3.1 Logkeeping (Key Topic 4)

3.1 Logkeeping (Key Topic 4)

A ship radio log is the legal memory of the station. 47 CFR 80.409 is the current Federal Communications Commission rule for maritime station logs. This OpenExamPrep section helps learners study Element 1 Key Topic 4: who writes service and maintenance entries, who must keep the log in good order, where the log sits during a voyage, how to correct a mistake, and how long to retain ordinary records versus distress records. The 2009 Element 1 question pool already uses the same two-year and three-year retention figures that appear in today's 80.409. Study the current Code of Federal Regulations. Do not revive the older one-year retention story that some mariners still repeat from memory.

Logs may be kept in writing or electronically. They must be orderly, and the required information for that class of station must be readily available. Ship station logs must identify the vessel name, country of registry, and official number. Key letters or abbreviations are allowed when their meaning is explained in the same log — a point Element 1 also tests under Key Topic 5.

Who writes a service or maintenance entry

Required service or maintenance log entries are made by the operator responsible for the station's operation or maintenance. That person is accountable for the work and for the record of the work. The tested rule is not “whoever held the screwdriver,” “any commercial operator who happens to hold a Restricted Radiotelephone Operator Permit,” or “anyone the operator designates.” If a helper assists under direction, the responsible operator still owns the entry.

Public-coast station logs under 80.409(c)(5) show the same idea in more detail. Entries describing work that may affect proper operation must be dated and, for a written log, signed by the operator who supervised or performed the work. If that operator is not a full-time employee at the station, the entry also includes mailing address, class of operator license, serial number, and expiration date. Ship operators should treat a service or maintenance line with the same seriousness: name the work, the date, and the responsible operator.

A practical picture: a GMDSS maintainer comes aboard to replace a VHF DSC control head. The Marine Radio Operator Permit holder who is the operator responsible for the station during that work makes (or supervises and signs) the maintenance entry. The shore technician's invoice is useful, but it does not replace the station log. If the MP holder later tells an inspector “the tech did it, so I did not write anything,” that is the wrong answer for both the exam and an actual boarding.

Who must maintain the log

80.409(a)(4) places maintenance of station logs on both the station licensee and the radio operator in charge of the station. It is not the licensee alone, not the operator alone, and not a pair of “master plus licensee” that leaves the operator out. The master still has ultimate control of the radio service under 47 CFR 80.114, which section 3.3 covers, but Key Topic 4's logkeeping duty is shared by licensee and operator in charge.

That dual duty matters during an inspection or a casualty investigation. If pages are missing, times are invented, or distress traffic was never summarized, the Commission can look to the licensee (often the vessel owner or operating company) and to the operator who was in charge of the station. An MP holder who stands a radio watch is part of that chain whenever that person is the operator in charge.

“Operator in charge” is a duty assignment, not a rank title painted on a cabin door. On a small passenger vessel the MP holder at the radiotelephone may be the operator in charge for that watch. On a GMDSS cargo ship the GMDSS radio operator on watch fills that role. The station licensee remains responsible even when the operator is a contractor or a relief officer.

Form of the log and the ban on erasures

80.409(a) allows a written log or an electronic log. The log must be kept in an orderly manner. Erasures, obliterations, or willful destruction of written logs are prohibited during the retention period. The same ban covers deletions of data and willful destruction of computer files or hardware that hold electronic logs. Replacing a laptop, formatting a drive, or throwing a soaked logbook overboard does not erase the duty to keep the records for the required period.

Station logs must be made available to authorized Commission employees upon request. That is a production duty. It is not an invitation to tidy the book after the boarding team is on the gangway.

How to correct a mistake

Corrections may be made only by the person who originated the entry. The method is: strike out the error, initial the correction, and indicate the date of the correction. Do not erase. Do not black out the original so it cannot be read. Do not wait for the master to approve every typo before the original author may correct it. Do not rewrite a clean line underneath and pretend the error never existed.

For electronic logs, striking out is done with a strike-through formatting effect or a similar software function, and the correction is acknowledged with a dated electronic signature at the location of the strike-through. The original text remains readable. That is the electronic equivalent of a single line through a wrong time group, initials, and a date.

A workable paper example: the operator wrote “1210 UTC tested VHF DSC — fail,” then discovered the test had passed. The operator draws a single line through “fail,” writes “pass,” initials, and dates the change. The struck word stays visible. That record can be reconstructed later if the test ever becomes evidence. A second example: a wrong call sign is struck through, the correct call sign is written beside it, and the original author adds initials and the date of the correction. A third person's initials on someone else's line do not cure the error.

Where the log lives during a voyage

Ship radiotelephone logs required by 80.409(e) and (f) must be kept at the principal radiotelephone operating location while the vessel is being navigated. Element 1 states this as the principal radiotelephone operating position. The log is not locked in a strongbox “for safekeeping” while the ship is underway, not carried in the operator's seabag as personal property, and not automatically handed to the master every time the operator goes off duty.

The operating-position rule exists so a watchstander, a boarding officer, or a surveyor can find the current record at the radio. After the voyage, retention rules still apply ashore and on board as specified. 80.409(b)(2) also requires that entries in their original form remain on board for at least 30 days from the date of entry, and logs required by paragraph (f) must remain on board for two years from the date of the last inspection of the ship radio station. Radiotelegraph logs, where they still exist, stay in the principal radiotelegraph operating room during the voyage.

Public coast station logs follow a different location rule: at the principal control point, or electronically filed at the licensee's primary office, or available to the Commission through secured website access. Do not mix the coast-station filing options with the ship underway rule. A cargo ship on a coastwise voyage does not get to keep its radiotelephone log only at a company office ashore while the ship is being navigated.

How long to keep logs

Current 47 CFR 80.409(b) retains logs as follows. Ordinary logs are kept by the licensee for two years from the date of entry. Logs relating to a distress situation or disaster are kept three years from the date of entry. Those are the numbers Element 1 still tests, and they match the current eCFR text of 80.409 (the section was last amended November 9, 2023). If the Commission has notified the licensee of an investigation, the related logs must be retained until the licensee is specifically authorized in writing to destroy them. Logs relating to any claim or complaint of which the station licensee has notice must be retained until the claim or complaint has been satisfied or barred by a statute of limitations.

Do not shorten distress pages to the ordinary two-year period. Do not invent an “indefinite until the Coast Guard says destroy” rule for ordinary voyage logs. Do not treat a one-year file-cabinet cycle as compliance. If an investigation notice arrives, the written-hold rule overrides the calendar even after two or three years have already run.

Putting the duties together

Think of logkeeping as four linked obligations. The operator responsible writes service and maintenance lines. The licensee and the operator in charge keep the whole log honest. The log stays at the principal radiotelephone operating position while the ship is underway. Mistakes are struck out, initialed, and dated by the original author. Ordinary pages last two years and distress or disaster pages last three years, with longer holds when the FCC or a legal claim is involved.

Those facts are the core of Key Topic 4. Key Topic 5 then fills in what belongs on the page: tests, distress and urgency affecting own ship, non-VHF safety, operator identity, and call signs.