diff --git a/boards/beaglebone/ai-64/ch03.rst b/boards/beaglebone/ai-64/ch03.rst
index 711875b8488b9f24f33849a5dfa07f13b2aacd88..0da386b245340b9accd48db350951c1c29452780 100644
--- a/boards/beaglebone/ai-64/ch03.rst
+++ b/boards/beaglebone/ai-64/ch03.rst
@@ -22,7 +22,7 @@ All the :ref:`BeagleBone AI-64 connections ports` we will use in this chapter ar
    Fig 3.1 BeagleBone AI-64 connections ports
 
 Methods of operation
---------------------------
+----------------------
 
 1.  Tethered to a PC
 2.  Standalone development platform in a PC configurtion using external peripherals
diff --git a/boards/beaglebone/ai-64/ch04.rst b/boards/beaglebone/ai-64/ch04.rst
index 4ea164d9119b417c4a7ad55b26b4aa9d4b166fc0..2d864d18fe3c2cbdd57258a4d2b7eee781ce505b 100644
--- a/boards/beaglebone/ai-64/ch04.rst
+++ b/boards/beaglebone/ai-64/ch04.rst
@@ -170,8 +170,7 @@ This section describes the key components on the board. It provides information
 .. _board-components:
 
 Board components
---------------------------------
-
+---------------------
 
 :ref:`board-components-figure` below shows the locations of the connectors, LEDs, and switches on the PCB layout of the board.
 
diff --git a/boards/beaglebone/ai-64/index.rst b/boards/beaglebone/ai-64/index.rst
index 3e234b2ba64db224aa00df463d0cdd86a139b297..377bbd234ad23a7481f26d8fba109c5734b5ef08 100644
--- a/boards/beaglebone/ai-64/index.rst
+++ b/boards/beaglebone/ai-64/index.rst
@@ -29,7 +29,6 @@ hardware examples and dozens of readily available embedded expansion options ava
    /boards/beaglebone/ai-64/ch02.rst
    /boards/beaglebone/ai-64/ch03.rst
    /boards/beaglebone/ai-64/ch04.rst
-   /boards/beaglebone/ai-64/ch05.rst
    /boards/beaglebone/ai-64/ch07.rst
    /boards/beaglebone/ai-64/ch09.rst
    /boards/beaglebone/ai-64/ch10.rst