DOC AIRBUS | AMM A320FReplacement of Defective or Missing Thermal Insulation Blankets (On Radial Struts TRF Only) [CFMB]
TASK 72-56-00-300-004-A
Replacement of Defective or Missing Thermal Insulation Blankets (On Radial Struts TRF Only)
1. Reason for the Job
Self explanatory
2. Job Set-up Information
A. Fixtures, Tools, Test and Support Equipment
B. Consumable Materials
C. Referenced Information
3. Job Set-up
Subtask 72-56-00-010-066-A ** ON A/C NOT FOR ALL
Subtask 72-56-00-350-053-A ** ON A/C NOT FOR ALL
Subtask 72-56-00-410-066-A ** ON A/C NOT FOR ALL
[Rev.10 from 2021]
2026.04.01 02:43:34 UTC
Replacement of Defective or Missing Thermal Insulation Blankets (On Radial Struts TRF Only)
1. Reason for the Job
Self explanatory
2. Job Set-up Information
A. Fixtures, Tools, Test and Support Equipment
| REFERENCE | QTY | DESIGNATION |
|---|---|---|
| No specific | Torque wrench: range to between 110 and 100 lbf.in (1.24 and 1.13 m.daN )  |
| REFERENCE | DESIGNATION |
|---|---|
| (Material No.CP2101) | graphite grease |
| REFERENCE | DESIGNATION |
|---|---|
| TASK 78-11-11-000-041-A | Removal of the Core Nozzle Assembly |
| TASK 78-11-11-400-041-A | Installation of the Core Nozzle Assembly |
| TASK 78-11-12-000-041-A | Removal of the Centerbody |
| TASK 78-11-12-400-041-A | Installation of the Centerbody |
Replacement of the Thermal Insulation BlanketsSubtask 72-56-00-010-066-A ** ON A/C NOT FOR ALL
A. Get Access
(1) Remove the core nozzle (Ref. AMM TASK 78-11-11-000-041).
(2) Remove the center body (Ref. AMM TASK 78-11-12-000-041).
4. Procedure(1) Remove the core nozzle (Ref. AMM TASK 78-11-11-000-041).
(2) Remove the center body (Ref. AMM TASK 78-11-12-000-041).
Subtask 72-56-00-350-053-A ** ON A/C NOT FOR ALL
A. Replacement of defective or missing thermal insulation blankets
(1) Replacement of items (30), (40) (and (50) for POST CFM SB 72-554)
PRE CFM SB 72-247
(a) Remove the attachments bolts (10) from the rear flange of the thermal insulation blanket.
END OF PRE CFM SB 72-247
POST CFM SB 72-247
(b) Remove the attachment bolts (10) and washers (20) from the rear flange of the thermal insulation blanket.
END OF POST CFM SB 72-247
(c) Remove the blanket by lifting the rear flange, then pull and twist it.
PRE CFM SB 72-247
(f) Install the two bolts (10) securing the blanket.
END OF PRE CFM SB 72-247
POST CFM SB 72-247
(g) Install the two washers (20) and two bolts (10) securing the blanket.
END OF POST CFM SB 72-247
(h) TORQUE the bolts to between 110 and 100 lbf.in (1.24 and 1.13 m.daN ).
(2) Removal of item (50) (for PRE CFM SB 72-554)
PRE CFM SB 72-247
(a) Remove the attachments bolts (10) from the rear flange of the thermal insulation blanket.
END OF PRE CFM SB 72-247
POST CFM SB 72-247
(b) Remove the attachment bolts (10) and washers (20) from the rear flange of the thermal insulation blanket.
END OF POST CFM SB 72-247
(c) Stretch the old thermal insulation blankets
(d) Install the new thermal insulation blanket item (50).
PRE CFM SB 72-247
(f) Install the two bolts (10) securing the blanket.
END OF PRE CFM SB 72-247
POST CFM SB 72-247
(g) Install the two washers (20) and two bolts (10) securing the blanket.
END OF POST CFM SB 72-247
(h) TORQUE the bolts to between 110 and 100 lbf.in (1.24 and 1.13 m.daN ).
5. Close-up(1) Replacement of items (30), (40) (and (50) for POST CFM SB 72-554)
PRE CFM SB 72-247
(a) Remove the attachments bolts (10) from the rear flange of the thermal insulation blanket.
END OF PRE CFM SB 72-247
POST CFM SB 72-247
(b) Remove the attachment bolts (10) and washers (20) from the rear flange of the thermal insulation blanket.
END OF POST CFM SB 72-247
(c) Remove the blanket by lifting the rear flange, then pull and twist it.
NOTE: Be careful to not damage the seal cover when you disengage the thermal insulation blanket.
(d) Install the new thermal insulation blanket items (30),(40) (and 50 for POST CFM SB 72-554). NOTE: Be careful to not damage the seal cover when you engage the front edge of the thermal insulation blanket.
(e) Apply a thin layer of graphite grease (Material No.CP2101) on the bolts. PRE CFM SB 72-247
(f) Install the two bolts (10) securing the blanket.
END OF PRE CFM SB 72-247
POST CFM SB 72-247
(g) Install the two washers (20) and two bolts (10) securing the blanket.
END OF POST CFM SB 72-247
(h) TORQUE the bolts to between 110 and 100 lbf.in (1.24 and 1.13 m.daN )
. (2) Removal of item (50) (for PRE CFM SB 72-554)
PRE CFM SB 72-247
(a) Remove the attachments bolts (10) from the rear flange of the thermal insulation blanket.
END OF PRE CFM SB 72-247
POST CFM SB 72-247
(b) Remove the attachment bolts (10) and washers (20) from the rear flange of the thermal insulation blanket.
END OF POST CFM SB 72-247
(c) Stretch the old thermal insulation blankets
CAUTION:
THE REMOVAL OF THE OLD THERMAL INSULATION BLANKETS BETWEEN STRUTS 2-3, 7-8, 10-11 AND 15-16 MUST BE PERFORMED CAREFULLY DUE TO THEIR SPECIFIC SHAPE. TAKE CARE TO PREVENT DAMAGE TO ADJACENT PARTS WHEN YOU PUT THE BLANKETS OUT OF SHAPE TO PERMIT THEIR REMOVAL.
1 Stretch the old thermal insulation blankets out of shape as necessary to permit their disengagement from the heat shield and their removal from the LPT frame. (d) Install the new thermal insulation blanket item (50).
NOTE: Be careful to not damage the seal cover when you engage the front edge of the thermal insulation blanket.
(e) Apply a thin layer of graphite grease (Material No.CP2101) on the bolts. PRE CFM SB 72-247
(f) Install the two bolts (10) securing the blanket.
END OF PRE CFM SB 72-247
POST CFM SB 72-247
(g) Install the two washers (20) and two bolts (10) securing the blanket.
END OF POST CFM SB 72-247
(h) TORQUE the bolts to between 110 and 100 lbf.in (1.24 and 1.13 m.daN )
. Subtask 72-56-00-410-066-A ** ON A/C NOT FOR ALL
A. Close Access
(1) Install the center body (Ref. AMM TASK 78-11-12-400-041).
(2) Install the core nozzle (Ref. AMM TASK 78-11-11-400-041).
(1) Install the center body (Ref. AMM TASK 78-11-12-400-041).
(2) Install the core nozzle (Ref. AMM TASK 78-11-11-400-041).