| 2023-01-16 | Class II | Process control | This is a potential problem with the locking mechanism that is used to secure the PET gantry in either its scanning or service position. | 1 unit | |
| 2023-01-16 | Class II | Process control | This is a potential problem with the locking mechanism that is used to secure the PET gantry in either its scanning or service position. | 4 units | |
| 2023-01-16 | Class II | Process control | This is a potential problem with the locking mechanism that is used to secure the PET gantry in either its scanning or service position. | 6 units | |
| 2022-03-11 | Class II | Nonconforming Material/Component | There is a quality issue with the three bolts that hold the CT balancing weights, which could create a safety issue. | 7 devices | 2023-04-14 |
| 2020-08-14 | Class II | Device Design | This letter is to inform you of the possibility that your Symbia S or Symbia T system(s) may have unintended slow motion of the detectors in specific situations which could pose a potential risk. | 412 units | 2023-05-01 |
| 2018-11-30 | Class II | Device Design | Improper design or specifications. | 171 | 2020-09-02 |
| 2018-10-05 | Class II | Other | The Evo Excel External-ECG Power-Connection current limit is mis-labeled as 1.0A. It should be labeled 0.55A., | 264 units | 2021-02-11 |
| 2018-09-28 | Class II | Process control | The terminals on the plug may become loose and overheat. | 78 units | 2021-02-11 |
| 2018-09-28 | Class II | Process control | The terminals on the plug may become loose and overheat. | 890 units | 2021-02-11 |
| 2018-02-21 | Class II | Software design (manufacturing process) | Possibility that the Biograph Horizon systems performing CT retrospective cardiac gating or PET cardiac gating examinations may experience a waveform sampling issue caused by a firmware change within the Universal Physiological Measurement | 14 units | 2018-10-12 |
| 2017-11-07 | Class II | Software design | The Broad Quantification option of the Symbia product software version VB20A may not allow modification of two data input values. The failure occurs when the system with the Broad Quantification option is calibrated with phantoms that do n | 2 units | 2019-04-29 |
| 2017-11-07 | Class II | Software design | The Broad Quantification option of the Symbia product software version VB20A may not allow modification of two data input values. The failure occurs when the system with the Broad Quantification option is calibrated with phantoms that do n | 2 units | 2019-04-29 |
| 2017-09-18 | Class II | Equipment maintenance | The torque wrench used to tighten system bolts during installation was found to be out of tolerance | 16 devices | 2017-12-11 |
| 2017-02-20 | Class II | Labeling Change Control | The mobile-specific instructions was not shipped to a limited population of Biograph Mobile systems. | 4 units | 2017-09-17 |
| 2017-02-20 | Class II | Labeling Change Control | The mobile-specific instructions was not shipped to a limited population of Biograph Mobile systems. | 6 units | 2017-09-17 |
| 2017-02-20 | Class II | Labeling Change Control | The mobile-specific instructions was not shipped to a limited population of Biograph Mobile systems. | 9 units | 2017-09-17 |
| 2017-02-20 | Class II | Labeling Change Control | The mobile-specific instructions was not shipped to a limited population of Biograph Mobile systems. | 18 units | 2017-09-17 |
| 2016-12-13 | Class II | Device Design | Siemens Medical Solutions, Molecular Imaging has become aware, through our supplier that some laser cover windows may fall off. | 1 unit | 2017-05-08 |
| 2016-12-13 | Class II | Device Design | Siemens Medical Solutions, Molecular Imaging has become aware, through our supplier that some laser cover windows may fall off. | 34 units | 2017-05-08 |
| 2016-12-13 | Class II | Device Design | Siemens Medical Solutions, Molecular Imaging has become aware, through our supplier that some laser cover windows may fall off. | 41 units | 2017-05-08 |
