Installation of the Ramp Fairing [CFMI]

TASK 78-32-42-400-040-A
Installation of the Ramp Fairing

FIN: 1000EM1 ** ON A/C NOT FOR ALL
FIN: 1000EM2 ** ON A/C NOT FOR ALL

1. Reason for the Job
Self explanatory
2. Job Set-up Information
A. Fixtures, Tools, Test and Support Equipment

REFERENCE	QTY	DESIGNATION
No specific	AR	ACCESS PLATFORM 1M(3 FT)
No specific	AR	CLOTH - ABRASIVE (GRADE 120-180)
No specific	AR	SPATULA - NON METALLIC
No specific	AR	WARNING NOTICE(S)
No specific	Torque wrench: range to between 53 and 45 lbf.in (0.60 and 0.51 m.daN )
No specific	Torque wrench: range to between 70 and 61 lbf.in (0.79 and 0.69 m.daN )
HIX3005	1	SAFETY SLEEVE - PIVOTING DOOR ACTUATOR

B. Consumable Materials

REFERENCE	DESIGNATION
(Material No.CP1039)	acetone
(Material No.CP1041)	isopropyl alcohol
(Material No.CP2011)	stoddard solvent
(Material No.CP2242)	RTV 732
(Material No.CP2243)	sealant
(Material No.CP2318)	blindexite RT 342-2
(Material No.CP2327)	PR1431 S-1
(Material No.CP2559)	ardrox 552
(Material No.CP2560)	turco ind 79
(Material No.CP2566)	mag-chem teksol
(Material No.CP2584)	degreasol 99 R
(Material No.CP2656)	mag-chem skysol

C. Work Zones and Access Panels

ZONE/ACCESS	ZONE DESCRIPTION
FOR [1000EM1] (ENGINE-1)
437AL, 438AR, 451AL, 452AR
FOR [1000EM2] (ENGINE-2)
447AL, 448AR, 461AL, 462AR

D. Expendable Parts

FIG.ITEM	DESIGNATION	IPC-CSN
50	STRUT SEALS	AIPC 78-32-01-02-320

E. Referenced Information

REFERENCE	DESIGNATION
TASK 71-13-00-010-040-A	Opening of the Fan Cowl Doors
TASK 71-13-00-410-040-A	Closing of the Fan Cowl Doors
TASK 78-30-00-081-041-A	Make the Thrust Reverser Serviceable after Maintenance
TASK 78-30-00-481-041-A	Make the Thrust Reverser Unserviceable for Maintenance
TASK 78-32-41-080-040-A	Removal of the Safety Sleeve from Blocker Door Actuator
TASK 78-32-41-860-040-A	Manual Deployment of the Blocker Door
TASK 78-32-41-860-041-A	Manual Stowing of the Blocker Door
TASK 78-36-00-010-040-A	Opening of the Thrust Reverser Doors
TASK 78-36-00-410-040-A	Closing of the Thrust Reverser Doors
SPM 706611
SPM 706612
Ramp Fairing
Ramp Fairing
Ramp Fairing
Strut Fairing Sealant

3. Job Set-up
Subtask 78-32-42-860-059-A ** ON A/C NOT FOR ALL

A. Aircraft Maintenance Configuration
(1) On the center pedestal, on the ENG panel 115VU, make sure that a WARNING NOTICE(S) is in position to tell persons not to start the engine.
(2) On the overhead maintenance panel 50VU, make sure that the ON legend of the ENG/FADEC GND PWR/1(2) pushbutton switch is off. Make sure that a WARNING NOTICE(S) is in position to tell persons not to energize the FADEC 1(2).
(3) Make sure that the blocker doors are in deploy position (Ref. AMM TASK 78-32-41-860-040).
(4) Make sure that HIX3005 SAFETY SLEEVE - PIVOTING DOOR ACTUATOR are installed on the blocker doors.
(5) Make sure that the ACCESS PLATFORM 1M(3 FT) is in position.

Subtask 78-32-42-010-070-A ** ON A/C NOT FOR ALL

B. Get Access
(1) Make sure that the fan cowl doors are open (Ref. AMM TASK 71-13-00-010-040):
(a) FOR [1000EM1] (ENGINE-1)
437AL 438AR
(b) FOR [1000EM2] (ENGINE-2)
447AL 448AR
(2) Make sure that the thrust reverser doors are open (Ref. AMM TASK 78-36-00-010-040):
(a) FOR [1000EM1] (ENGINE-1)
451AL 452AR
(b) FOR [1000EM2] (ENGINE-2)
461AL 462AR

Subtask 78-32-42-040-062-A ** ON A/C NOT FOR ALL

C. Make sure that the thrust reverser is unserviceable (Ref. AMM TASK 78-30-00-481-041).

4. Procedure
Subtask 78-32-42-420-056-A ** ON A/C NOT FOR ALL

A. Installation of the Ramp Fairing
(1) Mixing of protective coating:

WARNING: BE CAREFUL WHEN YOU USE CONSUMABLE MATERIALS. OBEY THE MATERIAL MANUFACTURER'S INSTRUCTIONS AND YOUR LOCAL REGULATIONS.

(a) Mix protective coating PR1431 S-1 (Material No.CP2327) per manufacturer's instructions and apply a thin layer 0.007 in. (0.18 mm) max. on the structure surfaces you must protect.

