Standard Practices Manual
KING AIR SERIES
COPYRIGHT © 2014
TEXTRON AVIATION INC.
WICHITA, KANSAS, USA 1 NOVEMBER 2014
130-590031-487B4 REVISION B4 15 SEPTEMBER 2023
King Air Chapter 20 Standard Practices - Airframe (Rev B4)
20-00-00 (Rev B0)
STANDARD PRACTICES AIRFRAME - GENERAL
1. General
WARNING: Any maintenance requiring the disconnection and reconnection of flight control cables, plumbing, electrical
connectors or wiring requires identification of each side of the component being disconnected to facilitate
the correct reassembly. At or prior to disassembly, components should be color-coded, tagged or properly
identified in a way that will be obvious, how to correctly reconnect the components.
After reconnection of any component, remove all identification tags. Check all associated systems for the
correct function prior to returning the airplane to service.
This chapter describes the standard maintenance practices used in maintaining the airplane in an airworthy condition. The
maintenance practices in this chapter are applicable during maintenance in several chapters of the aircraft maintenance manual.
Maintenance procedures in a particular chapter supersede the general maintenance practices given in this chapter.
The procedures are broken down into several sub-system/sections. The following is a description of the information contained in
each maintenance practices.
A. 20-00-00 - Inspection Criteria
B. 20-01-00 - Torque Application
This maintenance practices contains the general information for the installation and tightening of threaded fasteners. The topic
includes the following information:
• Torque Requirement for Control Systems.
• Nut and Bolt Tightening Information and Standard Torque Values.
• Installation of Self-locking Nuts.
• Torque Wrenches and Adapters.
C. 20-02-00 - Electrostatic Discharge Sensitivity
This maintenance practices contains the general information for the maintenance of components that are subject to electrostatic
damage. The topic includes the following information:
• General Information.
• Electrostatic Discharge Sensitivity Classification.
• Electrostatic Discharge Sensitive (ESDS) Components and Equipment Removal/Installation.
• Handling of Electrostatic Discharge Sensitive (ESDS) Components and Equipment.
• Controlling Static Charge Build-up.
• Permanent Static Control Workstation.
• Portable Static Control Workstation.
• Humidity and Dust Effects on Electrostatic Discharge Sensitive (ESDS) Components and Equipment.
• Packaging of Electrostatic Discharge Sensitive (ESDS) Components and Equipment.
• Marking of Electrostatic Discharge Sensitive (ESDS) Components and Equipment.
• Storage and Transit of Electrostatic Discharge Sensitive (ESDS) Components and Equipment.
D. 20-03-00 - Electrical Bonding
This maintenance practices contains the general information for the installation of electrical bonding components and the
procedures used to check the resistance of these electrical bonds. The topic includes the following information:
• Electrical Definitions.
• Electrical Bonding Requirements.
• Electrical Bonding Methods.
• Electrical Bonding of Pipes, Tubing and Conduit.
• Electrical Bonding of Exterior Electrical Components.
• Electrical Power Returns.
• Metal Surface Preparation and Electrical Bonding.
• Electrical Bonding Examples.
• Electrical Bonding Check.
E. 20-04-00 - Control Cables and Pulleys
This maintenance practices contains the general information for the maintenance, inspection and storage of control cables and
pulleys. The topic includes the following information:
• Control Cable System Inspection.
• Control Cable Storage.
Copyright © Textron Aviation Inc. Page 1 of 3
Retain printed data for historical reference only. For future maintenance, use only current data. Print Date: Tue Nov 28 17:02:55 CST 2023
King Air Chapter 20 Standard Practices - Airframe (Rev B4)
20-00-00 (Rev B0)
F. 20-05-00 - Bearings
This maintenance practices contains the general information for the removal and installation of bearings.
G. 20-06-00 - Tubing, Hoses and Fittings
This maintenance practices contains the general information for the maintenance of tubing, hoses and fittings. Components are
not identified, but the information is basic and applies to most applications. Any specific information on the system is contained
in the applicable chapter, such as hydraulic tubing for the landing gear is in Chapter 32 (Select: B300, B200, C90B, B300GT,
B200GT, C90GTi). The topic includes the following information:
• General Information.
