TASK 30-21-49-300-003 Anti-Ice Ducts - Blend Repair Surface Damage, Repair-003 (VRS2858)

DMC:V2500-A0-30-21-4901-00A-649A-C|Issue No:002.00|Issue Date:2014-05-01

Export Control

EAR Export Classification: Not subject to the EAR per 15 C.F.R. Chapter 1, Part 734.3(b)(3), except for the following Service Bulletins which are currently published as EAR Export Classification 9E991: SBE70-0992, SBE72-0483, SBE72-0580, SBE72-0588, SBE72-0640, SBE73-0209, SBE80-0024 and SBE80-0025.

Copyright

© IAE International Aero Engines AG (2001, 2014 - 2021) The information contained in this document is the property of © IAE International Aero Engines AG and may not be copied or used for any purpose other than that for which it is supplied without the express written authority of © IAE International Aero Engines AG. (This does not preclude use by engine and aircraft operators for normal instructional, maintenance or overhaul purposes.).

Applicability

All

Common Information

TASK 30-21-49-300-003 Anti-Ice Ducts - Blend Repair Surface Damage, Repair-003 (VRS2858)

Effectivity

FIG/ITEM

PART NO.

01-010

740-5172-505

01-050

740-5173-507

01-070

740-5151-513

01-070

745-5151-501

01-070

745-5151-503

01-070

740-5183-501

01-070

740-5183-503

02-100

740-5152-507

02-100

745-5152-501

02-100

745-5152-503

02-500

740-5153-507

02-500

745-5153-501

02-500

745-5153-503

Material of component

DESCRIPTION

RR SYMBOL

MATERIAL

Venturi/T.A.I. Duct

Stainless steel

General

This repair can be done on the Anti-Ice Ducts/Venturi during overhaul.

The practices and procedures referred to in the procedure by the TASK numbers are in the (SPM).

NOTE

To identify the consumable materials refer to the PCI.

Preliminary Requirements

Pre-Conditions

NONE

Support Equipment

NameManufacturerPart Number / IdentificationQuantityRemark
MicrometerLOCALMicrometer

0.0 in. to 1.0 in. (0.0 mm to 25.4 mm) ball anvil type

MicrometerLOCALMicrometer

1.0 in. to 2.0 in. (25.4 mm to 50.8 mm) ball anvil type

MicrometerLOCALMicrometer

2.0 in. to 3.0 in. (50.8 mm to 76.2 mm) ball anvil type

Consumables, Materials and Expendables

NameManufacturerPart Number / IdentificationQuantityRemark
CoMat 01-076 METHYL ETHYL KETONELOCALCoMat 01-076
CoMat 02-099 LINT-FREE CLOTHLOCALCoMat 02-099

Spares

NONE

Safety Requirements

NONE

Procedure

    1. SUBTASK 30-21-49-220-071 Examine the Area of the Duct for Repair

      1. Mark the repair area of the duct.

      1. The repair area of the duct must measure a minimum dimension of 10 times the depth of damage.

      2. Measure the external diameter of the duct at the damaged area.

      1. Use the applicable micrometer and record the diameter.

    2. SUBTASK 30-21-49-350-052 Repair the Area of Damage

      1. Remove the damage.

      1. Refer to SPM TASK 70-35-03-300-501.

    3. SUBTASK 30-21-49-110-055 Clean the Repaired Area

      WARNING

      DO NOT GET THE CLEANING FLUID ON YOUR SKIN OR IN YOUR EYES. PUT ON PROTECTIVE CLOTHING, GLOVES, GOGGLE AND A MASK. USE THE FLUID IN A WELL VENTILATED AREA. DO NOT BREATHE THE GAS. IF YOU GET THE FLUID ON YOUR SKIN OR IN YOUR EYES FLUSH IT AWAY WITH WATER. GET MEDICAL AID IF YOUR SKIN OR EYES BECOME IRRITATED.

