20-30-98
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BOEING PROPRIETARY - Copyright (C) - Unpublished Work - See title page for details.
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747-400 MAINTENANCE MANUAL
AIRPLANE STRUCTURE CLEANING SOLVENTS (SERIES 99) - MAINTENANCE PRACTICES
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1. General_______
A. This procedure contains a list of solvents for final cleaning of composites prior to structural bonding as given in BAC5578. This procedure gives only the list of solvents. It does not tell you which solvent to use or how to use the solvents.
TASK 20-30-99-912-001
2. Final Cleaning of Composites Prior to Structural Bonding (Series 99)____________________________________________________________________
A. General
(1) This selection of solvents uses BAC5578 and D6-53900 as a guide. This list of solvents has the Series Bulk Code of B01019, but this code is only for reference to identify this complete group. In your orders to get the solvents of this list, you must identify each individual solvent by its name, bulk code, or other specification, as shown. Do not use the Series Bulk Code. Refer to the U-File for the applicable vendors.
B. Procedure
S 802-002
(1) When your procedure refers to this subject (Table 201), use a solvent from this list.
~................................................................. | Final Cleaning of Composites Prior to Structural Bonding | | Table 201 | ................................................................... | | Material | Other | | Material Name | Bulk Code | Specifications | ................................................................... |1,1,1-Trichloroethane |B00090 | | |(Non-Metallic core only) | | | ................................................................... |Acetone |B00062 |O-A-51 | ................................................................... |BMS 11-7 (non-Metallic core only) |B00184 | | ................................................................... |Isopropyl Alcohol (IPA) |B00130 | | |(Non-Metallic core only) | | | ................................................................... |MEK: Toluene 1:1 | |ASTM D 740 | | | |TT-T-548 | ................................................................... |Methyl Ethyl Ketone (MEK) |B00148 |ASTM D 780 |
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747-400
MAINTENANCE MANUAL
~................................................................. | Final Cleaning of Composites Prior to Structural Bonding | | Table 201 | ................................................................... | | Material | Other | | Material Name | Bulk Code | Specifications | ................................................................... |Methyl Propyl Ketone (MPK) |B00666 | | |(High purity) | | | ................................................................... |Naphtha (Non-Metallic core only) |B00083 |TT-N-95 | 2...................................…...........….................1
EFFECTIVITYùùùùùùùùùùùùùùùùùùùùùùùùùùùùùù. ú
20-30-99
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BOEING PROPRIETARY - Copyright (C) - Unpublished Work - See title page for details.
A
747-400 MAINTENANCE MANUAL
STATIC GROUNDING - MAINTENANCE PRACTICES
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1. General_______
A. This procedure contains these tasks:
(1)
Static Ground procedure
(2)
Bonding procedure
(3)
Measure Airplane Electrical Resistance to Ground
(a) A positive ground is the same as a static ground.
(4)
Grounding (Static Grounding) is the process of connecting one or more metal objects and ground conductors to ground electrodes (an electrical path to earth).
(5) 中国航空网 www.aero.cn 航空翻译 www.aviation.cn 本文链接地址：747-400 AMM 飞机维护手册 STANDARD PRACTICES - AIRFRAME(134)
