- Equipment
- Antenna
- Ice
- Water in the coax
- Lead Lines
- Power
- Battery
- Fuse
- Sufficient Power
- Microphone
- Microphone cord
- Repeater Failure
- People
- Knowledge
- Assigned Task Failure
- Redundancy in assignments
- Working to long and hard
- Be realistic about our abilities
- Properly estimate time needed to accomplish something
- Remember conditions have changed