Job Instruction Card 

535100 DVI 10097 

CUSTOMER: EFFECTIVITY:ATR42 42-400 42-500 DATE: 09/02/12 PAGE 1 

DVI OF FR26 FLOOR BEAM 

AROUND CUT-OUTS FOR 

COOLING & HYDRAU DUCTS 

TECHNICAL DATA

 ZONING DATA

 ZONE: 133, 134 

ACCESS: 241BF, 241CF, 242BF, 242CF 

 PREPARATION

 

 WORK : SKILL MEN MAN-HOURS 

 

 

ELAPSED TIME : 

GSE : 

 SPARE : 

 EXPENDABLE : 

 BULK MATERIAL : 

 PUBLICATION 

 JIC : 252121-RAI-10000 REMOVAL AND INSTALLATION 

 OF PASSENGER SEATS 

 JIC : 252821-RAI-10000 REMOVAL AND INSTALLATION 

 OF PASSENGER COMPARTMENT 

 FLOOR COVERING 

 

 JIC : 122351-PRO-10000 STRUCTURE CORROSION 

 PROTECTION 

 

 

 

 

TASK DESCRIPTION

001 GENERAL INFORMATION CONCERNING THE 

INSPECTION 

1. THIS CARD PROVIDES THE INFORMATION 

 NECESSARY FOR PERFORMING SCHEDULED 
 Job Instruction Card 

535100 DVI 10097 

CUSTOMER: EFFECTIVITY:ATR42 42-400 42-500 DATE: 09/02/12 PAGE 2 

 MAINTENANCE TASKS RESULTING FROM THE MSG-3 

 ANALYSIS DEFINED FOR THE DETAILED VISUAL 

 INSPECTION OF FLOOR BEAM AT FRAME 26 AROUND 

 CUT-OUTS FOR E/E COOLING DUCTS AND HYDRAULIC 

 PIPE INSTALLATIONS. 

 

2. THIS INFORMATION CONCERNS PREPARATION, 

 ACCESS AND INSPECTION PROCEDURE. 

 A. REMINDER - TYPES OF DAMAGES TO LOOK FOR: 

 - CRACK 

 - CORROSION 

 - SCRATCH, SCORE AND ABRASION 

 - DENTS 

 B. "DETAILED VISUAL INSPECTION" ONLY 

 ARE ADRESSED IN THIS CARD. WHEN EXISTING, 

 "SPECIAL DETAILED INSPECTION" (SDI) 

 ARE ADRESSED IN THE "NON 

 DESTRUCTIVE TESTING MANUAL" (NDTM). 

3. STRUCTURALLY SIGNIFICANT ITEM (SSI) COVERED 

 BY THE PRESENT CARD IS 53-51-50. 

 

4. THE ALLOWABLE DAMAGES ARE GIVEN IN SRM 

 CHAPTER 53-51-00 PAGE BLOCK 300. 

002 REMOVAL OF PASSENGER COMPARTMENT SEATS 

SEE JOB INSTRUCTION CARD 

252121-RAI-10000 

003 REMOVAL OF PASSENGER COMPARTMENT FLOOR 

COVERING 

SEE JOB INSTRUCTION CARD 

252821-RAI-10000 

004 CLEANING 

1. PRIOR TO INSPECTION, CLEAN THE AREA WITH 

 APPROPRIATE TOOLING AS REQUIRED TO 

 ACCOMPLISH VISUAL INSPECTION (USE AUTHORIZED 

 PRODUCT ONLY) (REF. AMM 20-31-00). 

2. - REMOVE THE E/E COOLING DUCTS 

 - REMOVE THE SEALANT/LEVELING AND CORROSION 

 INHIBITING COMPOUNDS AT AREAS TO BE INSPECTED.

 NOTE: DO NOT USE METALLIC SCRAPERS FOR 

 REMOVAL (REF. SRM 51-22-02). 

 PAY ATTENTION DURING REMOVAL 

 NOT TO DAMAGE PROTECTION AND NOT TO 

 CAUSE ACCIDENTAL DETERIORATION. 

005 DETAILED VISUAL INSPECTION 

REF. FIG. 535100 DVI 00107 

REF. FIG. 535100 DVI 00197 
 Job Instruction Card 

535100 DVI 10097 

CUSTOMER: EFFECTIVITY:ATR42 42-400 42-500 DATE: 09/02/12 PAGE 3 

PERFORM THE DETAILED VISUAL INSPECTION OF 

FORWARD AND AFT SURFACES OF THE FLOOR BEAM 

AT FRAME 26 AROUND CUT-OUTS FOR E/E COOLING 

DUCTS AND HYDRAULIC PIPES INSTALLATION. 

006 DAMAGE EVALUATION 

REF. FIG. 530000 DVI 00100 

IF DAMAGE OTHER THAN ALLOWABLE CORROSION OR 

SCRATCHES CAN BE FOUND (PARTICULARLY CRACK 

INDICATION STARTING FROM EDGE OF THE CUT-OUT 

FOR E/E COOLING DUCTS AND/OR HYDRAULIC PIPES 

INSTALLATION): 

1. SEND A REPORT TO ATR STRUCTURES ENGINEERING. 

2. WAIT FOR SPECIFIC INSTRUCTIONS BEFORE 

 RELEASING THE AIRCRAFT BACK IN OPERATION. 

