Tank alarms, gas detection and restart controls
Applicability: Section 7D applies where equipment, machinery or a system on board uses ammonia fuel. Apply the vessel-specific conditions in this entry.
What is being checked
Independent alarms and shutdown functions are tested.
Ready on board
0 / 7 checkedCheck the vessel’s actual procedures, equipment and records against these points from RISQ 3.2.
Practice questions
Preparation prompts derived from this entry, not an official inspector interview script.
1May a failed detector simply be ignored in the stated voting arrangement?
No. The source treats it as an active detection.
2Are the tank high-level independence rules identical to methanol 7C.6?
No. This ammonia entry explicitly requires independence from other level indicators, as well as the additional independent shutdown sensor.
Where a finding may arise
Missing evidence or defects inconsistent with the checks above may prevent a satisfactory answer. These are preparation concerns derived from the question, not explicit additional finding criteria or reported past observations.
Past observations for practice
Anonymised reports, manually reviewed before publication. These are reported experiences, not additional inspection requirements.
No reviewed observations have been added for this entry.
Share an observation for private review
Remove vessel, company and inspector names, report numbers, exact dates and confidential information. Do not paste a complete inspection report.
Source clarification
The excerpt refers to table 1 of its cited guidance without reproducing a complete cause-and-effect table here. Do not infer every gas alarm must use the same voting or shutdown setting; check the approved system.
References and source status
RightShip Inspection Ship Questionnaire, November 2025, version 3.2. Section 7D, page 109, reference 7.20.
The explanation, checklist and practice answer derive from the supplied questionnaire. Reported observations are separately contributed and manually reviewed; they are not official RISQ guidance.
Independent DeepDraft preparation guide, based on the supplied RISQ 3.2 questionnaire. Not an official RightShip product or inspection report.