I will provide you with a set of solutions for clean rooms, GMP, customer audits, and on-site implementation, ensuring that the daily maintenance records of the air supply ceiling are 100% genuine, without any falsification, backfilling, or proxy signatures.
How to ensure the authenticity of the air supply ceiling maintenance records
1. From the operational perspective: who does it, who records it, and it is recorded on-site
It must be recorded in real time on-site
Write immediately after measuring the pressure difference, sign immediately after cleaning
Prohibited: Finish first, then fill in uniformly, and return to the office to fill in later
Prohibited proxy filling, proxy signing, proxy copying
Who performs the maintenance, who signs it / fills it in with their account
The signature must be the person themselves, and “help me sign” is not allowed
Prohibited to write in advance, delay filling in, or produce in batches
Any “supplementary records” are regarded as not genuine
If there is a missing record, it can only be written as: Not recorded / Rechecked and noted the reason + signature
2. From the data perspective: The data must be reasonable and not abnormal
The pressure difference trend must be true
Normal: Gradually increase over time
Abnormal: Suddenly unchanged, suddenly decreased, fluctuating → Focus on verification
Key data must be recheckable
Efficient / Medium-efficiency / Initial-efficiency pressure difference
Fan operation status, noise, vibration
Cleanliness inspection particle count
The logical connection between before and after must be closed
Pressure difference exceeds the standard → There must be a replacement record
Replacing the filter → There must be a new pressure difference
Abnormal → Handling → Verification → Recording
It is not allowed to only write normal, not write data, or not record the handling.
3. From the process perspective: The maintenance actions and records must be one-to-one
Real records = True maintenance must be achieved:
Disassemble the flow board → There is a record
Measure the pressure difference → There is a record
Replace the filter → There is a record
Check for leaks → There is a record
Fault → There is a record
Verification → There is a record
There must be no records that appear out of thin air, nor any maintenance that is not recorded.
4. From the management perspective: Three-level review,杜绝falsification
Operator self-check
Check by themselves： Is the time， data， and content true
Supervisor / Team leader review
Weekly random inspection of the site and records to see if they are consistent
Quality / Audit department inspection
Monthly random verification：
Signature
Time pattern
Data trend
Maintenance traces (newness of filters， cleanliness of diffusers)
5. From the modification rules perspective： Do not tamper secretly， do not cover up
If there is a mistake， it can only be crossed out with a single line and rewritten with the correct value
It must： The modifier signs + date
Prohibited： Correction liquid， scraping， covering， re-copying a page
Electronic records： Modification traces， cannot be deleted， traceable
6. From the evidence chain perspective： Traceable， reversible
Real records must be able to answer：
When was it done?
Who did it?
What tools were used (whether in the calibration period)?
What was done?
What was the data?
How was the abnormality handled?
Verification result after handling?
Any mismatch in any link is regarded as not genuine.