      1. Clean the repaired area.

      2. Make the area clean with a clean piece of lint free cloth before the fluid dries.

    4. SUBTASK 30-21-49-220-072 Examine the Repaired Area

      1. Examine the repaired area.

      1. Refer to Inspection-000 TASK 30-21-49-200-100.

      2. Make sure that the repair area is smooth and has no scratches.

      3. Make sure that the repaired area has no sudden changes in thickness.

      2. Measure the external diameter of the duct at the repaired area.

      1. Refer to Figure.

      2. Use the applicable micrometer.

      3. Make sure that the deepest area of the repair is measured.

      4. Record the diameter.

      3. Calculate the wall thickness of the duct in the repaired area.

      1. Refer to Figure (Dimension X).

      2. Compare the external diameter measurement (after the repair) with the measurement made before the repair.

      3. The difference between them must be no more than 0.004 in. (0.102 mm).

      4. If more than 0.004 in. (0.102 mm), discard the duct.

    5. SUBTASK 30-21-49-220-073 Examine the Area of the End Fitting for Repair

      1. Mark the repair area of the end fitting.

      1. The repair area of the end fitting must measure a minimum of 10 times the depth of damage.

      2. Measure the thickness of the materials at the damaged area.

      1. Use the applicable micrometer and record this dimension.

    6. SUBTASK 30-21-49-350-053 Repair the Area of Damage

      1. Remove the damage.

      1. Refer to SPM TASK 70-35-03-300-501.

    7. SUBTASK 30-21-49-110-056 Clean the Repaired Area

      WARNING

      DO NOT GET THE CLEANING FLUID ON YOUR SKIN OR IN YOUR EYES. PUT ON PROTECTIVE CLOTHING, GLOVES, GOGGLES AND A MASK. USE THE FLUID IN A WELL VENTILATED AREA. DO NOT BREATHE THE GAS. IF YOU GET THE FLUID ON YOUR SKIN OR IN YOUR EYES, FLUSH IT AWAY WITH WATER. GET MEDICAL AID IF YOUR SKIN OR EYES BECOME IRRITATED.

      1. Clean the repaired area.

        1. Make the area clean with a clean piece of lint-free cloth before the fluid dries.

    8. SUBTASK 30-21-49-220-074 Examine the Repaired Area

      1. Examine the repaired area.

      1. Refer to Inspection-000 TASK 30-21-49-200-100.

      2. Make sure that the repair area is smooth and has no scratches.

      3. Make sure that the repaired area has no sudden changes in thickness.

      2. Measure the thickness of the material at the repaired area.

      1. Make sure that the deepest area of the repair is measured. Record the thickness.

      3. Calculate the thickness of the end fitting in the repaired area.

      1. Refer to Figure (Dimension X).

      2. Compare the thickness measurement (after the repair) with the measurement made before the repair.

      3. The difference between the measurements must not be more than 0.010 in. (0.254 mm).

      4. Discard any end fittings that are not in these limits.

    9. SUBTASK 30-21-49-780-055 Pressure Test the Repaired Duct

      1. Do a pressure test on the repaired duct.

      1. Refer to TASK 30-21-49-700-001.

    10. SUBTASK 30-21-49-850-051 Put the Repair Scheme Number on the Duct/End Fitting

      1. Mark the repair scheme number VRS2858 on the duct adjacent to the part number using the electro-etch method

      1. Refer to SPM TASK 70-09-00-400-501.

    11. Figure: Anti-Ice Ducts Repair Area

    Anti-Ice Ducts Repair Area

Requirements After Job Completion

Follow-On Conditions

NONE
Change Type:

Revised metric conversion. (PML 6105)

Manufacturer Code:LOCAL
Enterprise Name:LOCALLY SUPPLIED
Manufacturer Code:LOCAL
Supply Number:CoMat 01-076
Type:sp01
Supply Short Name:CoMat 01-076 METHYL ETHYL KETONE
Supply Name:CoMat 01-076 METHYL ETHYL KETONE
Specification Groups:
Doc NumberType
METHYL ETHYL KETONE, TECHNICAL GRADE, CERTIFIED TO BSI BS 1940 OR ASTM D740, OR TT-M-261
Suppliers:
ManufacturerRemarks
LOCAL
Manufacturer Code:X222X
Supply Number:CoMat 02-099
Type:sp01
Supply Short Name:CoMat 02-099 LINT-FREE CLOTH
Supply Name:CoMat 02-099 LINT-FREE CLOTH
Specification Groups:
Doc NumberType
WHERE COMAT 02-099 IS SPECIFIED WITH NO SUFFIX, USE COMAT 02-099A OR COMAT 02-099B.
Suppliers:
ManufacturerRemarks
X222X
Manufacturer Code:LOCAL
Tool Number:Micrometer
Tool Name:Micrometer