Smiths Aerospace
Electronic Systems – Malvern
DOC NO.0134ED
MAINTENANCE MANUAL SUPPLEMENT
BOEING B737-100/200/300/400/500
28-41-04
19. Depress both “UP” and “DOWN” select buttons simultaneously. The indicator will display “P08” for one
second and eight analog segments will illuminate. After displaying “P08”, the display will change to
show the last entered value.
20. Record parameter P08 value.
21. Depress both “UP” and “DOWN” select buttons simultaneously. The indicator will display “P09” for one
second and nine analog segments will illuminate. After displaying “P09”, the display will change to
show the last entered value.
22. Record parameter P09 value.
23. Add the appropriate offset from the following table to the reading obtained in step 22 and record the
corrected value for parameter P09.
NOTE:
Adding 20 counts is equivalent to adding 2.0 pF. For example if parameter P09 reads
4905 (490.5 pF), then adjust to 4925 (492.5 pF).
Refer to AMM Chapter 28 to verify “Nominal Dry Tank Capacitance”.
Nominal Dry
Nominal Wet
Count to be
Tank
Tank Capacitance
Tank Capacitance
Added to P09
Left/Right
458.2 pfd
962.2 pfd
18
Left/Right
474.2 pfd
991.2 pfd
18
Left/Right
490.6 pfd
1059.4 pfd
20
Left/Right 506.6
pfd
1075.4
pfd
20
Center Integral
164.2 pfd
355.2 pfd
7
Center
180.2 pfd
371.2 pfd
7
Center 1 Cell
129.1 pfd
271.1 pfd
5
Center 1 Cell
145.1 pfd
296.4 pfd
5
Center 2 Cell
188.5 pfd
395.8 pfd
7
Center 2 Cell
204.5 pfd
422.8 pfd
8
Center 3 Cell
164.2 pfd
344.8 pfd
6
Center 3 Cell
219.4 pfd
461.6 pfd
9
Aux
94.5 pfd
203.5 pfd
4
Aux (400 Gal)
110.5 pfd
219.4 pfd
4
Aux (810 Gal)
109.2 pfd
222.4 pfd
4
24. Adjust parameter P09 by pressing the “UP” button to the value obtained in step 23.
25. Depress both “UP” and “DOWN” select buttons simultaneously. The indicator will display “P10” for one
second and ten analog segments will illuminate. After displaying “P10” the display will change to show
the last entered value. Adjust the displayed value to “8600” for all tanks by using the select buttons as
required.
CONFIG
4.2
Page 523
April 19/02
Airplanes with Smiths 2307 Model Fuel Quantity Indicators
with TSU
(SIMMONDS SYSTEM TESTER)
EFFECTIVITY
