Type of Contamination
CLEANING PROCESSES
CLEANING/PAINTING Aircraft Cleaning after a Sewage Leakage Aircraft Cleaning after a Hydraulic Fluid Leakage Aircraft Cleaning after Leakage from a Fish Shipment Aircraft Cleaning after an Acid or Alkali Leakage Inspection after Mercury Spillage Removal of Corrosion Preventive Compound
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 51-CONTENTS Page 5 Aug 01/05 R CES

 STANDARDS PRACTICES AND STRUCTURES - GENERAL - DESCRIPTION AND OPERATION
________________________________________________________________________
 1. General_______
 This chapter provides the instructions related to the standard practices applicable to the airframe, doors, wings, engine pylons and stabilizers. These practices include:
 -Protective Treatment (Ref. AMM 51-21-00)
 -Corrosion Prevention (Ref. AMM 51-22-00)
 -Coatings Application (Ref. AMM 51-23-00)
 -Sealing - General (Ref. AMM 51-24-00)
 -Repairs (Ref. AMM 51-70-00)
 -
Repair of Minor Damage (Ref. AMM 51-73-00)

 -
Repair of Corroded Areas (Ref. AMM 51-74-00)

 -Paint Repair (Ref. AMM 51-75-00)
 -Sealing Repairs (Ref. AMM 51-76-00)
 -Standard Composite Repairs (Ref. AMM 51-77-00)
 -Cleaning Processes (Ref. AMM 51-78-00)
 2. Description___________
 A. Aircraft Zoning and Dimensions
 (Ref. AMM 06-00-00)

 B. Restricted Areas
 (Ref. AMM 12-11-28) (Ref. AMM 09-20-00)

 C. Access - Door and Panel Identification
 (Ref. AMM 06-40-00)

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 D. Abbreviations
 Abbreviations used in this chapter include:

 AFRP  = Aramidfiber Reinforced Plastic
 CFRP  = Carbonfiber Reinforced Plastic
 CL  = Center Line
 FD  = Fuselage Datum
 Fig  = Figure
 FR  = Frame
 FWD  = Forward
 GFRP  = Glassfiber Reinforced Plastic
 LH  = Left-Hand (side)
 LONGN  = Longeron
 MAX  = Maximum
 MID  = Middle
 MIN  = Minimum
 RH  = Right-Hand (side)
 REF  = Reference
 RPM  = Revolutions Per Minute
 STA  = Station
 STD  = Standard
 STGR  = Stringer
 THS  = Trimmable Horizontal Stabilizer
 VERT  = Vertical

 Aircraft Structure
 Figure 001
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 PROTECTIVE TREATMENT - DESCRIPTION AND OPERATION
________________________________________________
 1. General
_______
 The aircraft structure is given protection against corrosion and fluids.
 Special attention is given to areas of high contamination, high condensation
 and areas where different materials touch.
 On metal structure, the protective treatment protects against corrosion and
 damage by corrosive fluids and prevents erosion.
 Composite structures have a protective treatment to protect against the
 effects of lightning, ultra violet rays and erosion.

 The material, the function and the location of a component have an effect
 upon the type of protective treatment applied to a component.

 When a repair or cleaning procedure removes the original surface protection
 the protective treatment must be renewed.

 2. Description
___________
 (Ref. Fig. 001, 002)

R **ON A/C 001-049, 101-149, 151-199, 201-299, 301-399, 401-499,
 (Ref. Fig. 003)
 A. Unpainted Areas The protective treatment build-up is not the same for all aircraft structures. The areas that are made of, or covered by, corrosion resistant material, or areas where the performance of the component would change, are not painted. These areas include:
 -
the leading edges of the vertical stabilizer (Ref. 55-32-00),

 -
the leading edges of the slats,

 -
the engine inlet cowl,

 -
the external surfaces of the engine pylon that are made of corrosion resistant materials,

 -passenger and cargo-compartment door scuff-plates,
 -APU exhaust,
 -angle of attack sensors and static ports.

　
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