01 March 2005
Coating, Chemical Conversion
Compound, Corrosion Preventive
c. Where corrosion products were abrasively
h. Cover fastener heads with Corrosion Preventive
removed, the affected surfaces shall be treated with
Compound, MIL-PRF-16173 Grade 4 (Volume IV or V,
Chemical Conversion Coating, MIL-DTL-81706 Class
3 with the Alodine Touch 'n Prep Pen (Volume IV or V,
Chapter 2) as preferred treatment method. If the Touch
i. Allow sealant to cure for 30 minutes, then remove
'n Prep Pen is used, only one coat should be applied
excess sealant from aircraft skin using a nonmetallic
and the treated surface does not require rinsing or
wiping off and can be air or forced air dried. Allow
coated surfaces to dry before proceeding.
6-3.17.3. S t a t i c Discharger Bonding/Grounding
Connection Electrical Resistance Test. The electrical
d. Install static discharger mount base and new
resistance test is performed after the static discharger
static discharger wick in accordance with the aircraft
is assembled. The test shall take place prior to applying
specific technical manual.
outer edge sealant, if applicable.
e. Check electrical resistance between static
discharger mounting base and aircraft structure in
It is essential that the probe be placed against
bare metal when taking the reading. The
rotating probe tips will create bare metal contact
when pressed into the surface.
6-22.214.171.124. Using a milliohm meter such as the R1-LE
milliohm meter, conduct an electrical resistance
bonding test in accordance with the aircraft specific
f. Clean the outside edge of the static wick
technical manual to measure resistance between the
attachment area and fastener heads with a Cleaning
static discharger mount and the aircraft structure.
moistened with Isopropyl Alcohol, TT-I-735 (Volume IV
6-126.96.36.199. The resistance between the static wick
base and the aircraft structure shall comply with the
requirements of the aircraft specific manual.
6-4.1. GENERAL. Electrical bonding provides a low
resistance electrical path between two or more
g. Using Spatula, A-A-277 (Volume IV or V,
conductive units or components. Grounding is a form
of bonding that utilizes the primary structure as a
with Nozzle (Volume IV or V, Chapter 3) and Retainer
portion (return path) of the electrical circuit. Bonding
Sleeve (Volume IV or V, Chapter 3) if using 2 1/2 oz.
may serve one or all of several functions:
sealant cartridge, form a fillet of Sealing Compound,
a. Provide a common ground for the proper electrical
the outside edge of the static wick discharger base to
functioning of the units involved.
form a water tight seal.
b. Provide a path to minimize lightning strike