04/09/21
Message Overview:
Message Description:
Proximity Sensor Electronic Unit (PSEU) detects an unreasonable (related to rigging) condition to the Proximity Sensor PX49, Right-hand Over-Wing Emergency Door Locked; target condition (NEAR or FAR) is opposite of what it should be. Sensor is healthy but requires proper rigging.
Possible Causes:
- Proximity Sensor Electronic Unit (PSEU) (A9)
- Right Overwing Emergency Door Closed Proximity Sensor (PX49)
- Associated Wiring
Troubleshooting Tips:
Advisory Wire/Service Bulletin: None
Forum Articles/Infoservice/Newsletter: None
Quick Links:
| Removal of the Proximity-Sensor Electronic Unit (PSEU) | AMM 32-61-09-000-801 |
| Installation of the Proximity-Sensor Electronic Unit (PSEU) | AMM 32-61-09-400-801 |
| Functional Test of the Proximity-Sensor Electronic Unit (PSEU) | AMM 32-61-09-720-801 |
| Operational Test of the Emergency Exit Proximity-Sensor | AMM 52-71-00-710-802 |
| Built-In Test of the Door Proximity-Sensors | AMM 52-71-00-740-801 |
| Removal of the Over-Wing Emergency-Exit Proximity-Sensor | AMM 52-71-21-000-801 |
| Installation of the Over-Wing Emergency-Exit Proximity-Sensor | AMM 52-71-21-400-801 |
| Wiring - Maintenance Practices - ALL | SPM 20-12-00-02 |
| Wire Repair - Maintenance Practices - ALL | SPM 20-12-10-02 |
Troubleshooting Recommendations:
- Do the mechanical adjustment (rigging) for PX49 (Installation of the Over-Wing Emergency-Exit Proximity Sensor).
- Do the Built-In-Test of the Door Proximity Sensors.
- If test is good, do close out.
- If fault remains, continue with next step.
- Replace PX49.
- If system checks are good, do close out.
- If fault remains, continue with next step.
- Do close out.
