Making Sense of LOLER Defect Categories

Category A: the defect that is a danger today

A Category A entry, however your provider labels it, records the examiner's opinion that the defect is a danger to persons now. The consequences are the sharpest in the regime: the equipment comes out of service immediately, and where the defect involves an existing or imminent risk of serious personal injury, the examiner sends a copy of the report to the relevant enforcing authority as a legal duty they cannot waive.

What earns the top category is failure of something whose job is to prevent harm, present tense. A cracked hook or load chain link, brakes that will not hold the rated load, a limit switch that no longer stops travel, structural cracking in a boom or mast weld, an accessory with cuts or distortion past discard criteria, a missing safety catch on a hook lifting above people. The unifying logic is that continued use relies on luck rather than margin: the component has left its designed envelope, and the next overload, snatch or fatigue cycle is not guaranteed to be survived.

Read an A entry for three things. The component: it tells you what to isolate and what spares to source. The mechanism: cracked, corroded, distorted and worn point at different causes and different fleet checks. And the required work: item 8 obliges the examiner to state the repair, renewal or alteration required, which is your scope of work in the examiner's words, not the fitter's guess.

One discipline separates well run estates on A defects: they treat the verbal notification as the stop, not the paperwork's arrival. The examiner must tell you forthwith, and from that conversation every lift the equipment performs is use of equipment you know to be dangerous.

Category B: the deadline tier, and what the date legally is

The middle category is the one estates mishandle most, because it looks like a to do list and is actually a boundary. Schedule 1 item 8 requires the examiner, for a defect which is not yet but could become a danger, to state the time by which it could become such a danger and the work required. The date on a B entry is therefore not an admin convenience: it is the examiner's written opinion of when the defect stops being tomorrow's problem.

Run B defects on three rules. First, the date is the latest moment, not the target: plan the repair for comfortably inside it, because deadline day repairs leave no room for parts on back order or a fitter off sick. Second, the equipment may keep working up to the date only as reported: if the entry restricts duty, derates the load or excludes a function, those conditions are part of the opinion, and use outside them is use outside the report. Third, when the date will be missed, decide before it arrives: stop the equipment, or get the examiner's revised opinion in writing. Letting a B date lapse in silence quietly converts the entry into a Category A situation with a paper trail proving you were told the date.

Track B defects as their own list with owners and evidence of closure: the invoice, the fitted part, and where the report or good practice asks for it, the re examination of the affected component. At the next thorough examination the examiner will look for exactly this closure, and an estate that closes B entries visibly earns categories argued in its favour when judgements are marginal.

Observations and Category C: the entries that are cheap now and expensive to ignore

The third bucket carries no statutory force, which is exactly why it is so useful. Observations, monitor entries, Category C, advisory items: these record deterioration or conditions that meet neither statutory test, and asking nothing today, they are the examiner giving you the trend for free. Wear at 40 per cent of discard, surface corrosion on a non critical member, a decal fading, drain holes blocking, a duty creeping toward the equipment's limits.

Their value is almost entirely in the series. One observation is a note; the same observation across three reports with a rising measurement is a forecast, and a forecast with a date on it is a budget line you got years in advance. Estates that harvest observations replace components in planned windows at parts cost; estates that discard them meet the same components later as B dates in busy seasons or A defects at worse moments.

Handle them with a light but real process: log them against the asset, glance at the trend when planning maintenance, and tell the examiner what you did about last year's notes. That last habit changes the examination itself, because an examiner who sees observations acted on writes better, earlier, franker observations, and one who sees them ignored eventually stops writing them, which is the quiet death of your early warning system.

One caution: an observation is only cheap while its facts hold. If duty, environment or condition change, the entry does not wait politely for the next examination. The observation that noted mast wear on a single shift truck becomes a different conversation when the truck moves to three shifts in a cold store, and exceptional circumstances exist for exactly that case.

Different providers, different labels: translating the conventions

Move between inspection providers and the labels change under you. One issues Category A, B and C. Another writes immediate, serious and other. A third numbers them 1 and 2, a fourth colours entries red, amber and green, and insurer linked bodies each have a house style. None of this variation is a compliance problem, because none of the labels are statutory; every scheme is a wrapper around the same Schedule 1 wording.

Build yourself a translation habit rather than a preferred vocabulary. Whatever the label, ask which statutory position the entry takes: is this a defect which is a danger now, a defect which could become one by a stated time, or a comment meeting neither test. The first always means out of service and, where the risk of serious personal injury is existing or imminent, an authority copy. The second always means a legal deadline with required work. The third always means information. Once your defect log records that translation alongside the provider's label, reports from any body drop into one consistent system.

Where this bites hardest is mixed estates and provider changes. A fleet with hire equipment inspected by one body, owned plant by another and accessories by a third can hold three labelling schemes at once, and a defect log sorted by provider label will mis sort them. Sort by statutory tier and the log reads true across every report. It also future proofs a provider switch: your history stays comparable because you recorded the law's categories, not the letterhead's.

If a report's key does not say which labels map to which statutory tier, ask the provider to state it in writing once. Good ones answer in a sentence.

Who decides the category, and how to challenge one properly

The category is the competent person's opinion, and LOLER is built so that opinion, not yours, governs. That is deliberate: the examiner is required to be sufficiently independent and impartial precisely so the judgement cannot be leaned on. But opinion does not mean beyond conversation, and there is a proper way to challenge a category you believe is wrong in either direction.

Challenge with engineering, not commercial pressure. If you think an A is harsh, the questions are technical: what mechanism, what measurement, what criteria, and would the examiner walk you through the finding at the machine. Examiners will happily show a crack indication or a wear reading, and seeing it usually ends the argument one way or the other. If the disagreement survives the walkthrough, a second competent person's examination is legitimate; quietly shopping until a friendlier letter arrives is not, because the first report does not evaporate, and a paper trail of category shopping reads terribly beside an incident.

Challenge upward too. A duty holder who believes a B is generous, because they know the duty is harsher than the examiner assumed, should say so: the examination is only as good as the information it was given, and examiners revise judgements when the facts improve. Telling the examiner the hoist actually runs three shifts in a washdown area is not undermining their opinion, it is completing it.

Two things are never negotiable, whatever the conversation: the equipment stays out of service while an A category stands, and the enforcing authority copy, where the statutory trigger is met, is the examiner's duty to send. Any provider offering flexibility on either is offering to break the law with you as the witness.

What each category should trigger in your wider system

A category is only worth what it changes, and a defect log that records letters without consequences is a filing exercise. Map each tier to a fixed set of downstream actions and the categories start running the estate for you.

An A entry triggers the stop, the isolation evidence, the fleet question on sibling components, the spares order against the examiner's required work, and the re examination booking, in that order. It should also trigger one look backwards: what would have caught this earlier, and does the pre use check or maintenance schedule gain a line. A B entry triggers a dated task with an owner, a decision point set before the deadline, any use conditions written into the equipment's instructions, and closure evidence filed with the report. An observation triggers a log line and a trend glance at the next maintenance planning cycle, nothing more, which is precisely its virtue.

Let the categories also drive the conversations beyond the workshop. Hire desks should hear about A and B entries on hired plant the same day in writing. Whoever manages the examination scheme should see any cluster of B entries on one equipment family, because clusters are the scheme asking to be tightened. And the person who buys equipment should see the observation trends, because a fleet whose observations all point at one component or one supplier is telling you what to specify differently next time.

Close the loop annually: one hour with the defect log, counting entries by tier, by equipment family and by cause. That distribution is the health of the estate in three columns, and it is the summary an insurer or inspector is most impressed to be handed unasked.