GENX-1B - CLEANING,INSPECTION,AND REPAIR MANUAL

	GENX-1B CLEANING,INSPECTION,AND REPAIR MANUAL	Dated: 03/25/2025
	CIR 72-30-01 , REPAIR 005
	HIGH PRESSURE COMPRESSOR STATOR EXTENSION CASE - REPAIR - REPLACEMENT OF THE SELF-LOCKING NUT GANG CHANNEL ASSEMBLY

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TASK 72-30-01-300-806

1 .

Replacement of the Self-Locking Nut Gang Channel Assembly.

This procedure gives instructions to repair the high pressure compressor (HPC) stator extension case (case) by replacing the self-locking nut gang channel assembly (nut assembly).

The following maximum repairable limits apply to this repair:

NOTE:

The information below gives maximum repairable limits for the applicable Inspection sections. The paragraphs are numbered the same as the manual Inspection sections.

(4)

Visual Inspection.

(f)

Do an inspection of the nut assembly for:

Loss of self-locking quality (0.250-28 UNJF):

Maximum repairable limit:

Any amount.

Damaged threads:

Maximum repairable limit:

Any amount.

Missing nut:

Maximum repairable limit:

Any amount.

The subsequent table gives a list of the part numbers that are applicable to this procedure. All part numbers are applicable to all paragraphs unless specified differently.

Part Number(s)

Proprietary/Complex Process Statement.

(1)

None.

2 .

Tools, Equipment, and Materials.

NOTE:

Repair sources can use equivalent alternatives for tools, equipment, and consumable materials, however, the repair source must demonstrate and document equivalency.

Tools and Equipment.

(1)

Special Tools. None.

(2)

Standard Tools and Equipment. None.

(3)

Locally Manufactured Tools. None.

Consumable Materials.

Code No.

Description

C02-058

Compound, Thread Lubricating (lubricant)

C10-108

Brush, Disposable, Natural Bristle (brush)

C10-182

Cloth, Cleaning for Aircraft Structural (SAE-AMS 3819, BMS 15-5) (lint-free cloth)

Referenced Procedures.

ATA No.

Description

70-10-00

Assembly and Disassembly Techniques

70-51-00

Tightening Practices and Torque Values

72-30-01

Cleaning 001

72-30-01

Inspection 001

Expendable Parts. None.

SPD Information.

(1)

Spares Supplied. None.

(2)

Protected Spares.

Part Number

Description

J951P07A

Screw, Machine-Flush Head Internal Six Lobe Drive, A286 (screw)

2327M73G02

Nut Assembly, Self-Locking - Gang Channel (nut assembly)

(3)

Locally Manufactured Spares. None.

Special Solutions. None.

Test Specimens. None.

3 .

Dimensional Information.

None.

4 .

Setup Information.

None.

5 .

Procedure.

Subtask 72-30-01-800-001

Remove the unserviceable nut assembly. Refer to TASK 70-10-00-800-009 (ASSEMBLY AND DISASSEMBLY TECHNIQUES), Figure 901, and as follows:

(1)

Remove the screws and nut assembly from the forward inner wishbone flange of the case.

Subtask 72-30-01-160-007

Clean the forward inner wishbone flange of the case. Refer to TASK 72-30-01-100-801 (72-30-01, CLEANING 001).

Subtask 72-30-01-220-086

Do an inspection of the forward inner wishbone flange of the case. Refer to TASK 72-30-01-200-801 (72-30-01, INSPECTION 001).

Subtask 72-30-01-350-039

Install the new nut assembly (2327M73G02 ) and screws (J951P07A ) to the forward inner wishbone flange of the case. Refer to Figure 901 and as follows:

WARNING:

REFER TO THE PRODUCT LABEL AND THE MANUFACTURER’S (MATERIAL) SAFETY DATA SHEET (SDS) FOR INSTRUCTIONS ON THE HAZARDS, STORAGE, SAFE HANDLING AND PROPER USE OF THIS PRODUCT.

(1)

Apply C02-058 lubricant to the threads of the screws as follows:

(a)

Use C10-108 brush to apply the lubricant.

(b)

Use a clean, C10-182 lint-free cloth to remove unwanted lubricant.

(2)

Torque the screws to 35 lb-in (3.95 Nm). Refer to TASK 70-51-00-400-004 (TIGHTENING PRACTICES AND TORQUE VALUES).

Subtask 72-30-01-220-087

Do a visual inspection of the installed nut assembly. Refer to TASK 72-30-01-200-801 (72-30-01, INSPECTION 001).

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