Approved Statutory Maritime Electronics & Survey Division
Mandatory bridge navigation and power system checks to complete prior to Seanav certified APT engineer boarding.
| Status | Verification Item / Statutory Requirement | Acceptable Condition & Action Required |
|---|---|---|
| ✓ | 1. VDR Main Unit Power Supply & Charger | Main AC supply active; UPS charging voltage verified normal; battery disconnect breaker closed with zero alarms. |
| ✓ | 2. Backup Reserve Battery Condition | Check battery installation date (replacement required every 36 months); verify terminal tightness and absence of swelling. |
| ✓ | 3. Fixed & Float-Free Capsule Integrity | Capsule casing free of mechanical damage; reflective tape intact; release mechanism clear of paint and obstructions. |
| ✓ | 4. Acoustic Underwater Beacon (PT9 Ninety) | Verify beacon battery expiry date (standard: 3 years); test 37.5 kHz acoustic burst using beacon tester or visual test probe. |
| ✓ | 5. Bridge Microphones & Wing Units | Conduct audible speech test at all bridge and wing microphone positions; verify LED test indicators illuminated. |
| ✓ | 6. VHF Radio Transmit / Receive Audio Feeds | Confirm VHF 1 & VHF 2 dedicated audio tap cables connected; initiate test call to port radio and verify audio record. |
| ✓ | 7. Primary Navigation Sensor NMEA Feeds | Verify valid NMEA 0183 / IEC 61162 sentences received from Gyro Compass, GPS GNSS, Speed Log, Echo Sounder, and Class A AIS. |
| ✓ | 8. Radar & ECDIS Image Capture Feeds | Confirm DVI/RGB radar image capture interface card active; verify target blips and range scales refresh at standard interval (15s). |
| ✓ | 9. Engine Telegraph, Rudder & Anemometer Data | Check rudder angle indicator, propulsion rpm, pitch, and bridge anemometer telemetry feeds into VDR data concentrator. |
| ✓ | 10. Previous APT Report & Manufacturer Certificate | Have prior year APT Certificate, Maintenance Log, and OEM Software Dongle available in the ship's office for Surveyor review. |