Belly Fairing Panels-Edge Repair

TASK 53-35-00-300-801-A
Belly Fairing Panels-Edge Repair

WARNING: MAKE SURE THAT THE GROUND SAFETY-LOCKS ARE IN POSITION ON THE LANDING GEAR. THIS WILL PREVENT UNWANTED MOVEMENT OF THE LANDING GEAR, AND THUS POSSIBLE INJURY TO PERSONS AND DAMAGE TO THE AIRCRAFT AND/OR EQUIPMENT.

WARNING: PUT THE SAFETY DEVICES AND THE WARNING NOTICES IN POSITION BEFORE YOU START A TASK ON OR NEAR:

THE FLIGHT CONTROLS
THE FLIGHT CONTROL SURFACES
THE LANDING GEAR AND THE RELATED DOORS
COMPONENTS THAT MOVE.

MOVEMENT OF COMPONENTS CAN KILL OR CAUSE INJURY TO PERSONS AND/OR CAN CAUSE DAMAGE TO THE EQUIPMENT.

WARNING: MAKE SURE THAT THE TRAVEL RANGES OF THE FLIGHT CONTROLS SURFACES ARE CLEAR. MOVEMENT OF FLIGHT CONTROLS CAN CAUSE INJURY TO PERSONS AND/OR DAMAGE TO EQUIPMENT.

CAUTION: DO NOT CAUSE DAMAGE TO THE SURFACES. THE COMPONENTS ARE MADE OF CARBONFIBER REINFORCED PLASTIC.

ZONE: 190

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

REFERENCE	QTY	DESIGNATION
No specific	1	ACCESS PLATFORM 2M (6 FT)
No specific	AR	SAFETY BARRIER(S)
No specific	1	SPATULA - NON METALLIC
No specific	1	WARNING NOTICE(S)

B. Consumable Materials

REFERENCE	DESIGNATION
(Material No.05EML8)	Epoxy Adhesive-- - Legacy 2
(Material No.08BBD1)	Non Aqueous Cleaner-- Isopropyl Alcohol -
(Material No.14FAE1)	Abrasive-- Emery cloth -
(Material No.14SBA1)	Textile-Lint free Cotton -

C. Work Zones and Access Panels

ZONE/ACCESS	ZONE DESCRIPTION
190	BELLY FAIR, AIR CONDITIONING & HYD COMPT

D. Referenced Information

REFERENCE	DESIGNATION
TASK 29-10-00-864-001-A	Depressurize the Green Hydraulic System
TASK 29-10-00-864-002-A	Depressurize the Yellow Hydraulic System
TASK 29-10-00-864-003-A	Depressurize the Blue Hydraulic System
TASK 51-75-12-300-003-A	Repair of Minor Paint Damage (Topcoat Only)
TASK 53-35-11-000-001-A	Removal of the Wing-to-Fuselage Fairings
TASK 53-35-11-400-001-A	Installation of the Wing-to-Fuselage Fairings
SRM 512721	(for corrective action)
Belly Fairing Edge-Repair

3. Job Set-up
Subtask 53-35-00-941-053-A

A. Safety Precautions
(1) As necessary, use the applicable SAFETY BARRIERS, specified by the operator's instructions and your local regulations.
(2) Put a WARNING NOTICE(S) in the cockpit to tell persons not to operate the flight controls.

Subtask 53-35-00-010-057-A

B. Get Access
(1) Remove the belly fairing panels (Ref. AMM TASK 53-35-11-000-001).
(2) Put the ACCESS PLATFORM 2M (6 FT) in position.

Subtask 53-35-00-860-056-A

C. Aircraft Maintenance Configuration
(1) Energize the aircraft electrical circuits
(2) Depressurize the Green, Yellow and Blue hydraulic systems (Ref. AMM TASK 29-10-00-864-001), (Ref. AMM TASK 29-10-00-864-002) and (Ref. AMM TASK 29-10-00-864-003).

4. Procedure
Subtask 53-35-00-350-050-A

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

WARNING: WHEN YOU DRILL, MACHINE, BLEND, GRIND OR SAND PARTS, USE PROTECTIVE CLOTHING, GLOVES, DUST MASK AND GOGGLES. BE CAREFUL NOT TO BREATHE THE DUST OR LET IT TOUCH YOUR SKIN. DUST AND PARTICLES ARE DANGEROUS FOR YOUR HEALTH.

A. Do the repair of the belly-fairing panel as follows:

NOTE: The procedure that follows is for panel 147CB. The procedure for the panels 147AB, 147BB, 147EB, 147FB, 148DB, 148FB and 195CB are almost the same.

(1) Clean the repair area with Non Aqueous Cleaner-- Isopropyl Alcohol - (Material No.08BBD1) and a Textile-Lint free Cotton - (Material No.14SBA1) .
(2) Do the repair procedure:

Belly Fairing Edge-Repair

(a) Make sure that the repair area is dry.
(b) Carefully grind the edges of the belly fairing panels to get a minimum of 2.5 mm (0.0984 in.) clearance between the panel and the MLG door. Refer to SRM 512721 for grinding.

NOTE: The clearance of minimum 2.5mm is necessary to get a clearance of 2mm after painting (with the MLG door in the closed position).

(c) Make sure that the distance between the center of the fastener and the panel edge is more than or equal to 10 mm (0.3937 in.).
(d) Apply a smooth paste of Epoxy Adhesive-- - Legacy 2 (Material No.05EML8) (Araldite134) to the repair area with a SPATULA - NON METALLIC.
(e) Let the adhesive cure. Obey the manufacturer's instructions.

CAUTION: DO NOT CAUSE DAMAGE TO THE SURFACE OF THE COMPOSITE MATERIAL WHEN YOU REMOVE THE PAINT COATING WITH ABRASIVE PAPER.

(f) Make the repair area smooth with a Abrasive-- Emery cloth - (Material No.14FAE1) .
(g) If necessary, repair the paint coat (Ref. AMM TASK 51-75-12-300-003).

5. Close-up
Subtask 53-35-00-410-056-A

A. Close Access
(1) Install the belly fairing panels (Ref. AMM TASK 53-35-11-400-001).

Subtask 53-35-00-942-053-A

B. Remove the ground support equipment
(1) Remove the access platform(s).
(2) Remove the WARNING NOTICE(S).
(3) Remove the ground support and maintenance equipment, the special and standard tools and all other items.

Subtask 53-35-00-860-057-A

C. Aircraft Maintenance Configuration
(1) De-energize the aircraft electrical circuits

[Rev.10 from 2021] 2026.04.02 06:29:10 UTC