Emergency position-indicating radio beacon
What is being checked
The inspector is checking whether the EPIRB is correctly registered, securely mounted for float-free release and ready for manual or automatic distress alerting, with officers able to configure, cross-check, test and respond to failure of the actual equipment fitted.
Ready onboard
0/6 completePractice questions
Answer aloud, then open the preparation point.
1What safety function does emergency position-indicating radio beacon provide?
The epirb is correctly registered, securely mounted for float-free release and ready for manual or automatic distress alerting.
2How is the complete function tested?
Use the self-test within manufacturer limits, inspect bracket, lanyard, antenna, seals and HRU and verify shore-maintenance or annual-test records.
3What is its principal limitation?
Incorrect registration delays identification; poor mounting, painting, obstruction or attaching the lanyard to the ship can prevent float-free release.
4What is your response if it fails?
Use another GMDSS distress method, report the defect, secure an approved replacement and correct registration or mounting before relying on the beacon.
5Show the latest test and operational evidence.
Link the dated record to the actual unit, test method, result, defect response and restoration; a panel lamp test alone is not sufficient where the full signal path can be tested.
Where an observation may arise
The responsible officer cannot explain safe use, limitations or failure response.
Testing does not prove the required operational function or remote indication.
Beacon identity or ownership details are wrong or outdated.
The hydrostatic release is expired, incorrectly installed or obstructed.
The lanyard is tied to ship structure or otherwise prevents proper use.
Master's practical note
Inspect the physical release path. An in-date beacon can still fail to float free because of paint, a retaining strap, overhead obstruction or a wrongly secured lanyard.
Equipment boundary and references
Equipment boundary: Self-test and transmission-test restrictions are manufacturer and administration specific. Never activate a live distress alert merely for inspection.
References
- OCIMF SIRE 2.0 Question Library Part 1, Version 1.0, Question 4.4.1
- SOLAS Chapter IV
- IMO Resolution MSC.471(101)
- IMO Resolution A.810(19)
- COSPAS-SARSAT guidance
Last reviewed: 2026-09-11