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Section l:Introduction

Borescope Inspection Tips and Techniques

The following illustrations provide examples of some basic borescoping tips andtechniques successfully used by trained inspectors to competently conduct athorough inspection of all JTSD combustion chambers,

. When inserting or withdrawing theborescope and moving from one combus-tion chamber to the next via the crossovertubes, ensure that the borescope is re-tracted into the guide tube and that thetube and borescope are properly alignedwith the opening being traversed.

. It is advisable during inspections toposition the optic side (not the light side)of the borescope tip closer to the com-bustion chamber surface. This is essentialwhen inspecting the area under thelouvers.

BORTSCOPT RETRACTTDA5 CUIDT TUBI I5INSTRTED INTOCOMBUSIION CHAMATR.

vtEwtNc rENS BORtSCOPt

Note: Cracks viewed at a shallow angle (viewing angle parallel with combustionchamber surface) may appear as a raised or displaced surface. If possible,attempt to view suspected area from other angles by repositioning theborescope. See Alert Service Bulletin 5639 for additional guidelines inperforming effective borescope inspections.

JTSD ConbßIion Chanber Borcvopias Ißpation Cuide

||-2Intersecting Circumferential/Axial Cracks

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CAN LOCATION

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CAN LOCATION

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Lip Closure / Circu mferential Crack

C A N L O C A T I O N

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Circumferential Crack Under Louver

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CAN LOCATION

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Raised Material / Circumferential Crack

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C A N L O C A T I O N

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Circumferential Crack Emanating From Crossover Tube

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CAN LOCATION

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Axial Cracks

CAN LOCATION

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Diagonal Crack

C A N L O C A T I O N

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Axial Crack/Manufactured Hole

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|l.-22Burned-Out/Missing Material

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CAN LOCATION

Richard WOLF GmbH, Postbox 1165, D-75434 Knittlingen, Germany,Tel.: +49-(0)7043-35-222, Fax: +49-(0)7043-35-1220, Email: riwotech@richard-wolf.com

PT6 / PW 100

PRATT & WHITNEY CANADA ENGINEPT6 / PW100

BORESCOPE-KIT

WOLF kit no. 1.00100.22

Designation of equipment WOLF cat. no.

Flex. Fiber-Borescope TF-5, ∅ 5 mm, working length 1040 mm (OEM), 4-way angulation 2 x 180° and 2 x 140°

or the similar but length 1,300 mm

Light projector TLX-2 Xenon 180 W (highintensity)Spare lamp Xenon 180W

Joint support arm, compl.

Carrying case for the Light sourceCarrying case for the Fiber-Borescope is incl.

7.05104.002

7.05130.002 (the longer alternative)

2.51240.0012412.115

1.29100.00

3.51210.90--

{Technical data for light projector and accessories please see our coloured catalogue ACCESSORIES,for flexible Fiber-Borescope please see our coloured catalogue FLEX. TECHNOSCOPES (FIBERSCOPES)}

NECESSARY GUIDE TUBES:

From PWC for PW 100 series:1. Guide tube (movable) (thermo couple port) PWC No. 34910-802

[ for LPT blades and vane ring, 1st and 2nd stage HPT blades and stator ]

2. Guide tube (rigid) (fuel nozzle ports) PWC No. 34910-800[ HPT blades and vane ring throughout the comustion chamber ]

From PWC for PT6 A series:Guide tube (rigid) PWC No. 34910-200 (for engines PT6A-10 to PT6A-36 and -110 to -135A)Guide tube (rigid) PWC No. 34910-400 (for engines PT6A-38 to PT6A-50)Guide tube (rigid) PWC No. 34910-600 (for engines PT6A-60 to PT6A-67)[for the compressor turbine vane rings and the cooling rings and dome section of the combution chamber liner]

X.99.3 TG 12.40

JT 9 D

PRATT & WHITNEY ENGINEJT 9 D - 7R4 / -7RQ

BORESCOPE-KIT

WOLF kit no. 1.00900.22

Designation of equipment WOLF cat. no.

