AC 43.13-1B

Change 1, editorial update

Advisory circular · Acceptable Methods, Techniques, and Practices—Aircraft Inspection and Repair

Approved
September 27, 2001
Last reviewed
May 10, 2024
This change
Editorial Update to AC 43.13-1B CHG 1.
Family
AC 43.13-1 · 7 versions
Revision
B, change 1
14 CFR parts
43, 65, 23, 105, 25, 91
Cited by
95 ADs

Guidance, not mandatory unless a rule or AD requires it. DRS record last changed November 21, 2025.

Show pages 1–7
Page 8 · viiiOpen in PDF

4-114. FIRE PROTECTION4-95

4-115. PROTECTIVE APPAREL4-95

4-116. FIRST-AID KITS4-96

4-117.–4-128. [RESERVED.]4-96

CHAPTER 5. NONDESTRUCTIVE INSPECTION (NDI)5-1

SECTION 1. GENERAL5-1

5-1. GENERAL5-1

5-2. APPROVED PROCEDURES5-1

5-3. NDT LEVELS5-1

5-4. TRAINING, QUALIFICATION, AND CERTIFICATION5-2

5-5. FLAWS5-2

5-6. SELECTING THE NDI METHOD5-6

5-7. TYPES OF INSPECTIONS5-8

5-8.–5-14. [RESERVED.]5-8

SECTION 2. VISUAL INSPECTION5-9

5-15. GENERAL5-9

5-16. SIMPLE VISUAL INSPECTION AIDS5-9

5-17. BORESCOPES5-10

5-18. VISUAL INSPECTION PROCEDURES5-11

5-19.–5-24. [RESERVED.]5-13

SECTION 3. EDDY CURRENT INSPECTION5-14

5-25. EDDY CURRENT INSPECTION5-14

5-26. EDDY CURRENT COILS AND PROBES5-15

5-27. FIELD APPLICATION OF EDDY CURRENT INSPECTION5-16

5-28. SURFACE INSPECTION5-16

5-29. SUBSURFACE INSPECTION5-17

5-30. CORROSION INSPECTION5-18

5-31. ESTABLISHING EDDY CURRENT INSPECTION PROCEDURES5-18

5-32.–5-39. [RESERVED.]5-19

SECTION 4. MAGNETIC PARTICLE INSPECTION5-20

5-40. GENERAL5-20

5-41. PRINCIPLES OF OPERATION5-20

5-42. APPLICATIONS5-21

5-43. ELECTRICAL MAGNETIZING EQUIPMENT5-21

5-44. MATERIALS USED IN MAGNETIC PARTICLE INSPECTION5-22

5-45. PREPARATION OF SURFACE5-24

5-46. METHODS OF EXAMINATION5-25

5-47. APPLICATION OF MAGNETIC PARTICLES5-25

5-48. MAGNETIZATION5-25

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5-49. DETERMINATION OF FIELD STRENGTH5-28

