The biomechanical maintenance program was a computer program in Soong-type androids which performed a large set of diagnostics, analyses and calibrations.
Lieutenant Commander Data regularly executed his maintenance program. He had access to this program in his quarters and used the USS Enterprise-D computer to perform the selected operation. This program included the following components:
- Cognitive Interface Timing Test
- Autonomic Regulatory and Diagnostic Scan
- Diagnostic Analysis
- Servo Motor Coordination
- Precision Motor Coordination
- Positronic Network Analysis
- Balance Sensor Diagnostic Sequence
- Locomotive Servomotor Dynamic Test
- Optical and EM Sensor Calibration
- Auditory Sensor Calibration
- Chemical Process Analysis
- Fluidic Sensor Diagnostic
In 2367, Data mentioned this program in a letter to Commander Bruce Maddox. Data said he rarely needed the professional medical services of Doctor Beverly Crusher as this program was self-sufficient for his needs. (TNG: "Data's Day")