| 2016-12-13 | Class II | Device Design | Siemens Medical Solutions, Molecular Imaging has become aware, through our supplier that some laser cover windows may fall off. | 102 units | 2017-05-08 |
| 2016-12-13 | Class II | Device Design | Siemens Medical Solutions, Molecular Imaging has become aware, through our supplier that some laser cover windows may fall off. | 51 units | 2017-05-08 |
| 2016-12-13 | Class II | Device Design | Siemens Medical Solutions, Molecular Imaging has become aware, through our supplier that some laser cover windows may fall off. | 71 units | 2017-05-08 |
| 2016-12-13 | Class II | Device Design | Siemens Medical Solutions, Molecular Imaging has become aware, through our supplier that some laser cover windows may fall off. | 1 unit | 2017-05-08 |
| 2016-12-13 | Class II | Device Design | Siemens Medical Solutions, Molecular Imaging has become aware, through our supplier that some laser cover windows may fall off. | 1 unit | 2017-05-08 |
| 2016-12-13 | Class II | Device Design | Siemens Medical Solutions, Molecular Imaging has become aware, through our supplier that some laser cover windows may fall off. | 88 units | 2017-05-08 |
| 2016-12-13 | Class II | Device Design | Siemens Medical Solutions, Molecular Imaging has become aware, through our supplier that some laser cover windows may fall off. | 1 unit | 2017-05-08 |
| 2016-12-13 | Class II | Device Design | Siemens Medical Solutions, Molecular Imaging has become aware, through our supplier that some laser cover windows may fall off. | 18 units | 2017-05-08 |
| 2016-04-25 | Class II | Process design | The bracket that is used to lift the cover has bolts that were not welded in potentially causing the cover to fall down during service. | 1 unit | 2017-02-01 |
| 2016-04-25 | Class II | Process design | The bracket that is used to lift the cover has bolts that were not welded in potentially causing the cover to fall down during service. | 2 units | 2017-02-01 |
| 2016-04-25 | Class II | Process design | The bracket that is used to lift the cover has bolts that were not welded in potentially causing the cover to fall down during service. | 1 unit | 2017-02-01 |
| 2016-04-25 | Class II | Process design | The bracket that is used to lift the cover has bolts that were not welded in potentially causing the cover to fall down during service. | 1 unit | 2017-02-01 |
| 2016-04-22 | Class II | Nonconforming Material/Component | Siemens Medical Solutions, Molecular Imaging has become aware of a potential for unexpected SUV values if a non-Siemens phantom is used for calibration. | 4 units | 2017-05-08 |
| 2016-04-22 | Class II | Nonconforming Material/Component | Siemens Medical Solutions, Molecular Imaging has become aware of a potential for unexpected SUV values if a non-Siemens phantom is used for calibration. | 3 units | 2017-05-08 |
| 2016-04-22 | Class II | Nonconforming Material/Component | Siemens Medical Solutions, Molecular Imaging has become aware of a potential for unexpected SUV values if a non-Siemens phantom is used for calibration. | 1 unit | 2017-05-08 |
| 2016-04-22 | Class II | Nonconforming Material/Component | Siemens Medical Solutions, Molecular Imaging has become aware of a potential for unexpected SUV values if a non-Siemens phantom is used for calibration. | 2 units | 2017-05-08 |
| 2016-04-22 | Class II | Nonconforming Material/Component | Siemens Medical Solutions, Molecular Imaging has become aware of a potential for unexpected SUV values if a non-Siemens phantom is used for calibration. | 83 units | 2017-05-08 |
| 2016-04-22 | Class II | Nonconforming Material/Component | Siemens Medical Solutions, Molecular Imaging has become aware of a potential for unexpected SUV values if a non-Siemens phantom is used for calibration. | 102 units | 2017-05-08 |
| 2016-04-22 | Class II | Nonconforming Material/Component | Siemens Medical Solutions, Molecular Imaging has become aware of a potential for unexpected SUV values if a non-Siemens phantom is used for calibration. | 143 units | 2017-05-08 |