Detailed Visual Inspection (DVI) of the Engine Mount Lugs (Engine Removed) [PW11]

TASK 72-00-00-220-802-A
Detailed Visual Inspection (DVI) of the Engine Mount Lugs (Engine Removed)

WARNING: BE CAREFUL WHEN YOU DO WORK ON THE ENGINE AND THE ADJACENT COMPONENTS AFTER ENGINE SHUTDOWN. THE ENGINE, THE ENGINE OIL AND THE ADJACENT COMPONENTS CAN STAY HOT FOR A LONG TIME. IF YOU DO NOT OBEY THIS INSTRUCTION, INJURY CAN OCCUR.

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

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	FLASHLIGHT
No specific	1	MIRROR - INSPECTION

B. Referenced Information

REFERENCE	DESIGNATION
Engine Mount Lugs (Engine Removed)

3. Job Set-up
Subtask 72-00-00-869-089-A ** ON A/C NOT FOR ALL

A. Not Applicable

4. Procedure
Subtask 72-00-00-220-178-A ** ON A/C NOT FOR ALL

A. Detailed Visual Inspection (DVI) of the Engine Mount Lugs (Engine Removed)
(1) Examine the forward mount lugs for damage per limits. See the table that follows:

EXAMINE	DAMAGE	DISPOSITION
Nicks and scratches	Any quantity	Not permitted
Round bottom dents	Any quantity	Not permitted
Cracks	Any quantity	Not permitted

NOTE: Use this inspection for serviceability limits of the engine mounting lugs and bushings only.

NOTE: This inspection is only for the visible portion of the engine mount lugs with the mounts installed. Use a FLASHLIGHT and MIRROR - INSPECTION to visually examine the engine mount lug area for damage, loose or missing parts, and to check for the correct installation.

(2) Examine the thrust link lugs for damage per limits. See the table that follows:

EXAMINE	DAMAGE	DISPOSITION
Nicks and scratches	Any quantity up to 0.010 in. (0.254 mm) maximum depth	Permitted for continued service use
	Any quantity over 0.010 in. (0.254 mm) maximum depth	Not permitted
Round bottom dents	Any quantity up to 0.010 in. (0.254 mm) maximum depth and 0.500 in. (12.700 mm) maximum diameter	Permitted for continued service use
	Over 0.010 in. (0.254 mm) depth or 0.500 in. (12.700 mm) diameter	Not permitted
Cracks	Any quantity	Not permitted

(3) Examine the aft mount and fail safe lugs per limits. See the table that follows:

EXAMINE	DAMAGE	DISPOSITION
Nicks and scratches	Any quantity up to 0.010 in. (0.254 mm) maximum depth	Permitted for continued service use
	Any quantity over 0.010 in. (0.254 mm) maximum depth	Not permitted
Round bottom dents	Any quantity up to 0.010 in. (0.254 mm) maximum depth and 0.500 in. (12.700 mm) maximum diameter	Permitted for continued service use
	Over 0.010 in. (0.254 mm) depth or 0.500 in. (12.700 mm) diameter	Not permitted
Cracks	Any quantity	Not permitted

(4) Examine the forward mount lug bushings (4 locations) for damage per limits. See the table that follows:

EXAMINE	DAMAGE	DISPOSITION
Scratches and scoring	Any quantity	Not permitted
Visible wear or hole elongation	Any quantity	Not permitted
Cracks	Any quantity	Not permitted

NOTE: Do the engine mount lug and mount lug bushing inspection only if the engine mounts and attaching hardware have been removed for other reasons. Use a FLASHLIGHT and MIRROR - INSPECTION to visually examine the bushings.

(5) Examine the thrust link lug bushings on the compressor intermediate case (4 locations) per limits. See the table that follows:

EXAMINE	DAMAGE	DISPOSITION
Scratches and scoring	Any quantity up to 0.005 in. (0.127 mm) maximum depth	Permitted for continued service use
	Any quantity over 0.005 in. (0.127 mm) up to 0.010 in. (0.254 mm) depth	Not permitted
	Any quantity over 0.010 in. (0.254 mm) depth	Not permitted
Wear or hole elongation	Any quantity	Not permitted
Cracks	Any quantity	Not permitted

(6) Examine the aft mount lug bushings (4 locations) for damage per limits. See the table that follows:

EXAMINE	DAMAGE	DISPOSITION
Scratches and scoring	Any quantity up to 0.004 in. (0.102 mm) maximum depth	Permitted for continued service use
	Any quantity over 0.004 in. (0.102 mm) up to 0.008 in. (0.203 mm) depth	Not permitted
	Any quantity over 0.008 in. (0.203 mm) depth	Not permitted
Wear or hole elongation	Any quantity	Not permitted
Cracks	Any quantity	Not permitted

(7) Examine the aft mount lugs and fail safe lug for damage per limits. See the table that follows:

EXAMINE	DAMAGE	DISPOSITION
Nicks and scratches	Any quantity up to 0.010 in. (0.254 mm) maximum depth	Permitted for continued service use
	Any quantity over 0.010 in. (0.254 mm) maximum depth	Not permitted
Round bottom dents	Any quantity up to 0.010 in. (0.254 mm) maximum depth and 0.500 in. (12.700 mm) maximum diameter	Permitted for continued service use
	Over 0.010 in. (0.254 mm) depth or 0.500 in. (12.700 mm) diameter	Not permitted
Cracks	Any quantity	Not permitted

(8) Examine the assembly for foreign objects, damage, and correct assembly.

[Rev.10 from 2021] 2026.04.01 02:47:25 UTC