POST SB RA32078-23

(2) If applicable, Install the upper/lower corner flanges on the half door.

Ramp Fairing ** ON A/C NOT FOR ALL

(a) Apply a thin coat of blindexite RT 342-2 (Material No.CP2318) on nine screws (10) and secure cut corner flange with the screws and nine nuts (20).
(b) TORQUE the screws to between 53 and 45 lbf.in (0.60 and 0.51 m.daN )

.
(3) Install the upper/lower ramp fairings:

Ramp Fairing ** ON A/C NOT FOR ALL

(a) Apply a thin coat of blindexite RT 342-2 (Material No.CP2318) on seven screws (10) and three screws (30) then secure ramp fairing with the screws (10, 30) and two nuts (20) and three nuts (40).
(b) TORQUE the screws (10) to between 53 and 45 lbf.in (0.60 and 0.51 m.daN )

.
(c) TORQUE the screws (30) to between 70 and 61 lbf.in (0.79 and 0.69 m.daN )

.
(4) Remove the unwanted protective coated with a SPATULA - NON METALLIC or equivalent.
(5) Install the deflector:

Ramp Fairing ** ON A/C NOT FOR ALL

(a) Apply a thin coat of blindexite RT 342-2 (Material No.CP2318) on 12 screws (10) then secure deflector with the screws and 12 nuts (20).
(b) TORQUE the screws to between 53 and 45 lbf.in (0.60 and 0.51 m.daN )

.
(6) Apply a bead of sealant:

WARNING: BE CAREFUL WHEN YOU USE CONSUMABLE MATERIALS. OBEY THE MATERIAL MANUFACTURER'S INSTRUCTIONS AND YOUR LOCAL REGULATIONS.

(a) Apply a bead of sealant (Material No.CP2243) at the junction of the upper/lower cut corners with the upper/lower ramp fairings and if applicable, the upper/lower cut corner flanges. Apply a bead of sealant (Material No.CP2243) at the junction of the upper ramp fairing with the lower ramp fairing and at the junction of the deflector with the skittle beam and the upper/lower ramp fairing SPM 706611.

Ramp Fairing ** ON A/C NOT FOR ALL

END OF SB RA32078-23

POST SB RA32078-13

(7) Make the strut surfaces rough where the seal (50) will be set with an CLOTH - ABRASIVE (GRADE 120-180).
(8) Make rough the surface of the new AIPC 78-32-01-02-320 STRUT SEALS (50) you will bond. Use an CLOTH - ABRASIVE (GRADE 120-180).

Strut Fairing Sealant ** ON A/C NOT FOR ALL

(9) Cleaning:

WARNING: BE CAREFUL WHEN YOU USE CONSUMABLE MATERIALS. OBEY THE MATERIAL MANUFACTURER'S INSTRUCTIONS AND YOUR LOCAL REGULATIONS.

(a) Clean the nine o'clock strut and seal surfaces you made rough. Use acetone (Material No.CP1039) or stoddard solvent (Material No.CP2011) or ardrox 552 (Material No.CP2559) or turco ind 79 (Material No.CP2560) or mag-chem teksol (Material No.CP2566) or degreasol 99 R (Material No.CP2584) or mag-chem skysol (Material No.CP2656) or isopropyl alcohol (Material No.CP1041) . Rub area dry before solution evaporates.
(10) Apply RTV 732 (Material No.CP2242) on strut and seal areas to be in contact SPM 706612.
(11) Install the seals (50).
(12) Install the two caps (60).
(13) Fully fill the two holes of the strut with RTV 732 (Material No.CP2242) . Apply a bead of sealant around the strut SPM 706612.

END OF SB RA32078-13

5. Close-up
Subtask 78-32-42-410-063-A ** ON A/C NOT FOR ALL

A. Close Access
(1) Make sure that the work area is clean and clear of tools and other items.
(2) Close the thrust reverser half doors but do not make the thrust reverser serviceable (Ref. AMM TASK 78-36-00-410-040):
(a) FOR [1000EM1] (ENGINE-1)
451AL 452AR
(b) FOR [1000EM2] (ENGINE-2)
461AL 462AR

Subtask 78-32-42-080-052-A ** ON A/C NOT FOR ALL

B. Remove the safety sleeve (HIX-3005) from blocker doors actuator (Ref. AMM TASK 78-32-41-080-040).

Subtask 78-32-42-860-061-A ** ON A/C NOT FOR ALL

C. Bring the Blocker Doors

CAUTION: BLOCKER DOOR LATCH MUST BE OPENED WHEN YOU CLOSE THE BLOCKER DOOR OR DAMAGE CAN OCCUR.

(1) Manually bring blocker doors to stow position (Ref. AMM TASK 78-32-41-860-041).

Subtask 78-32-42-440-056-A ** ON A/C NOT FOR ALL

D. Make the thrust reverser serviceable (Ref. AMM TASK 78-30-00-081-041).

Subtask 78-32-42-410-064-A ** ON A/C NOT FOR ALL

E. Close Access
(1) Close the fan cowl doors (Ref. AMM TASK 71-13-00-410-040):
(a) FOR [1000EM1] (ENGINE-1)
437AL 438AR
(b) FOR [1000EM2] (ENGINE-2)
447AL 448AR
(2) Remove the access platform(s).
(3) Remove the WARNING NOTICE(S).

[Rev.10 from 2021] 2026.04.02 06:38:10 UTC