(2)
 Open the access door 192MB.

 Magnetic Level Indicators (MLI)
 Figure 306/TASK 12-11-28-991-009

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 Magnetic Level Indicators (MLI)
 Figure 306A/TASK 12-11-28-991-009-A 
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 1  1
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 Attitude Monitor
 Figure 307/TASK 12-11-28-991-011

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 Subtask 12-11-28-860-066
 D. Aircraft Maintenance Configuration
 (1) Find and write down the aircraft attitude figure (pitch and roll data) as follows:
 -read the aircraft attitude (grid square letter and grid square number) shown by the bubble on the attitude monitor 39QM or
 -
use the ADIRU to find the aircraft attitude figure (Ref. TASK 12-11-28-860-001) or

 -
use the FQIC input parameters to find the aircraft attitude figure (Ref. TASK 12-11-28-860-002).

R **ON A/C 106-149, 214-299, 301-399, 401-499,
 Subtask 12-11-28-860-066-A
 D. Aircraft Maintenance Configuration
 (1) Find and write down the aircraft attitude figure (pitch and roll data) as follows:
 -
use the ADIRU to find the aircraft attitude figure (Ref. TASK 12-11-28-860-001) or

 -
use the FQIC input parameters to find the aircraft attitude figure (Ref. TASK 12-11-28-860-002).

 **ON A/C ALL
 4. Procedure
_________
R **ON A/C 001-049, 051-099, 101-149, 151-199, 201-299, 401-499,
 (Ref. Fig. 306/TASK 12-11-28-991-009)
 **ON A/C 301-399,
 (Ref. Fig. 306A/TASK 12-11-28-991-009-A)

 **ON A/C 001-049, 051-099, 101-105, 151-199, 201-213,

 (Ref. Fig. 307/TASK 12-11-28-991-011)
R **ON A/C 001-049, 051-099, 101-149, 151-199, 201-299, 401-499,
 Subtask 12-11-28-869-053
 A. Use of the Magnetic Level Indicators (MLI)
 (1)
 Use the flow chart and do these steps: (Ref. Fig. 308/TASK 12-11-28-991-012, 309/TASK 12-11-28-991-024)

 (a)
 Use a screwdriver to push the applicable MLI and turn it through 90 deg.

 (b)
 Hold and carefully lower the MLI fully. Then carefully lift the MLI until you feel the magnets engage.

 (c)
 Read the units mark nearest to the bottom-skin of the wing and write down the number.

 (2)
 Retract the MLI and use a screwdriver to turn it through 90 deg. to lock it.

 (3)
 Find the volume of fuel in each tank as follows:

 (a) Use the applicable MLI stick number and the applicable aircraft attitude grid-square letter to find the correct fuel quantity table.
 NOTE : For a grid reading of C3:
____
 -
use the attitude monitor reading CLEFT WING column 3 for the LH wing

 -
use the attitude monitor reading CRIGHT WING column 3 for the RH wing.

 (b) Find the applicable MLI unit number row and the applicable aircraft attitude (grid-square letter and number) row in the table. Find the intersection of the applicable rows to give the correct volume of fuel in the tank.
 NOTE : Only even number MLI units are listed in the tables. To
____ calculate the volume of fuel for uneven numbers, interpolate between the nearest even numbers in the table.
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 How to Read a Wing Tank MLI
 Figure 308/TASK 12-11-28-991-012

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 How to Read a Wing Tank MLI
 Figure 308A/TASK 12-11-28-991-012-A 
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 How to Read the CTR MLI Figure 309/TASK 12-11-28-991-024 
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 Example: MLI stick No. 1 (LH Wing)
 UNIT reading  : 36
 Pitch and Roll attitude  : C3 on (attitude monitor)
 Fuel Quantity table reading (volumn)  : 1150 liters
 Specific gravity (SG) of fuel sample  : 0.81 SG
 Actual fuel mass at 0.81 SG  = 1150 x 0.81 = 931.5
　
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