A/T Codes+C-23

Question 1

Action taken code A?

Answer 1

No repair required

Question 2

Action taken code B?

Answer 2

Repair or replacement of items not categorized by a WUC

Question 3

Action taken code C?

Answer 3

Repair of an item that is identified by a WUC

Question 4

Action taken code D?

Answer 4

Work stoppage

Used to closeout a MAF when the repair will be conducted at another facility

Question 5

Action taken code R?

Answer 5

Remove and replace

Same or like item was reinstalled

Question 6

Action taken code S?

Answer 6

Removed and reinstall

Removed only to facilitate other maintenance and same item was reinstalled

Question 7

Action taken code T?

Answer 7

Removed and replaced for cannibalization?

Question 8

Action taken code Y?

Answer 8

Troubleshooting

Used to document time expended on locating a discrepancy

Question 9

Action taken code Z?

Answer 9

Corrosion treatment

Use the WUC of the unit or sub assembly being treated-also to be used for paint and prime

Question 10

Action taken code 0?

Answer 10

Phase and special inspections

PMs, CPs, and depreservation

Question 11

The LBAC consists of what four systems ?

Answer 11

GENSET-generator engine set

Operating controls

Air conditioning systems

Heating systems

Question 12

The LBAC is used to provide what?

Answer 12

Air conditioned, dehumidified or vented ambient air to the aircraft

Question 13

Each compressor system contains what?

Answer 13

One compressor
One condenser
One evaporator
And three condenser fans

Question 14

What provides air conditioning on the C-23?

Answer 14

Three 15ton scroll type,oil charged, variable speed compressors

Question 15

At high speed, each LBAC compressor can output how many tons of air conditioning?

Answer 15

15 tons pr compressor for a total of 45 tons of air conditioning

Question 16

Which compressor is activated first in the LBAC system?

Answer 16

The tertiary compressor
Then secondary
Then primary

Question 17

The expansion valves of the LBAC are located on?

Answer 17

The primary and secondary systems

Question 18

The expansion valves of the LBAC are controlled by?

Answer 18

The programmable logic controller PLC-1

Question 19

What is the electrical output on the LBAC?

Answer 19

3-phase 480vac 60hz @1800rpm

Question 20

What is the tire pressure on the LBAC?

Answer 20

120 psi

Question 21

Engine oil capacity of the LBAC?

Answer 21

7 gallons

Question 22

To dehumidify ambient air properly the LBAC cools the air to ?

Answer 22

40°f then evaporator coils heat up the air to 90°f - this produces outlet air below 30% humidity.

Question 23

MOT -1 of the LBAC is ?

Answer 23

40hp blower motor

Question 24

What is the size of The outlet air duct of the LBAC?

Answer 24

8 inch ring connector duct