Installation of the Thrust Reverser Actuator System (TRAS) Track Lock [PW11]

A. Installation of the TRAS Track Lock
   (1) Removal of the protection covers
     (a) Make sure that you remove all the necessary COVER - PROTECTION to prevent damage to the engine.
   (2) Installation of the TRAS track lock (1) on the left thrust reverser door
     (a) Put the TRAS track lock (1) in position in the latch beam.

PRE SB GRAA320NEO A-78-30-0005-00001-930A-D

     (b) Do the following:
       1 Attach the TRAS track lock (1) to the latch beam with the three bolts (6) and the three washers (5).
       2 TORQUE the bolts (6) to between 90 and 81 lbf.in (1.02 and 0.92 m.daN ) .

END OF PRE SB GRAA320NEO A-78-30-0005-00001-930A-D

POST SB GRAA320NEO A-78-30-0005-00001-930A-D

     (c) Do the following:
       1 Attach the TRAS track lock (1) to the latch beam with the two bolts (6) and the two washers (5).
       2 Attach the TRAS track lock (1) and the pin guard (7) to the latch beam with the bolt (6).
       3 TORQUE the bolts (6) to between 90 and 81 lbf.in (1.02 and 0.92 m.daN ) .

END OF POST SB GRAA320NEO A-78-30-0005-00001-930A-D

     (d) Clean the bolt (4), washers (2) and (3), grounding strap lug and the mating surface of the TRAS track lock (1) with a clean cloth (Material No.PU1-0001) made moist with acetone (Material No.PU2-0002) or equivalent (Ref. AMM TASK 70-30-00-918-803).
     (e) Remove the acetone (Material No.PU2-0002) with a dry, clean cloth (Material No.PU1-0001) before the solvent becomes dry.
     (f) Attach the grounding strap lug and the TRAS track lock (1) on the latch beam with the bolt (4) and the washers (2) and (3).
     (g) TORQUE the bolt (4) to between 90 and 81 lbf.in (1.02 and 0.92 m.daN ) .
     (h) Make sure that the resistance between the grounding strap lug and the TRAS track lock (1) is 0.0100 ohm or less. If the resistance is too high, remove the bolt (4), washers (2) and (3) and grounding strap lug and do Steps 4.A.(2).(g) thru 4.A.(2).(k) again.
     (i) Remove the CAP - BLANKING from the control tube, aft return tube, return tube and TRAS track lock (1).
     (j) Apply a thin layer of lubricant (Material No.PU6-0003) to the threads of the control tube, aft return tube and return tube fittings.
     (k) Connect the control tube to the TRAS track lock (1).
     (l) TORQUE the fitting on the control tube to between 245 and 215 lbf.in (2.77 and 2.43 m.daN ) .
     (m) Connect the aft return tube to the TRAS track lock (1).
     (n) TORQUE the fitting on the aft return tube to between 190 and 170 lbf.in (2.15 and 1.92 m.daN ) .
     (o) Connect the return tube to the TRAS track lock (1).
     (p) TORQUE the fitting on the return tube to between 190 and 170 lbf.in (2.15 and 1.92 m.daN ) .
     (q) Remove the CAP - PROTECTION from the left TRAS monitoring harness connectors (4038KS-A) and (4046KS-A) and the TRAS track lock (1).
     (r) Connect the connectors as follows:
       1 Connect the left TRAS monitoring harness (4038KS-A) and (4046KS-A) to the TRAS track lock (1).
       2 Tighten the connectors with your fingers.
       3 Then tighten the connectors 1/8 to 1/4 of a turn more with PLIERS - NOSE, SOFT, LONG (Ref. AMM TASK 78-31-61-400-811).
     (s) Install the track lock cover (2) (Ref. AMM TASK 78-32-38-400-801).
   (3) Installation of the TRAS track lock (11) on the right thrust reverser
     (a) Put the TRAS track lock (11) in position in the latch beam.

PRE SB GRAA320NEO A-78-30-0005-00001-930A-D

     (b) Do the following:
       1 Attach the TRAS track lock (11) to the latch beam with the three bolts (13) and the three washers (12).
       2 TORQUE the bolts (13) to between 90 and 81 lbf.in (1.02 and 0.92 m.daN ) .

END OF PRE SB GRAA320NEO A-78-30-0005-00001-930A-D

POST SB GRAA320NEO A-78-30-0005-00001-930A-D

     (c) Do the following:
       1 Attach the TRAS track lock (11) to the latch beam with the two bolts (13) and the two washers (12).
       2 Attach the TRAS track lock (11) and the pin guard (17) to the latch beam with the bolt (13).
       3 TORQUE the bolts (13) to between 90 and 81 lbf.in (1.02 and 0.92 m.daN ) .

END OF POST SB GRAA320NEO A-78-30-0005-00001-930A-D

     (d) Clean the bolt (16), washers (14) and (15), grounding strap lug and the mating surface of the TRAS track lock (11) with a clean cloth (Material No.PU1-0001) made moist with acetone (Material No.PU2-0002) or equivalent (Ref. AMM TASK 70-30-00-918-803).
       1 Remove the acetone (Material No.PU2-0002) with a dry clean cloth (Material No.PU1-0001) before the solvent becomes dry.
     (e) Attach the grounding strap lug and the TRAS track lock (11) to the latch beam with the bolt (16) the and washers (14) and (15).
       1 TORQUE the bolt (16) to between 90 and 81 lbf.in (1.02 and 0.92 m.daN ) .
     (f) Make sure that the resistance between the grounding strap lug and the TRAS track lock (11) is 0.0100 ohms or less. If the resistance is too high, remove the bolt (16), washers (14) and (15) and grounding strap lug and do Steps 4.A.(3)(g) thru 4.A.(3)(i) again.
     (g) Remove the CAP - BLANKING from the control tube, aft return tube, return tube and TRAS track lock (11).
     (h) Apply a thin layer of lubricant (Material No.PU6-0003) to the threads of the control tube, aft return tube and return tube fittings.
     (i) Connect the control tube to the TRAS track lock (11).
       1 TORQUE the fitting on the control tube to between 245 and 215 lbf.in (2.77 and 2.43 m.daN ) .
     (j) Connect the return tube to the TRAS track lock (11).
       1 TORQUE the fitting on the return tube to between 190 and 170 lbf.in (2.15 and 1.92 m.daN ) .
     (k) Connect the aft return tube to the TRAS track lock (11).
       1 TORQUE the fitting on the aft return tube to between 190 and 170 lbf.in (2.15 and 1.92 m.daN ) .
     (l) Remove the CAP - PROTECTION from the right TRAS monitoring harness connectors (4039KS-A) and (4047KS-A) and the TRAS track lock (11).
     (m) Connect the connectors as follows:
       1 Connect the right TRAS monitoring harness (4039KS-A) and (4047KS-A) to the TRAS track lock (11).
       2 Tighten the connectors with your fingers.
       3 Then tighten the connectors 1/8 to 1/4 of a turn more with PLIERS - NOSE, SOFT, LONG (Ref. AMM TASK 78-31-61-400-812).
     (n) Install the track lock cover (Ref. AMM TASK 78-32-38-400-801).