5-50. SPECIAL EXAMINATION TECHNIQUES5-28

5-51. DEMAGNETIZATION AND POST-EXAMINATION CLEANING5-30

5-52.–5-59. [RESERVED.]5-31

SECTION 5. PENETRANT INSPECTION5-32

5-60. GENERAL5-32

5-61. EQUIPMENT USED IN THE PENETRANT INSPECTION PROCESS5-33

5-62. BASIC STEPS TO PERFORM PENETRATION INSPECTION5-34

5-63. CLEANERS AND APPLICATIONS5-37

5-64. TECHNICAL STANDARDS5-38

5-65.–5-72. [RESERVED.]5-39

SECTION 6. RADIOGRAPHY (X-RAY) INSPECTION5-40

5-73. GENERAL5-40

5-74. LIMITATIONS5-40

5-75. FILM OR PAPER RADIOGRAPHY5-40

5-76. REAL-TIME RADIOGRAPHY5-41

5-77. ADVANTAGE OF REAL-TIME RADIOGRAPHY OVER

FILM RADIOGRAPHY5-41

5-78. COMPUTED TOMOGRAPHY (CT)5-41

5-79. USES OF RADIOGRAPHY5-41

5-80. COMPARISON WITH OTHER NDI METHODS5-41

5-81. FLAWS5-42

5-82. FIELD INSPECTION5-42

5-83. SAFETY5-42

5-84.–5-88. [RESERVED.]5-42

SECTION 7. ULTRASONIC INSPECTION5-43

5-89. GENERAL5-43

5-90. SOUND REFLECTION5-43

5-91. ULTRASONIC INSPECTION TECHNIQUES5-44

5-92. FLAW DETECTION5-44

5-93. BASIC EQUIPMENT5-45

5-94. INSPECTION OF BONDED STRUCTURES5-47

5-95. BOND TESTING INSTRUMENTS5-52

5-96. THICKNESS MEASUREMENTS5-53

5-97. LEAK TESTING5-54

5-98.–5-104. [RESERVED.]5-54

SECTION 8. TAP TESTING5-55

5-105. GENERAL5-55

5-106.–5-111. [RESERVED.]5-55

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SECTION 9. ACOUSTIC-EMISSION5-56

