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NOTE: Indications of defects can be lost by too much____
ú solvent spraying.
ú
ú
ú S 232-033-C00
ú (4) Application of Developer
ú
ú
WARNING: AVOID BREATHING OF VAPORS. IF YOU DO NOT OBEY THIS_______
ú INSTRUCTION, INJURY CAN OCCUR.
ú
ú (a) Apply developer by spray only to a dry part at ambient
ú temperature.
ú
ú
NOTE: When you use an aerosol container, follow the____
ú manufacturer's directions.
ú
ú 1) Hold the spray nozzle about 8-10 inches (200-250 mm) from
ú the part surface and apply a fine thin coating.
ú 2) Normally two passes are adequate.
ú 3) Coverage should be uniform and a metallic background should
ú be visible through the developer.
ú (b) Allow ten minutes for developer to absorb penetrant.
ú
ú S 232-034-C00
ú (5) Inspection of Parts
ú
ú
CAUTION: THE USE OF HIGH INTENSITY (125 WATT) ULTRAVIOLET BULBS_______
ú WHICH EMIT AN EXCESS AMOUNT OF WHITE LIGHT WILL AFFECT THE
ú SENSITIVITY OF THE FLUORESCENT PENETRANT PROCESS. USE
ú ONLY BULBS CERTIFIED BY THE NDT ORIGINAL EQUIPMENT
ú MANUFACTURER AS HAVING PASSED THEIR IN-HOUSE INSPECTION.
ú IN ADDITION, THESE HIGH INTENSITY BULBS SHOULD BE
ú PERIODICALLY TESTED FOR WHITE LIGHT EMISSION.
ú
ú (a) Point the ultraviolet light on the part while in the inspection
ú booth or darkroom.
ú (b) Inspect to limits specified for the parts.
ú (c) Inspect questionable indications as follows:
ú
ú
WARNING: CLEANING SOLVENTS ARE FLAMMABLE, VOLATILE, AND TOXIC._______
ú THEY SHOULD BE USED IN ADEQUATE VENTILATION. AVOID
ú PROLONGED BREATHING OF VAPORS AND REPEATED OR
ú PROLONGED CONTACT WITH SKIN OR CLOTHING.
ú
ú 1) Wipe area once with solvent using a cotton swab or
ú fine-hair art brush.
EFFECTIVITYùùùùùùùùùùùùùùùùùùùùùùùùùùùùùù. ú
70-40-01
ALL ú ú C02.1 Page 205 ú Jul 12/02
BOEING PROPRIETARY - Copyright (C) - Unpublished Work - See title page for details.
////////////////////////A / /
CFM56 ENGINES
737-300/400/500/ /MAINTENANCE MANUAL ////////////////////////
ú 2) Apply developer to suspected area after solvent has dried.
ú 3) Inspect under ultraviolet light.
ú a) Indications that show again in two minutes shall be
ú considered as valid indications.
ú 4) If indications do not show again, inspect the part under
ú white light with a 10-power magnifying lens.
ú (d) Identify the location of defects with approved marking method.
ú
ú S 232-035-C00
ú (6) Cleaning of Parts after Inspection
ú
ú
CAUTION: ALL RESIDUAL PENETRANTS AND DEVELOPER MATERIAL MUST BE_______
ú REMOVED FROM PART AS SOON AS POSSIBLE. MATERIAL NOTE
ú REMOVED CAN CAUSE SEVERE CORROSION OF PARTS AT HIGH
ú TEMPERATURES AND PROBLEMS DURING WELDING.
ú
ú WHEN YOU CLEAN PARTS MADE OF TITANIUM OR TITANIUM ALLOYS
ú WITH SOLVENT, USE ONLY SOLVENTS THAT DO NOT INCLUDE
ú HALOGENS.
ú
ú WHEN YOU CLEAN PARTS MADE OF TITANIUM OR TITANIUM ALLOYS
ú WITH WATER, USE ONLY DEIONIZED WATER.
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