01 March 2005
NAVAIR 01-1A-509-3
TM 1-1500-344-23-3
TO 1-1-689-3
b. Internal Components:
o n the operating environment. Materials and
procedures specified in the appropriate Maintenance
(1) Remove corrosion with Cleaning and
Requirement Cards (MRCs) or Phased Maintenance
Polishing Pad, Non-Abrasive (Volume IV or V,
Inspection Checklist may be used as alternatives.
Chapter 2) or Abrasive Mat, A-A-58054 Type I
(Volume IV or V, Chapter 2), as appropriate.
b. Hinges and latches on equipment covers shall
be preserved in accordance with paragraph 6-2.11.
6-2.10. NONMETALLIC COVERS AND HOUSINGS.
In some cases avionic equipment, support equipment,
Alcohol, Isopropyl
6
or general purpose test equipment use high impact
TT-I-735
plastic or fiberglass covers and housings. These should
be cleaned as follows:
(2) Clean affected area with one part Isopropyl
Alcohol, TT-I-735 (Volume IV or V, Chapter 2), mixed
a. The primary cleaning method shall be cleaning
with one part deionized water. Apply with Cleaning
track CSR2A or CSR3 (as applicable). Refer to
Cloth, CCC-C-46 Class 7 (Volume IV or V, Chapter 2),
Brush, Acid, A-A-289 (Volume IV or V, Chapter 3), or
B r u s h Typewriter, AA-3077 (Volume I V or V,
b. The Secondary Cleaning Method.
(1) Inspect hardware, hinges and points of
(3) Wipe clean and allow to air dry.
metal bonds for signs of galvanic corrosion. Pay
particular attention to dissimilar metals. Remove any
(4) Clean and preserve electrical connectors
corrosion with Cloth Abrasive, ANSI-B74.18 Type I
in accordance with paragraphs 6-3.11. through
Class I (Volume IV or V, Chapter 2), or Abrasive Mat,
6-3.11.4.
A-A-5 8054 Type I (Volume IV or V, Chapter 2).
Compound, Corrosion Preventive
3
Compound, Aircraft Cleaning
4
Water-Displacing
MIL-PRF-85570
MIL-C-81309
(2) Clean cover and housing with a solution of
(5) Coat internal surface by applying a thin film
nine parts fresh water to one part Aircraft Cleaning
of Water Displacing Corrosion Preventive Compound,
Compound, MIL-PRF-85570 Type II (Volume IV or V,
Ultra-Thin Film, MIL-C-81309 Type III (Volume IV or V,
Chapter 2). Apply with Cleaning Cloth, CCC-C-46
Chapter 2), to all electrical connections, terminals,
Class 7 (Volume IV or V, Chapter 2).
and internal surfaces. Avoid the application of
preservatives on relay and circuit breaker contacts.
(3) Rinse with fresh water and wipe dry with
Cleaning Cloth, CCC-C-46 Class 7.
6-2.9. M E T A L L I C EQUIPMENT COVERS AND
HOUSINGS. Avionic equipment cases, covers,
(4) Allow to air dry, if necessary.
housings, and associated hardware are usually
exposed to harsher elements than internal circuit
(5) Hardware associated with test equipment
components. As a result, they require more frequent
housings and covers that is not normally painted
cleaning. Treat any corrosion in accordance with
should be preserved as often as necessary, depending
on the operating environment. Do not preserve water
seal gaskets.
a. Hardware associated with equipment housings
and cases that are not normally painted should be
(6) Equipment hinges and latches shall be
preserved. Preserve as often as necessary, depending
preserved in accordance with paragraph 6-2.11.
6-6
