THE NEW PIPER AIRCRAFT, INC.
PA-32-301FT / 301XTC
MAINTENANCE MANUAL
PAGE 7
Jun 1/03
1J19
20-00-00
7. Electrical
Bonding
Aircraft electrical bonding should be accomplished or verified to establish a maximum allowable
resistance value. See Chart 1 for values.
All electrical, electronic equipment and components shall be installed in such a manner as to provide a
continuous low resistance path from the equipment enclosure to the airplane structure.
Parts shall be bonded directly to the primary structure rather than to other bonded parts.
All parts shall be bonded with as short a lead as possible.
All bonding surfaces shall be cleaned prior to the installation of the bonded joint.
All nuts used in bonding shall be of the self-locking type. (Do Not use fiber-locking type).
All electrical bonding shall be accomplished without affecting the structural integrity of the airframe.
Bond connections shall be secure and free from corrosion.
Self Tapping Screws will not be used for bonding purposes.
CHART 1. MAXIMUM ALLOWABLE RESISTANCE VALUES
Maximum Allowable
Resistance Value
Item to be Electrically Bonded in Ohms
Static Wicks 0.0005
Starter/Alternator to Engine 0.0025
All Electrical/Electronic Equipment
Ground Return to Primary Structure 0.0025
Instruments 0.0100
Battery to Primary Structure 0.0025
Radio Racks to Primary Structure 0.0025
R.F.I. Noise Filters 0.0025
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