• Leakage at Threaded Couplings.
• Tubing Manufacturing.
• Tubing and Hose Removal/Installation.
• Fluid Line Fitting Installation.
• Non Positioning Type Fitting Installation.
• Pipe Thread Fitting Installation.
• Tubing Damage Limits.
• Tubing, Hoses and Fittings Inspection.
H. 20-07-00 - Fastener Locking Devices
This maintenance practices contains the general information for the installation of locking devices. The topic includes the
following information:
• Self-locking Nuts.
• Steel Slotted Locknuts (Prevailing Torque Type).
• Lockwire.
• Cotter Pins.
• Safe-T-Cable Requirements.
• Keywashers (Tab and Cup Type).
• Retaining Rings (Spirolex, Etc.)
• Turnbuckle Lock Clips.
I. 20-08-00 - Airplane Finish Care
This maintenance practices contains the general information for the maintenance of airplane finishes, paint removal and paint
application. The topic includes the following information:
• During the Cure Period (One Month).
• Airplane Finish Cleaning.
• Waxing Airplane Finishes.
• Environmental Fallout (Acid Rain).
• Urethane Paint Finish Requirements.
• Spray Paint Guns.
• Placard Replacement.
• Touch Up.
• Functional Surfaces.
• All Metal Parts.
• Decorative or Buffed Parts.
• Similar and Dissimilar Materials.
• Airplane Surface Preparation for Painting.
• Primer Application.
• Application of Urethane Topcoat.
• Topcoat Adhesion Test.
• Application of Color Markings (Strip or Trim)
• Topcoat Repair Procedure.
• Special Procedures.
J. 20-09-00 - Corrosion
This maintenance practices contains the general information for the prevention, control, cleaning, removal and treatment of
corrosion. The topic includes the following information:
Copyright © Textron Aviation Inc. Page 2 of 3
Retain printed data for historical reference only. For future maintenance, use only current data. Print Date: Tue Nov 28 17:02:55 CST 2023
King Air Chapter 20 Standard Practices - Airframe (Rev B4)
20-00-00 (Rev B0)
• Types of Corrosion.
• Corrosion Protection.
• Corrosion Prevention.
• Corrosion Control.
• Corrosion Cleaning.
• Corrosion Inspection.
• Aluminum Corrosion Removal and Protective Treatment.
• Steel Corrosion Removal and Protective Treatment.
• Magnesium and Magnesium Alloy Corrosion Removal and Protective Treatment.
• Fuel Cell Corrosion Protection.
K. 20-10-00 - Sealing/Bonding
This maintenance practices contains the general information for sealant/adhesive preparation and application. The topic
includes the following information:
• General Information.
• Surface Preparation.
• Sealant/Adhesive Preparation.
• Sealant/Adhesive Application.
L. 20-10-01 - COMM, NAV, ADF, Transponder, Etc. Antenna
This maintenance practices contains the general information for antenna bonding.
M. 20-11-00 - Fiberglass Repair
This maintenance practices contains the general information for the repair of minor and major fiberglass damage. It does not
cover air conditioning ducts, heat ducts or interior plastic or fiberglass parts repair.
N. 20-12-00 - Electrical Wiring
This maintenance practices contains the general information for the installation, support and inspection of electrical wiring.
O. 20-12-01 - Electrical Connectors
This maintenance practices contains the general information for the cleaning of and corrosion prevention on electrical
connectors, with typical procedures for contact crimping, contact removal and contact installation.
P. 20-14-00 - Special Tools and Equipment
This maintenance practices provides information on the tools and equipment required to maintain and service the airplane.
Q. 20-15-00 - Recommended Materials
This maintenance practices provides information on the recommended consumable materials required when performing the
procedures detailed in the King Air Series Aircraft Maintenance Manuals.
Copyright © Textron Aviation Inc. Page 3 of 3
Retain printed data for historical reference only. For future maintenance, use only current data. Print Date: Tue Nov 28 17:02:55 CST 2023