5-112. GENERAL5-56

5-113. APPLICATIONS5-56

5-114.–5-119. [RESERVED.]5-56

SECTION 10. THERMOGRAPHY5-57

5-120. GENERAL5-57

5-121.–5-126. [RESERVED.]5-57

SECTION 11. HOLOGRAPHY5-58

5-127. GENERAL5-58

5-128.–5-133. [RESERVED.]5-58

SECTION 12. SHEAROGRAPHY5-59

5-134. GENERAL5-59

5-135.–5-140. [RESERVED.]5-59

CHAPTER 6. CORROSION, INSPECTION, AND PROTECTION6-1

SECTION 1. GENERAL6-1

6-1. GENERAL6-1

6-2. FACTORS INFLUENCING CORROSION6-2

6-3. COMMON CORROSIVE AGENTS6-3

6-4. MICRO-ORGANISMS6-4

6-5.–6-10. [RESERVED.]6-4

SECTION 2. TYPES OF CORROSION6-5

6-11. GENERAL6-5

6-12. GENERAL SURFACE CORROSION6-5

6-13. PITTING CORROSION6-5

6-14. CONCENTRATION CELL CORROSION6-6

6-15. ACTIVE-PASSIVE CELLS6-7

6-16. FILIFORM CORROSION6-8

6-17. INTERGRANULAR CORROSION6-8

6-18. EXFOLIATION CORROSION6-9

6-19. GALVANIC CORROSION6-10

6-20. STRESS CORROSION CRACKING6-10

6-21. FATIGUE CORROSION6-12

6-22. FRETTING CORROSION6-12

6-23.–6-28. [RESERVED.]6-13

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SECTION 3. CORROSION PROTECTION MEASURES FOR BASIC MATERIALS6-14

6-29. GENERAL6-14

6-30. ANODIZING AND RELATED PROCESSES6-14

6-31. PLATING6-14

6-32. PHOSPHATE RUST-PROOFING6-14

6-33. CHROME-PICKLE TREATMENT6-14

6-34. DICHROMATE TREATMENT6-14

6-35. STANNATE IMMERSION TREATMENT6-15

6-36. GALVANIC ANODIZING TREATMENT6-15

6-37. CLADDING6-15

6-38. METAL SPRAYING6-15

6-39. SHOT-PEENING6-15

6-40. ORGANIC COATINGS6-15

6-41. DOPE PROOFING6-15

6-42. TUBE INTERIORS6-15

6-43.–6-49. [RESERVED.]6-15

SECTION 4. CORROSION PREVENTIVE MAINTENANCE6-16

6-50. GUIDELINES: ALL AIRCRAFT6-16

6-51. GUIDELINES: AIRCRAFT OPERATING OVER SALTWATER6-16

6-52.–6-62. [RESERVED.]6-17

SECTION 5. VISUAL CORROSION INSPECTION GUIDE FOR AIRCRAFT6-18

6-63. GENERAL6-18

6-64. EXHAUST TRAIL AREAS6-18

6-65. BATTERY COMPARTMENTS AND BATTERY VENT OPENINGS6-18

6-66. LAVATORIES AND GALLEYS6-18

6-67. BILGE AREAS6-18

6-68. WHEEL WELLS AND LANDING GEAR6-18

6-69. EXTERNAL SKIN AREAS6-18

6-70. WATER ENTRAPMENT AREAS6-19

6-71. ENGINE FRONTAL AREAS6-19

6-72. ELECTRONIC PACKAGE COMPARTMENTS6-19

6-73. FLEXIBLE HOSE ASSEMBLIES6-19

6-74. SANDWICH PANELS6-19

6-75. CONTROL CABLES6-19

6-76. INTEGRAL FUEL CELLS6-20

6-77. ELECTRICAL CONNECTORS6-20

6-78.–6-88. [RESERVED.]6-20

SECTION 6. CORROSION REMOVAL PROCEDURES6-21

6-89. GENERAL6-21

6-90. SAFETY PRECAUTIONS6-21

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6-91. CORROSION CONTROL WORK PROCEDURES6-22

6-92.–6-112. [RESERVED.]6-23

SECTION 7. BASIC CORROSION REMOVAL TECHNIQUES6-24

6-113. GENERAL6-24

6-114. PREPARATIONS FOR REWORK6-24

6-115. FAIRING OR BLENDING REWORKED AREAS6-24

6-116. CORROSION REMOVAL BY BLASTING6-28

6-117. CLEANERS, POLISHES, AND BRIGHTENERS6-28

6-118. STANDARD METHODS6-29

6-119.–6-131. [RESERVED.]6-29

SECTION 8. ALUMINUM AND ALUMINUM ALLOYS6-30

6-132. GENERAL6-30

6-133. SPECIAL TREATMENT OF ANODIZED SURFACES6-30

6-134. REPAIR OF ALUMINUM ALLOY SHEET METAL6-30

6-135. CORROSION REMOVAL AROUND COUNTERSUNK FASTENERS IN

ALUMINUM ALLOY6-31

6-136. EXAMPLES OF REMOVING CORROSION FROM ALUMINUM AND

ALUMINUM ALLOYS6-31

6-137.–6-147. [RESERVED.]6-34

SECTION 9. MAGNESIUM AND MAGNESIUM ALLOYS6-35

6-148. GENERAL6-35

6-149. TREATMENT OF WROUGHT MAGNESIUM SHEETS AND FORGINGS6-35

6-150. REPAIR OF MAGNESIUM SHEET METAL AFTER EXTENSIVE

CORROSION REMOVAL6-35

6-151. IN-PLACE TREATMENT OF MAGNESIUM CASTINGS6-36

6-152. EXAMPLE OF REMOVING CORROSION FROM MAGNESIUM6-36

6-153.–6-163. [RESERVED.]6-40

SECTION 10. FERROUS METALS6-41

6-164. GENERAL6-41

6-165. SPECIAL TREATMENT OF HIGH-STRENGTH STEEL6-41

6-166. SPECIAL TREATMENT OF STAINLESS STEEL6-41

6-167. EXAMPLE OF REMOVING CORROSION FROM FERROUS METALS6-42

6-168.–6-178. [RESERVED.]6-42

SECTION 11. OTHER METALS AND ALLOYS6-43

6-179. NOBLE METAL COATINGS CLEANUP AND RESTORATION6-43

6-180. COPPER AND COPPER ALLOYS6-43

6-181. TITANIUM AND TITANIUM ALLOYS6-43

6-182.–6-192. [RESERVED.]6-44

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SECTION 12. PLATED PARTS6-45

