AMCAcceptable means of compliance
AMC 25J901(c)(4) Electrical Bonding
Where the APU is not in direct electrical contact with its mounting the engine should be electrically connected to the main earth system by at least two removable primary conductors, one on each side of the APU.
[Amdt 25/1]
AMC — CS-25 · ED Decision 2005/006/R · CS-25 Easy Access Rules · EAR revision 26 Jan 2023