Borescope probe I, ∅ 8 mm, 90°, (low magnification)

Borescope probe II, ∅ 8 mm, 80° (low magnification)

Borescope probe III, ∅ 10 mm, 80° (low magnification)

Borescope probe rigid, Ø 10 mm, 90° (high magnification)

OPTIONAL for probes #3 and #4:Svwivel prism Borescope, Ø 9.4 mm, 50° - 120°

Angled adapter movable 0°-150°

Light projector TLX-2 Xenon (high intensity)Spare lamp Xenon 180W

Light transmitting cable, 3 m long (10ft)

Carrying case for light projectorCarrying case for optics and accessories

6.08030.093

6.08050.083

6.10050.083

6.10052.093

(8.94050.09)

1.48000.96

2.51240.0012412.115

1.40633.50

3.51210.903.13001.06

Flexible Fiber-Borescope TF-6, with changeable objective heads (accessory), light cable 2.3 m long and carrying case

Objective head 0° / 60°Objective head 90° / 60°

Joint support arm compl. (for fixing the Fiber-Borescope during use)

7.63200.002

7.00063.607.00063.69

1.29100.00

{Technical data for the borescopes please see our coloured catalogue RIGID BORESCOPES,for light projector and accessories please see our coloured catalogue ACCESSORIES,for flexible Fiber-Borescope please see our coloured catalogue FLEX. TECHNOSCOPES (FIBERSCOPES)}

X.99.2 TG 12.32

PW 2000

PRATT & WHITNEY ENGINEPW 2000 series

BORESCOPE-KIT(acc. P&W spec.no. CTE 7182)

WOLF kit no. 1.00237.22

Designation of equipment WOLF cat. no.

Borescope probe I, swivel prism, ∅ 9.4 mm, DOV 50°-120°, (high magnification)

Borescope probe II, ∅ 6 mm, 90° (low magnification)

Angled adapter movable 0°-150°

Magnification adapter 2.2x

Light projector TLX-2 Xenon (high intensity)Spare lamp Xenon 180W

Light transmitting cable, 3 m long (10ft)

Carrying case for light projectorCarrying case for optics and accessories

8.94050.09

6.06047.093

1.48000.96

1.50200.00

2.51240.0012412.115

1.40633.50

3.51210.903.13001.06

Flexible Fiber-Borescope TF-6 with changeable objective heads (accessory), light cable 2.3 m long and carrying case

Objective head 0° / 60°Objective head 90° / 60°

Joint support arm compl. (for fixing the Fiber-Borescope during use)

7.63200.002

7.00063.607.00063.69

1.29100.00

{Technical data for the borescopes please see our coloured catalogue RIGID BORESCOPES,for light projector and accessories please see our coloured catalogue ACCESSORIES,for flexible Fiber-Borescope please see our coloured catalogue FLEX. TECHNOSCOPES (FIBERSCOPES)}

X.99.2 TG 12.31

PW 4000

PRATT & WHITNEY ENGINEPW 4000 series

BORESCOPE-KITP & W ref no. CTE 6181 / Dwg.no. PWA 85848

WOLF kit no. 1.00400.22

Designation of equipment WOLF cat. no.

Swivel prism Borescope, ∅ 9.4 mm (high magnif.)Borescope rigid, ∅ 6.7 mm ( low magnification)

Magnification adapter 2.2x (option)Angled adapter 0° - 150° movable

Light projector TLX-2 Xenon (high intensity)Spare lamp Xenon 180W

Light transmitting cable

Alu-carrying case for probes and accessories andTLX-2 light projector

8.94050.096.67070.083

(1.50200.00)1.48000.96

2.51240.0012412.115

1.40633.50

3.13000.08

FLEXIBLE FIBER-BORESCOPE KIT

Designation of equipment WOLF cat. no.

Flexible Fiber-Borescope TF-6 with changeable objective heads and PVC carrying case

Objective head side 90° / field 30°Objective head direct. 0° / field 60°Objective head side 90° / field 60°

Joint support arm compl.