6-193. CHROMIUM AND NICKEL-PLATED PARTS6-45

6-194. CADMIUM AND ZINC-PLATED PARTS6-45

6-195.–6-205. [RESERVED.]6-45

SECTION 13. CORROSION PROOFING OF LAND PLANES CONVERTED TO

SEAPLANES6-46

6-206. GENERAL6-46

6-207. NECESSARY MINIMUM PRECAUTIONS6-46

6-208. RECOMMENDED PRECAUTIONS6-46

6-209.–6-219. [RESERVED.]6-47

SECTION 14. HANDLING AND CARE OF AIRCRAFT RECOVERED FROM WATER

IMMERSION6-48

6-220. GENERAL6-48

6-221. INITIAL FRESHWATER OR DETERGENT WASH6-48

6-222. RECIPROCATING ENGINES AND PROPELLERS6-48

6-223. AIRFRAME6-49

6-224.–6-234. [RESERVED.]6-49

CHAPTER 7. AIRCRAFT HARDWARE, CONTROL CABLES, AND TURNBUCKLES7-1

SECTION 1. RIVETS7-1

7-1. GENERAL7-1

7-2. MATERIAL APPLICATIONS7-1

7-3.–7-13. [RESERVED.]7-2

SECTION 2. SCREWS7-3

7-14. GENERAL7-3

7-15. STRUCTURAL SCREWS7-3

7-16. MACHINE SCREWS7-3

7-17. PAN HEAD SCREWS (NAS600 THROUGH NAS606, NAS610 THROUGH

NAS616, NAS623, AND NAS1402 THROUGH NAS1406)7-3

7-18. SELF-TAPPING SCREWS7-4

7-19. WOOD SCREWS7-4

7-20.–7-33. [RESERVED.]7-4

SECTION 3. BOLTS7-5

7-34. GENERAL7-5

7-35. BOLTS7-5

7-36. IDENTIFICATION7-5

7-37. GRIP LENGTH7-6

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7-38. LOCKING OR SAFETYING OF BOLTS7-6

7-39. BOLT FIT7-6

7-40. TORQUES7-7

7-41. STANDARD AIRCRAFT HEX HEAD BOLTS (AN3 THROUGH AN20)7-10

7-42. DRILLED HEAD BOLTS (AN73 THROUGH AN81)7-10

7-43. ENGINE BOLTS7-10

7-44. CLOSE-TOLERANCE BOLTS7-10

7-45. INTERNAL WRENCHING BOLTS

(NAS144 THROUGH NAS158 AND NAS172 THROUGH NAS176)7-10

7-46. INTERNAL WRENCHING BOLTS (MS20004 THROUGH MS20024) AND SIX HOLE, DRILLED SOCKET HEAD BOLTS (AN148551 THROUGH

AN149350)7-11

7-47. TWELVE-POINT, EXTERNAL WRENCHING BOLTS

(NAS624 THROUGH NAS644)7-11

7-48. CLOSE-TOLERANCE SHEAR BOLTS (NAS464)7-11

7-49. NAS6200 SERIES BOLTS7-11

7-50. CLEVIS BOLTS (AN21 THROUGH AN36)7-11

7-51. EYEBOLTS (AN42 THROUGH AN49)7-11

7-52.–7-62. [RESERVED.]7-11

SECTION 4. NUTS7-12

7-63. GENERAL7-12

7-64. SELF-LOCKING NUTS7-12

7-65. NUT IDENTIFICATION FINISHES7-13

7-66. CASTLE NUT (AN310)7-14

7-67. CASTELLATED SHEAR NUT (AN320)7-14

7-68. PLAIN NUT (AN315 AND AN335)7-14

7-69. LIGHT HEX NUTS (AN340 AND AN345)7-14

7-70. CHECKNUT (AN316)7-15

7-71. WINGNUTS (AN350)7-15

7-72. SHEET SPRING NUTS (AN365)7-15

7-73.–7-84. RESERVED7-15

SECTION 5. WASHERS7-16

7-85. GENERAL7-16

7-86. PLAIN WASHERS (AN960 AND AN970)7-16

7-87. LOCK WASHERS (AN935 AND AN936)7-16

7-88. BALL SOCKET AND SEAT WASHERS (AN950 AND AN955)7-16

7-89. TAPER PIN WASHERS (AN975)7-16

7-90.–7-100. [RESERVED.]7-16

SECTION 6. PINS7-17

7-101. TAPER PINS7-17

7-102. FLATHEAD PINS (AN392 THROUGH AN406)7-17

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7-103. COTTER PINS (AN380)7-17

