Planned Preventive Maintenance (PPM) is not just a regulatory checkbox. Done correctly, it extends the working life of expensive medical imaging equipment by years, prevents the sudden breakdowns that disrupt patient care, and generates the compliance documentation your facility needs for DOH, MOH and DHA accreditation. Yet across GCC healthcare, PPM is routinely treated as a formality — a quick visit, a signed sheet, and nothing more. This article covers the ten practices that separate facilities with excellent equipment reliability from those that are constantly firefighting expensive corrective repairs.
The most common PPM failure is scheduling visits when it is convenient for the engineer, not when it causes least disruption to the facility. A CT scanner that is out of service for PPM on a Monday morning — the highest-volume session of the week — costs the facility significant revenue and patient goodwill. Effective PPM scheduling maps maintenance windows against appointment books, identifies the lowest-utilisation periods, and locks those slots in the calendar six months in advance. RevirzaMed works with each facility's radiology manager to build a PPM calendar that minimises clinical impact.
You cannot maintain what you cannot find. Every biomedical engineering department should maintain a live, accurate inventory of every device under PPM — make, model, serial number, installation date, last service date, next scheduled service, and warranty status. This inventory should be reviewed quarterly. Missing a device from the PPM schedule is a compliance gap that will be identified in a DOH or DHA inspection.
The most reliable PPM protocols are the ones the manufacturer wrote. Every X-ray system, CT scanner and mammography unit ships with a service manual that specifies exactly which checks, adjustments and component replacements are required at each maintenance interval. Experienced biomedical engineers follow these protocols, document the results against the acceptance criteria, and flag deviations for corrective action. Generic PPM checklists that are not calibrated to the specific equipment model miss manufacturer-specified tests.
A PPM visit for X-ray equipment that does not include radiation dose measurement is incomplete. The kVp, mAs linearity, beam quality (HVL), dose output and AEC performance must be checked at every annual PPM visit and after any repair. These measurements confirm that the equipment is delivering the correct radiation dose — critical for patient safety and for FANR compliance.
X-ray rooms are equipped with safety interlocks — door interlocks, warning lights, exposure indicators — that exist to protect staff from accidental radiation exposure. These components are not tested during routine clinical use. PPM is the only opportunity to verify that every interlock actually works. A non-functioning door interlock that allows the X-ray room door to be opened during an exposure is a serious safety failure that a PPM visit should catch.
PPM documentation is what you show DOH, MOH, DHA or FANR inspectors when they ask for evidence of maintenance. The documentation must record the date of visit, the engineer's name and qualification, the equipment details, every test performed, the measured values against acceptance criteria, any corrective actions taken, and the engineer's signature. A PPM visit without complete documentation is, from a regulatory perspective, a PPM visit that did not happen.
Medical imaging equipment contains consumables with defined service lives — X-ray tube filaments, detector calibration tables, cooling system fluids, filter elements, gaskets and seals. Replacing these on schedule prevents the sudden failures that consumable degradation causes. Track replacement dates in your equipment inventory and flag approaching replacements in advance so parts can be procured before the scheduled PPM visit.
The purpose of a diagnostic imaging device is to produce images. PPM for imaging equipment must include image quality assessment using standardised phantoms — test objects that produce predictable image patterns. Changes in spatial resolution, contrast, noise or uniformity indicate equipment degradation long before clinical image quality becomes visibly affected. Catching these changes during PPM allows corrective action before patient images are compromised.
PPM engineers see things about equipment performance that clinical users do not. After every visit, the engineer should brief the lead radiographer or radiology manager on the equipment's current condition, any issues found and resolved, any issues to monitor, and any changes to operating parameters. This handover converts a technical visit into a knowledge transfer that empowers clinical staff to identify early warning signs between PPM visits.
At the end of each year, review your PPM programme against the equipment's actual performance. How many unplanned corrective calls were received? Were any of them preventable with better PPM? Did any equipment fail shortly after a PPM visit — suggesting the visit missed something? This annual review drives continuous improvement in your maintenance programme and builds the case for adjusting PPM frequency on high-utilisation equipment.
FANR and DOH require annual PPM as a minimum for all licensed X-ray equipment. High-utilisation equipment such as CT scanners in busy hospitals should be serviced quarterly or semi-annually. RevirzaMed tailors PPM frequency to your equipment type and workload.
Every RevirzaMed PPM visit includes mechanical inspection, electrical safety testing, radiation output measurement, image quality assessment, safety interlock testing, and a complete signed service report. We follow manufacturer-specified protocols for every equipment model we service.
RevirzaMed Healthcare Solutions — Abu Dhabi's trusted FANR Approval and medical equipment specialists since 2015.