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Non-Destructive Testing

by Logu Sn
Type: NoteInstitute: Sns college of technology Course: B.Tech Specialization: Mechanical EngineeringOffline Downloads: 2Views: 158Uploaded: 1 month agoAdd to Favourite

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Logu Sn
Logu Sn
This copy is a reprint which includes current pages from Change 1. *TM 1-1500-204-23-7 TECHNICAL MANUAL AVIATION UNIT MAINTENANCE (AVUM) AND AVIATION INTERMEDIATE MAINTENANCE (AVIM) MANUAL FOR GENERAL AIRCRAFT MAINTENANCE (NONDESTRUCTIVE TESTING AND FLAW DETECTION PROCEDURES AND PRACTICES) VOLUME 7 *This manual together with TM 1-1500-204-23-1 through TM 1-1500-204-23-6 and TM 1-1500-204-23-8 through TM 11500-204-23-10, dated 31 July 1992, supersedes TM 55-1500-204-25/1, dated 6 April 1970, including all changes. DISTRIBUTION STATEMENT A: Approved for public release; distribution Is unlimited. H E A D Q U A R T E R S , D E P A R T M E N T 3 1 J U L Y 1 9 9 2 O F T H E A R M Y
TM 1-1500-204-23-7 C1 CHANGE NO. HEADQUARTERS DEPARTMENT OF THE ARMY WASHINGTON, D.C., 30 December 1993 1 AVIATION UNIT MAINTENANCE (AVUM) AND AVIATION INTERMEDIATE MAINTENANCE (AVIM) MANUAL FOR GENERAL AIRCRAFT MAINTENANCE (NONDESTRUCTIVE TESTING AND FLAW DETECTION PROCEDURES AND PRACTICES) VOLUME 7 DISTRIBUTION STATEMENT A: Approved for public release; distribution is unlimited. TM 1-1500-204-23-7, 31 July 1992, is changed as follows: 1. Remove and insert pages as indicated below. New or changed text material' is indicated by a vertical bar in the margin. An illustration change is indicated by a miniature pointing hand. Remove pages Insert pages i and ii 1-1/(1-2 blank) i and ii 1-1/(1-2 blank) 2. Retain this sheet in front of manual for reference purposes.
By Order of the Secretary of the Army: GORDON R. SULLIVAN General, United States Army Chief of Staff Official: MILTON H. HAMILTON Administrative Assistant to the Secretary of the Army 05900 Distribution: To be distributed in accordance with DA Form 12-31-E, block no. 3302, requirements for TM 1-1500-204-2 U.S. GOVERNMENT PRINTING OFFICE: 1994 - 510-106-00002
TM 1-1500-204-23-7 PRECAUTIONARY DATA Personnel performing Instructions involving operations, procedures, and practices which are included or implied in this technical manual shall observe the following Instructions. Disregard of these warnings and precautionary information can cause serious Injury, death, or an aborted mission. WARNINGS, CAUTIONS, and NOTES are means of attracting attention to essential or critical information in a manual. Definitions are outlined as follows: WARNING: An operating or maintenance procedure, practice, condition, statement, etc., which if not strictly observed, could result in injury or death of personnel. CAUTION: An operating or maintenance procedure, practice, condition, statement, etc., which if not strictly observed, could result in damage to, or destruction of, equipment or loss of mission effectiveness or long term health hazards to personnel. NOTE. An essential operating or maintenance procedure, condition, or statement, which must be highlighted. WARNING ELECTRICAL TESTS Electrical power up to 500 volts is used in testing the equipment. Exercise extreme caution during these tests. ELECTRICAL EQUIPMENT All switches and electrical equipment shall be of the enclosed explosion-proof type. grounded to avoid the danger of Igniting test fluid fumes or creating electrical shock. All metal apparatus shall be USING SOLVENTS/PAINTS Standard precautions such as fire prevention and adequate ventilation shall be exercised when using solvents or applying primer and coating Wear gloves or gauntlets when handling solvents as solvents may cause skin disorders. Cements and solvents used to repair liferafts are flammable and shall be treated as such Never smoke or permit any type of open flame near when using cements or solvents. Dichloromethane (methylene chloride) vapor is heavier than air; adequate ventilation shall be provided for working personnel. Dichloromethane (methylene chloride) is toxic when vapors are inhaled over an extended period of time. Acrylic monomer and polymer base adhesive, MIL-A-8576, contains a volatile liquid which may prove toxic when vapors are inhaled over extended periods. Use only with adequate ventilation. Observe fire precautions when using aliphatic naphtha, Federal Specification TT-N-95. a

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