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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