007 PROTECTION 

 

SEE JIC:122351-PRO-10000 

1. IF DURING SEALANT REMOVAL, THE PROTECTION 

 HAS BEEN DAMAGED, TOUCH UP THE AREA PER SRM 

 51-21-17 (ALODINE SPRAY ON EXTERNAL ZONE), 

 SRM 51-21-18 (ALODINE ON INTERNAL SURFACE), 

 SRM 51-21-27 (PRIMER + TOP COAT ON EXTERNAL 

 SURFACE) AND/OR SRM 51-21-28 (PRIMER + TOP 

 COAT ON INTERNAL SURFACE). 

 NOTE:FOR ANY ACCIDENTAL SCRATCH/DAMAGE CREATED 

 DURING SEALANT REMOVAL, REFER TO THE SRM. 

2. IF CORROSION INHIBITING COMPOUND HAS BEEN 

 REMOVED,RE-APPLY IT PER JIC 122351-PRO-10000 

 A. REMEMBER THAT A DOUBLE PROTECTION OF 

 CORROSION INHIBITION(AV8 + AV100) IS 

 RECOMENDED ON GALLEYS, TOILETS AREAS, ENTRY 

 DOOR, CARGO DOOR AREAS AND INTERNAL FLAP 

 METALLIC STRUCTURE AS PER 

 JIC 122351-PRO-10000. 

 B. WARNING 

 WHEN APPLYING CORROSION INHIBITING 

 COMPOUND, IT IS IMPERATIVE TO FOLLOW 

 HEALTH & SAFETY PROCEDURES: 

 - NO INHALATION, NO EYE CONTACT, NO SKIN 

 CONTACT, AND NO INGESTION. 

 - USE PROTECTIVE GLOVES MADE OF NEOPRENE OR 

 NITRILE. 

 - SUITABLE RESPIRATORY PROTECTION MUST BE 

 USED 

 - PROTECTIVE EYEWEAR. 

 - CORROSION INHIBITOR CONTAINS FLAMMABLE 

 COMPONENT; DO NOT EXPOSE THESE MATERIALS 

 TO OPEN FLAME, ACTIVE CIRCUITS, OR OTHER 
 Job Instruction Card 

535100 DVI 10097 

CUSTOMER: EFFECTIVITY:ATR42 42-400 42-500 DATE: 09/02/12 PAGE 4 

 COMPONENTS WHERE A POTENTIAL FOR FIRE 

 HAZARD WOULD EXIST. 

 - THE VOLATILE CARRIER IS ALSO FLAMMABLE. 

 MAINTAIN SAFETY PRECAUTIONS UNTIL THE 

 CARRIER HAS FULLY EVAPORATED. 

 C. RECOMMENDED APPLICATION FOR THE AREAS 

 WITH HIGH POTENTIAL FOR SEVERE CORROSION 

 ARE IDENTIFIED IN THE SPECIFIC CARD. 

 D. CORROSION INHIBITING COMPOUND MUST NOT BE 

 APPLIED IN THE FOLLOWING AREAS: 

 - CABLE,PULLEYS, WIRING, PLASTICS, 

 ELASTOMERS, OXYGEN SYSTEMS. 

 - LUBRICATED OR TEFLON SURFACES (E.G. 

 GREASED JOINTS, SEALED BEARINGS). 

 - INSULATION BLANKETS. 

 - AREAS WITH ELECTRICAL ARC POTENTIAL. 

 - ENGINE AREA. 

 - ALL OTHER STRUCTURES WHERE THE 

 TEMPERATURE EXCEEDS 220 DEG. F. 

008 INSTALLATION OF PASSENGER COMPARTMENT 

FLOOR COVERING 

SEE JOB INSTRUCTION CARD 

252821-RAI-10000 

009 INSTALLATION OF PASSENGER COMPARTMENT SEATS 

SEE JOB INSTRUCTION CARD 

252121-RAI-10000 

010 CLOSE-UP 

1. MAKE CERTAIN THAT THE WORKING AREA IS CLEAN 

 AND CLEAR OF TOOLS AND MISCELLANEOUS ITEMS 

 OF EQUIPMENT. 

2. MAKE CERTAIN THAT NO DAMAGE HAS RESULTED 

 FROM REMOVAL/INSTALLATION AND INSPECTION 

 OPERATIONS. 

011 FILLING-UP THE INSPECTION DATA FORM 

REF. FIG. 530000-DVI-00100 

1. IF ANY DAMAGE IS DETECTED COMPLETE THE 

 “IN SERVICE FINDINGS REPORTING FORM” AND 

 SEND IT TO ATR STRUCTURES ENGINEERING. 
 Job Instruction Card 

535100 DVI 10097 

CUSTOMER: EFFECTIVITY:ATR42 42-400 42-500 DATE: 09/02/12 PAGE 5 

Figure: 535100 DVI 00107 

DETAILED VISUAL

INSPECTION AREA
 Job Instruction Card 

535100 DVI 10097 

CUSTOMER: EFFECTIVITY:ATR42 42-400 42-500 DATE: 09/02/12 PAGE 6 

Figure: 535100 DVI 00197 

DETAILED VISUAL

INSPECTION AREA
 Job Instruction Card 

535100 DVI 10097 

CUSTOMER: EFFECTIVITY:ATR42 42-400 42-500 DATE: 09/02/12 PAGE 7 

Figure: 530000 DVI 00100 

INSPECTION DATA FORM