7-104. SPRING PINS7-17

7-105. QUICK-RELEASE PINS7-17

7-106.–7-121. [RESERVED.]7-17

SECTION 7. SAFETYING7-18

7-122. GENERAL7-18

7-123. SAFETY WIRE7-18

7-124. SAFETY-WIRING PROCEDURES7-20

7-125. TWISTING WITH SPECIAL TOOLS7-21

7-126. SECURING OIL CAPS, DRAIN COCKS, AND VALVES7-21

7-127. SECURING WITH COTTER PINS7-25

7-128.–7-139. [RESERVED.]7-26

SECTION 8. INSPECTION AND REPAIR OF CONTROL CABLES AND

TURNBUCKLES7-27

7-140. GENERAL7-27

7-141. CABLE DEFINITIONS7-27

7-142. FLEXIBLE CABLES7-27

7-143. NYLON-COATED CABLES7-29

7-144. NONFLEXIBLE CABLES7-30

7-145. CABLE SPECIFICATIONS7-31

7-146. CABLE PROOF LOADS7-31

7-147. REPLACEMENT OF CABLES7-31

7-148. MECHANICALLY-FABRICATED CABLE ASSEMBLIES7-32

7-149. CABLE SYSTEM INSPECTION7-39

7-150. CORROSION AND RUST PREVENTION7-44

7-151. WIRE SPLICES7-45

7-152. CABLE MAINTENANCE7-45

7-153. CABLE TENSION ADJUSTMENT7-45

7-154.–7-164. [RESERVED.]7-46

SECTION 9. TURNBUCKLES7-47

7-165. GENERAL7-47

7-166. TURNBUCKLE INSTALLATION7-47

7-167. WITNESS HOLE7-48

7-168.–7-178. [RESERVED.]7-48

SECTION 10. SAFETY METHODS FOR TURNBUCKLES7-49

7-179. GENERAL7-49

7-180. DOUBLE-WRAP METHOD7-49

7-181. SINGLE-WRAP METHOD7-50

7-182. SAFETY WIRE SECURED TURNBUCKLES7-50

7-183. SPECIAL LOCKING DEVICES7-52

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7-184. ASSEMBLING AND SECURING CLIP-LOCKING TURNBUCKLES7-52

7-185.–7-195. [RESERVED.]7-53

SECTION 11. HARDWARE IDENTIFICATION TABLES7-54

7-196.–7-206. [RESERVED.]7-83

CHAPTER 8. ENGINES, FUEL, EXHAUST, AND PROPELLERS8-1

SECTION 1. ENGINES8-1

8-1. GENERAL8-1

8-2. SPECIAL INSPECTION8-1

8-3. CRANKSHAFT INSPECTION AND REPAIR REQUIREMENTS8-3

8-4. REPLACEMENT PARTS IN CERTIFICATED ENGINES8-4

8-5. OIL SYSTEM LINES INSPECTION8-4

8-6. OIL FILTER INSPECTION8-4

8-7. CYLINDER HOLD-DOWN NUTS AND CAP SCREWS8-4

8-8. REUSE OF SAFETYING DEVICES8-5

8-9. SELF-LOCKING NUTS FOR AIRCRAFT ENGINES AND ACCESSORIES8-5

8-10. METALLIZING8-5

8-11. PLATING8-5

8-12. CORROSION8-7

8-13. ENGINE RUN-IN8-7

