Make sure the HSIs on the captain and first officer show the same values as on the FMCS FIXED OUTPUTS 3/3 page.
NOTE:____ 1 NM is shown on the HSI as 1/2 dot.
200 feet of VERT DEV is shown on the HSI as 1/2 dot.
(n) The Mach/Airspeed indicator can not show the AIRSPEED TARGET of 200 Kts.
NOTE:____ The DFCS prevents the operation of the Mach/Airspeed indicator when the airplane is on the ground.
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737-300/400/500MAINTENANCE MANUAL
(o)
Make sure the FAIL and MSG annunciators on the CDU are on.
