TASK 73-22-49-200-404 Fuel System Air Tubes - Related Parts - Examine The Fuel System Air Tubes Bracket, Inspection-004

DMC:V2500-A0-73-22-4900-03A-300A-C|Issue No:001.00|Issue Date:2013-11-01

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 73-22-49-200-404 Fuel System Air Tubes - Related Parts - Examine The Fuel System Air Tubes Bracket, Inspection-004

Effectivity

FIG./ITEM

PART NO.

03-800

5A0834

03-800

5A9169

03-800

6A7420

03-800

6A9096

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 Inspection-000 TASK 73-22-49-200-100 in the Component Maintenance Manual (CMM-THDV2500- 1IA).

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.

References

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 73-22-49-220-107 Examine the Bracket for Cracks

      1. Clean the brackets.

      1. Refer to Cleaning-001 TASK 73-22-49-100-401.

      2. Do a crack test of the parts that follow.

        1. Brackets.

        1. Refer to SPM TASK 70-23-02-230-501.

        2. Cracked.

        1. Reject.

    2. SUBTASK 73-22-49-220-108 Examine the Surface of the Brackets

      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 73-22-49-220-151-001 Examine the Rivets on Bracket (03-800, 5A9169) (Pre SB 70-0101)

      1. Examine the rivets.

        1. Rivets loose or missing.

        1. Reject.

    4. SUBTASK 73-22-49-220-151-002 Examine the Rivets on Bracket (03-800, 5A0834) (SB 70-01-0101)

      1. Examine the rivets.

        1. Rivets loose or missing.

        1. Reject.

    5. SUBTASK 73-22-49-220-109 Examine the Bracket Bolt Holes (03-800, 5A9169) and (03-800, 5A0834) (Pre SB 70-0101) (SB 70-0101)

      1. Bolt hole burred.

      1. Reject.

      2. Examine the EEC inlet duct mounting holes.

        NOTE

        The hole position is on each side of the tube bracket adjacent to the three tube holes.

        1. Worn.

          1. If the hole diameter is between 0.310 in. (8.00 mm) and 0.395 in. (10.03 mm) with the distance between the edge of the worn hole and the bracket more than 0.118 in. (3.00 mm).

          1. Accept.

          2. Other than in Step.

          1. Reject.

    6. SUBTASK 73-22-49-220-157-001 Examine the Clip Position Bolt Hole (03-800, 5A9169) (Pre SB 70-0101)

      1. Examine the hole.

        NOTE

        The clip position is adjacent to the square cut-out.

        1. Worn.

          1. If the hole diameter 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 2.03 in. (5.16 mm).

          1. Accept.

          2. Other than in Step.

          1. Reject.

    7. SUBTASK 73-22-49-220-157-002 Examine the Clip Position Bolt Hole (03-800, 5A0834) (SB 70-0101)

      1. Examine the hole.

        1. Worn.

          1. If the hole diameter is between 0.255 in. (6.50 mm) and 0.270 in (6.86 mm).

          1. Accept.

          2. If the diameter is larger than 0.270 in (6.86 mm).

          1. Reject.

    8. SUBTASK 73-22-49-220-157-003 Examine the Clip Position Bolt Hole (03-800, 6A7420) (SB 73-0140)

      1. Examine the hole.

        1. Worn.

          1. If the hole diameter is between 0.214 in (5.45 mm) and 0.226 in (5.75 mm).

          1. Accept.

          2. If the diameter is larger than 0.226 in (5.75 mm).

          1. Reject.

    9. SUBTASK 73-22-49-220-155-001 Examine the Mounting Flange Bolt Hole (03-800, 5A9169) and (03-800, 5A0834) (Pre SB 70-0101) (SB 70-0101) (Pre SB 73-0140)

      1. Examine the holes.

        1. Worn.

          1. If the hole diameter 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 0.294 in. (7.47 mm).

          1. Accept.

          2. Other than in Step.

          1. Reject.

    10. SUBTASK 73-22-49-220-155-002 Examine the Mounting Flange Bolt Hole (03-800, 6A7420) (SB 73-0140)

      1. Examine the holes.

        1. Worn.

          1. If the hole diameter is between 0.284 in (7.20 mm) and 0.290 in (7.38 mm).

          1. Accept.

          2. If the diameter is larger than 0.290 in (7.38 mm).

          1. Reject.

    11. SUBTASK 73-22-49-220-153-001 Examine the Electrical Receptacle Mounting Holes (03-800, 5A9169) and (03-800, 5A0834) (Pre SB 70-0101) (SB 70-0101) (Pre SB 73-0140)

      1. Examine the holes.

        1. Worn.

          1. If the hole diameter is between 0.112 in. (2.85 mm) and 0.139 in. (3.54 mm) with the distance between the edge of the worn hole and the bracket receptacle more than 0.100 in. (2.54 mm).

          1. Accept.

          2. Other than in Step.

          1. Reject.

    12. SUBTASK 73-22-49-220-153-002 Examine the Electrical Receptacle Mounting Holes (03-800, 6A7420) (SB 73-0140)

      1. Examine the holes.

        1. Worn.

          1. If the hole diameter is between 0.112 in. (2.87 mm) and 0.116 in. (2.97 mm).

          1. Accept.

          2. Other than in Step.

          1. Reject.

    13. SUBTASK 73-22-49-220-110-001 Examine the Tube Mounting Hole on the Bracket (03-800, 5A9169) and (03- 800, 5A0834) (Pre SB 70-0101) (SB 70-0101) (Pre SB 73-0140)

      1. Tube hole burred.

      1. Reject.

      2. Examine the tube mounting hole in bracket.

        1. Worn.

          1. If the hole diameter is 0.570 in. (14.5 mm).

          1. Accept.

          2. If the diameter is larger than 0.570 in. (14.5 mm)

          1. Reject.

    14. SUBTASK 73-22-49-220-110-002 Examine the Tube Mounting Hole on the Bracket (03-800, 6A7420) (SB 73-0140)

      1. Tube hole burred.

      1. Reject.

      2. Examine the tube mounting hole in the bracket.

        1. Worn.

          1. If the hole diameter is 0.570 in. (14.5 mm).

          1. Accept.

          2. If the diameter is larger than 0.570 in. (14.5 mm).

          1. Reject.

Requirements After Job Completion

Follow-On Conditions

NONE