TASK 73-22-49-200-401 Fuel System Air Tubes - Related Parts - Examine The Fuel System Air Tubes Bracket, Inspection-001

DMC:V2500-A0-73-22-4900-00A-310A-C|Issue No:001.00|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 73-22-49-200-401 Fuel System Air Tubes - Related Parts - Examine The Fuel System Air Tubes Bracket, Inspection-001

Effectivity

FIG/ITEM

PART NO.

03-790

UP11034

03-790

UP11228

12-055

6A3124

12-060

6A3125

12-065

6A3126

General

This TASK gives the procedure for the inspection of the fuel system air tube brackets. For the other fuel system air tubes and parts, refer to Inspection-000 TASK 73-22-49-200-400 and the Component Maintenance Manual - Tubes, Ducts and Hoses (CMM-THDV2500- 1IA) Inspection-000 TASK 73-22-49-200-100.

Fig./item numbers in parentheses in the procedure agree with those used in the IPC. Only the primary Fig./item numbers are used. For the service bulletin alpha variants refer to the IPC.

The policy that is necessary for Inspection is given in the SPM TASK 70-20-01-200-501.

All the parts must be cleaned before they are examined. Refer to Cleaning-000 TASK 73-22-49-100-400.

All the parts must be visually examined for damage, corrosion and wear. Any defects that are not identified in the procedure must be referred to IAE.

The procedure for those parts which must have a crack test is given in the relevant SUBTASK. Do the crack test before the part is visually examined.

Do not discard a part until you are sure there are no repairs available. Refer to the instructions in Repair before a discarded part is used again or oversize parts are installed.

Parts which must be discarded can be held although no repair is available. The repair of a discarded part could be shown to be necessary at a subsequent date.

All parts must be examined to make sure that all the repairs are completed satisfactorily.

Practices and processes referred to in the procedure by the TASK/SUBTASK number are in the SPM.

NOTE

The consumable materials are given in the related SPM TASK.

Reference

Refer to the SPM for data on these items:

Definitions of Damage - Specified Types of Damage, SPM TASK 70-02-02-350-501.

Inspection Policy and Inspection of Parts, SPM TASK 70-20-01-200-501.

Some data on these items is contained in this TASK. For more data on these items refer to the SPM:

Methods of Testing for Crack Indications

Chemical Processes

Surface Protection

Preliminary Requirements

Pre-Conditions

NONE

Support Equipment

NONE

Consumables, Materials and Expendables

NONE

Spares

NONE

Safety Requirements

NONE

Procedure

    1. SUBTASK 73-22-49-220-051 Examine the Bracket for Cracks

      1. Examine all the surface for cracks

        1. Cracked

        1. Reject

    2. SUBTASK 73-22-49-220-052 Examine the Surface of the Brackets (03-790), (12-055), (12-060) and (12- 065)

      1. Examine all the surface

        1. Nicked

          1. Nicked to a depth of 0.006 in. (0.15 mm)

          1. Accept

          2. More than in Step.

          1. Reject

        2. Dented

          1. Dented to a depth of 0.150 in. (3.8 mm) with a large surface area

          1. Accept

          2. More than in Step.

          1. Reject

        3. Scratched

          1. Scratched to a depth of 0.006 in. (0.15 mm)

          1. Accept

          2. More than in Step.

          1. Reject

    3. SUBTASK 73-22-49-220-053 Examine the Bracket (03-790) Bolt Hole A

    1. Refer to Figure.

      2. Bolt hole burred

      1. Reject

      3. Examine the hole A at location 1

        1. Worn

          1. If the hole is between 0.469 in. (11,90 mm) and 0.582 in. (14.80 mm) with the distance between the edge of the worn hole and the bracket more than 0.142 in. (3.60 mm)

          1. Accept

          2. Other than in Step.

          1. Reject

    4. SUBTASK 73-22-49-220-098 Examine the Brackets (12-055), (12-060) and (12-065) Bolt Hole B

    1. Refer to Figure.

      2. Bolt hole burred

      1. Reject

      3. Examine the bolt hole B at location 2

        1. Worn

          1. If the hole is between 0.221 in. (5.60 mm) and 0.279 in. (7.08 mm) with the distance between the edge of the worn hole and the bracket more than 0.077 in. (1.95 mm)

          1. Accept

          2. Other than in Step.

          1. Reject

    5. SUBTASK 73-22-49-220-099 Examine the Brackets (03-790), (12-055) and (12-060) Bolt Hole C

    1. Refer to Figure.

      2. Bolt hole burred

      1. Reject

      3. Examine the bolt hole C at location 3

        1. Worn

          1. If the hole is between 0.284 in. (7.20 mm) and 0.357 in. (9.07 mm) with the distance between the edge of the worn hole and the bracket more than 0.097 in. (2.47 mm)

          1. Accept

          2. Other than in Step.

          1. Reject

    6. SUBTASK 73-22-49-220-100 Examine the Bracket (12-065) Bolt Hole C

    1. Refer to Figure.

      2. Bolt hole burred

      1. Reject

      3. Examine the bolt hole C at location 3

        1. Worn

          1. If the hole is between 0.284 in. (7.20 mm) and 0.357 in. (9.07 mm) with the distance between the edge of the worn hole and the bracket more than 0.137 in. (3.47 mm)

          1. Accept

          2. Other than in Step.

          1. Reject

    7. Figure: Inspection Of The Brackets

    Inspection Of The Brackets

Requirements After Job Completion

Follow-On Conditions

NONE