7.63200.002

7.00063.397.00063.607.00063.69

1.29100.00(consists of 1x 1.29100.10 and 2x 1.29100.20)

{Technical data for the borescopes please see our catalogue RIGID BORESCOPES,for light projector and accessories please see our catalogue ACCESSORIES,for flexible Fiber-Borescope please see catalogue FLEX. TECHNOSCOPES (FIBERSCOPES)}

XII.99.GB2 (IV.05) TG 12.30

JT 8 D

PRATT & WHITNEY ENGINEJT 8 D, JT8D-200

BORESCOPE-KIT

WOLF kit no. 1.00800.22

Designation of equipment WOLF cat. no.

Borescope probe I, ∅ 5.5 mm, 90°, 495 mm lg. (low magnification)

Borescope probe II, ∅ 8 mm, 80°, 500 mm lg. (low magnification)

Borescope probe III, ∅ 10 mm, 90°, 520 mm lg (high magnification)

Angled adapter movable 0°-150°

Magnification adapter 2.2x

Light projector TLX-2 Xenon (high intensity)Spare lamp Xenon 180W

Light transmitting cable, 3 m long (10ft)

Carrying case for light projectorCarrying case for optics and accessories

6.55049.09

6.08050.083

6.10052.093

1.48000.96

1.50200.00

2.51240.0012412.115

1.40633.50

3.51210.903.13001.06

COMBUSTION CHAMBER INSPECTION KIT MJ 072000 (Model MACHIDA)

Special flexible Fiber-Borescope kit,designed and P&W approved for JT8D:consisting of:

Flexible Fiber Borescope, Ø 7 mm, length 2000 mm, 4-way angulation each 180°Flexible Guide Tube, Ø 12 mm, length 1500 mm, 4-way angulation each 100°Accessory kit, incl. support arm, friction plates, for all versions of JT8D, scope holder, sliding carrier.Aluminium carrying case for the compl. kit

FB7-2000A

GT12-1500

SAH-1000

CR-1000

{Technical data for the borescopes please see our coloured catalogue RIGID BORESCOPES,for light projector and accessories please see our coloured catalogue ACCESSORIES,for flexible Combustion Chamber Inspection Kit please see our special leaflet.}

X.99.2 TG 12.33

Richard WOLF GmbH, Postbox 1165, D-75434 Knittlingen, Germany,Tel.: +49-(0)7043-35-222, Fax: +49-(0)7043-35-1220, Email: riwotech@richard-wolf.com

PT6 / PW 100

PRATT & WHITNEY CANADA ENGINEPT6 / PW100

BORESCOPE-KIT

WOLF kit no. 1.00100.22

Designation of equipment WOLF cat. no.

Flex. Fiber-Borescope TF-5, ∅ 5 mm, working length 1040 mm (OEM), 4-way angulation 2 x 180° and 2 x 140°

or the similar but length 1,300 mm

Light projector TLX-2 Xenon 180 W (highintensity)Spare lamp Xenon 180W

Joint support arm, compl.

Carrying case for the Light sourceCarrying case for the Fiber-Borescope is incl.

7.05104.002

7.05130.002 (the longer alternative)

2.51240.0012412.115

1.29100.00

3.51210.90--

{Technical data for light projector and accessories please see our coloured catalogue ACCESSORIES,for flexible Fiber-Borescope please see our coloured catalogue FLEX. TECHNOSCOPES (FIBERSCOPES)}

NECESSARY GUIDE TUBES:

From PWC for PW 100 series:1. Guide tube (movable) (thermo couple port) PWC No. 34910-802

[ for LPT blades and vane ring, 1st and 2nd stage HPT blades and stator ]

2. Guide tube (rigid) (fuel nozzle ports) PWC No. 34910-800[ HPT blades and vane ring throughout the comustion chamber ]

From PWC for PT6 A series:Guide tube (rigid) PWC No. 34910-200 (for engines PT6A-10 to PT6A-36 and -110 to -135A)Guide tube (rigid) PWC No. 34910-400 (for engines PT6A-38 to PT6A-50)Guide tube (rigid) PWC No. 34910-600 (for engines PT6A-60 to PT6A-67)[for the compressor turbine vane rings and the cooling rings and dome section of the combution chamber liner]

X.99.3 TG 12.40