8-14. COMPRESSION TESTING OF AIRCRAFT ENGINE CYLINDERS8-7

8-15. SPARK PLUGS8-10

8-16. OPERATIONAL PROBLEMS8-14

8-17. SPARK PLUG PRE-RECONDITIONING INSPECTION8-19

8-18. IGNITION HARNESSES INSPECTION8-19

8-19. MAGNETO INSPECTION8-20

8-20. MAGNETO-TO-ENGINE TIMING8-22

8-21.–8-29. [RESERVED.]8-22

SECTION 2. FUEL SYSTEMS8-23

8-30. GENERAL8-23

8-31. FUEL LINES AND FITTINGS8-23

8-32. FUEL TANKS AND CELLS8-24

8-33. FUEL TANK CAPS, VENTS, AND OVERFLOW LINES8-25

8-34. FUEL CROSS-FEED, FIREWALL SHUTOFF, AND TANK SELECTOR

VALVES8-25

8-35. FUEL PUMPS8-26

8-36. FUEL FILTERS, STRAINERS, AND DRAINS8-26

8-37. INDICATOR SYSTEMS8-26

8-38. FUEL SYSTEM PRECAUTIONS8-26

8-39.–8-44. [RESERVED.]8-27

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SECTION 3. EXHAUST SYSTEMS8-28

8-45. GENERAL8-28

8-46. MUFFLER/HEAT EXCHANGER FAILURES8-28

8-47. MANIFOLD/STACK FAILURES8-30

8-48. INTERNAL MUFFLER FAILURES8-31

8-49. INSPECTION8-33

8-50. REPAIRS8-35

8-51. TURBOSUPERCHARGER8-36

8-52. AUGMENTER SYSTEMS8-36

8-53.–8-70. [RESERVED.]8-36

SECTION 4. REPAIR OF METAL PROPELLERS8-37

8-71. GENERAL8-37

8-72. STEEL BLADES8-37

8-73. ALUMINUM PROPELLER REPAIRS8-37

8-74. REPAIR LIMITS8-40

8-75. STEEL HUBS AND HUB PARTS8-42

8-76. PROPELLER HUB AND FLANGE REPAIR8-42

8-77. CONTROL SYSTEMS8-43

8-78. DEICING SYSTEMS8-44

8-79.–8-90. [RESERVED.]8-44

SECTION 5. INSPECTION OF PROPELLERS8-45

8-91. GENERAL8-45

8-92. WOOD OR COMPOSITION PROPELLERS AND BLADES8-45

8-93. METAL PROPELLERS AND BLADES8-47

8-94. PROPELLER HUB8-48

8-95. TACHOMETER INSPECTION8-49

8-96.–8-106. [RESERVED.]8-49

SECTION 6. PROPELLER TRACKING AND VIBRATION8-50

8-107. GENERAL8-50

8-108. PROPELLER TRACKING CHECK8-50

8-109. VIBRATION8-51

8-110.–8-129. [RESERVED.]8-51

CHAPTER 9. AIRCRAFT SYSTEMS AND COMPONENTS9-1

SECTION 1. INSPECTION AND MAINTENANCE OF LANDING GEAR9-1

9-1. GENERAL9-1

9-2. GENERAL INSPECTION9-1

9-3. CLEANING AND LUBRICATING9-1

9-4. FIXED-GEAR INSPECTION9-2

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9-5. INSPECTION OF RETRACTABLE LANDING GEAR9-3

