Your ata ref is wrong for VHF comm panel r and r for classics and NGs. For classic it’s 23-21-31, for NG its 23-12-31.
All individual ATA chapters listed along the top – hover over numbers for drop down
Your ata ref is wrong for VHF comm panel r and r for classics and NGs. For classic it’s 23-21-31, for NG its 23-12-31.