9-6. EMERGENCY SYSTEMS9-4

9-7. LANDING-GEAR COMPONENTS9-4

9-8. FLOATS AND SKIS9-6

9-9. INSPECTION AND REPAIR OF FLOATS AND SKIS9-8

9-10. TYPES OF LANDING-GEAR PROBLEMS9-9

9-11. SPECIAL INSPECTIONS9-11

9-12. RETRACTION TESTS9-11

9-13. TIRE AND TUBE MAINTENANCE9-11

9-14. TIRE INSPECTION AND REPAIR9-12

9-15. INFLATION OF TIRES9-13

9-16. PERSONAL SAFETY9-14

9-17. DISASSEMBLE THE WHEEL9-14

9-18. REASSEMBLING THE WHEEL9-15

9-19. SLIPPAGE9-15

9-20. WHEEL INSPECTION9-15

9-21. WHEEL INSTALLATION9-15

9-22.–9-24. [RESERVED.]9-16

SECTION 2. HYDRAULIC SYSTEMS9-17

9-25. GENERAL9-17

9-26. PURPOSES OF HYDRAULIC SYSTEMS9-17

9-27. TYPES OF HYDRAULIC FLUID9-17

9-28. HANDLING HYDRAULIC FLUID9-18

9-29. HYDRAULIC SYSTEM MAINTENANCE PRACTICES9-19

9-30. HYDRAULIC LINES AND FITTINGS9-22

9-31.–9-36. [RESERVED.]9-34

SECTION 3. EMERGENCY EQUIPMENT9-35

9-37. LIFE RAFTS9-35

9-38. LIFE RAFT INSPECTIONS9-35

9-39. SURVIVAL KIT INSPECTION9-37

9-40. SPECIAL INSPECTIONS9-41

9-41. INSPECTION RECORD9-41

9-42. RAFT REPAIRS9-41

9-43. LIFE PRESERVERS9-44

9-44. LIFE PRESERVER INSPECTION9-45

9-45. REPAIR OF LIFE PRESERVERS9-46

9-46. MISCELLANEOUS EQUIPMENT9-46

9-47. OXYGEN SYSTEMS9-47

9-48. INSPECTION9-48

9-49. MAINTENANCE9-49

9-50. FUNCTIONAL TESTING AFTER REPAIR9-51

9-51. REQUIREMENTS FOR REQUALIFICATION OF OXYGEN CYLINDERS9-52

9-52.–9-59. [RESERVED.]9-55

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SECTION 4. CABIN INTERIOR9-56

9-60. GENERAL9-56

9-61. CAR 3 AIRCRAFT INTERIOR9-56

9-62. PART 23 AIRCRAFT INTERIOR9-56

9-63. SOURCE OF INFORMATION9-57

9-64. UPHOLSTERY AND/OR BELTS9-57

9-65.–9-70. [RESERVED.]9-57

CHAPTER 10. WEIGHT AND BALANCE10-1

SECTION 1. TERMINOLOGY10-1

10-1. GENERAL10-1

10-2. TERMINOLOGY10-1

10-3.–10-13. [RESERVED.]10-9

SECTION 2. WEIGHING PROCEDURES10-10

10-14. GENERAL10-10

10-15. PROCEDURES10-10

10-16. REPAIRS AND ALTERATIONS10-11

10-17. ANNUAL OR 100-HOUR INSPECTION10-11

10-18. W&B COMPUTATIONS10-12

10-19. W&B EXTREME CONDITIONS10-13

10-20. LOADING CONDITIONS AND/OR PLACARDS10-16

10-21. EQUIPMENT LIST10-19

10-22. EQUIPMENT CHANGE10-20

10-23. SAMPLE W&B REPORT10-21

10-24. INSTALLATION OF BALLAST10-24

10-25. LOADING SCHEDULE10-25

10-26.–10-34. [RESERVED.]10-25

CHAPTER 11. AIRCRAFT ELECTRICAL SYSTEMS11-1

SECTION 1. INSPECTION AND CARE OF ELECTRICAL SYSTEMS11-1

11-1. GENERAL11-1

11-2. INSPECTION AND OPERATION CHECKS11-1

11-3. FUNCTIONAL CHECK OF STAND-BY OR EMERGENCY EQUIPMENT11-2

11-4. CLEANING AND PRESERVATION11-2

11-5. BATTERY ELECTROLYTE CORROSION11-2

11-6. ADJUSTMENT AND REPAIR11-2

11-7. INSULATION OF ELECTRICAL EQUIPMENT11-3

11-8. BUS BARS11-3

11-9. ASTM INTERNATIONAL11-3

11-10.–11-14. [RESERVED.]11-4