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Practical aviation fuel training — instruction, guided practice, practical assessment, competence decisions and certificates, with every module traceable to its source procedure.
Perform the primary field test for product appearance and confirm the free-water status of into-plane samples.
The source wording is unclear, misspelled or uses an unverified unit. The original is kept as it stands — an authorised person confirms the final wording before the module can be published.
OPEN VALVE FULLY TO SAMPLE MIN ILT INTO CLEAN GLASS JAR
Procedure 4, line 23
Open the valve fully to sample a minimum of 1 litre into a clean glass jar.
Reason The source states the sample size as “MIN ILT” — the unit is unreadable. Confirm the minimum sample volume.
RECORD AMOUNT FLUSHED, RESULTS OF TEST 'E COLOUR, ANY SOLIDS OR WATER, WHAT AND HOW MUCH
Procedure 4, line 35
Record the amount flushed and the results of the test: colour, any solids or water, what and how much.
Reason The source line is OCR-damaged (“RESULTS OF TEST 'E COLOUR”) — confirm exactly what must be recorded.
APPEARANCE TEST ONLYBEQUIRED FROM:
Procedure 4, line 56
Appearance test only required from:
Reason The source heading is damaged (“APPEARANCE TEST ONLYBEQUIRED FROM:”) — confirm the wording before publishing.
Position, PPE and equipment, manual handling, risk assessment and safety awareness
Why The preparation decides how safely everything that follows can be done.
Expected Correct position, correct PPE, equipment present, hazards identified.
If it fails Correct the position or fetch the missing equipment before continuing.
Source: procedure 4, line 13 — “VEHICLE POSITION”
The appearance check is the primary field test that confirms the product meets the aviation appearance specification.
Source: procedure 4, line 18 — “PURPOSE: PRIMARY FIELD TEST TO CONFIRM AVIATION APPEARANCE SPECIFICATION”
Select the equipment sampled
Remove the cap, clean the sampling point, place the steel bucket and bond it to the vehicle
Why An unbonded container can build a static charge as the product flows.
Expected Sampling point clean, bucket bonded before any flow.
Source: procedure 4, line 19 — “REMOVE CAP AND CLEAN SAMPLING POINT, PLACE STEEL BUCKET, BOND TO VEHICLE”
Open the valve fully and completely flush the drain line
Why The drain line holds product that is not representative of the sump.
Source: procedure 4, line 20 — “OPEN VALVE FULLY AND COMPLETELY FLUSH DRAIN LINE”
Leave ullage in the containers to prevent spillage and keep the lid on the bucket
Source: procedure 4, line 21 — “LEAVE ULLAGE IN CONTAINERS TO PREVENT SPILLAGE, LID ON BUCKET”
Return the flushed product to the product recovery tank via the dump tank
Source: procedure 4, line 22 — “RETURN TO PRT VIA DUMP TANK”
Open the valve fully and draw the sample into a clean glass jar
Source: procedure 4, line 23 — “OPEN VALVE FULLY TO SAMPLE MIN ILT INTO CLEAN GLASS JAR”
Sample volume drawn
Limit min 1 litres
Source: procedure 4, line 23 — “OPEN VALVE FULLY TO SAMPLE MIN ILT INTO CLEAN GLASS JAR”
Secure the lid, swirl to create a vortex and allow one minute to settle
Why The vortex brings water and particulates to the centre where they can be seen.
Source: procedure 4, line 24 — “SECURE LID TO JAR, SWIRL TO CREATE VORTEX, ALLOW 1 MIN TO SETTLE”
Hold the jar up to the light to observe, identify and record
Source: procedure 4, line 25 — “HOLD UP TO LIGHT TO OBSERVE, IDENTIFY AND RECORD”
Appearance, colour, water or moisture, particulates and volume recorded
Expected Clear and bright, colour water-white to straw, no visible water or particulates.
If it fails Repeat with a fresh sample until a clear and bright sample is observed.
Source: procedure 4, line 26 — “APPEARANCE, COLOUR, WATER/MOISTURE, PARTICULATES, VOLUME”
Sampling repeated as necessary until a clear and bright sample is observed
Source: procedure 4, line 27 — “REPEAT IF NECESSARY UNTIL C+B SAMPLE OBSERVED”
Unusual amount of contaminant investigated
If it fails Stop and inform the supervisor before the product is used.
Source: procedure 4, line 28 — “INVESTIGATE IF UNUSUAL AMOUNT OF CONTAMINANT PRESENT”
Jet fuel colour ranges from water white to straw.
Source: procedure 4, line 29 — “JET FUEL COLOUR FROM WATER WHITE TO STRAW”
Water appears as droplets, a cloud or a haze.
Source: procedure 4, line 30 — “WATER APPEARS AS DROPLETS, CLOUD OR HAZE”
Particles can be rust, scale, sand or dirt.
Source: procedure 4, line 31 — “PARTICLES CAN BE RUST, SCALE, SAND, DIRT”
Clear is the absence of any sediment or emulsion.
Source: procedure 4, line 32 — “CLEAR IS ABSENCE OF ANY SEDIMENT, EMULSION”
Bright is a sparkling appearance, with no cloudiness or haze.
Source: procedure 4, line 33 — “BRIGHT IS SPARKLING APPEARANCE , NO CLOUDINESS OR HAZE”
Fully close the valves, replace the drain line cap and dispose of the sample
Source: procedure 4, line 34 — “FULLY CLOSE VALVES, REPLACE DRAIN LINE CAP AND DISPOSE OF SAMPLE”
Amount flushed and the test result recorded — colour, and any solids or water, what and how much
Source: procedure 4, line 35 — “RECORD AMOUNT FLUSHED, RESULTS OF TEST 'E COLOUR, ANY SOLIDS OR WATER, WHAT AND HOW MUCH”
A visual check is an appearance check plus a chemical water check. It confirms the free water status of into-plane samples and detects dispersed free water below what the eye can see.
Source: procedure 4, line 37 — “AN APPEARANCE CHECK PLUS CHEMICAL WATER CHECK”
Date on the sealed tube checked
Why An out-of-date capsule cannot be relied on.
If it fails Do not use the capsule — take one in date.
Source: procedure 4, line 40 — “CHECK DATE OF SEALED TUBE”
Remove the capsule and check the paper is yellow — do not touch it
Source: procedure 4, line 41 — “REMOVE CAPSULE, CHECK PAPER IS YELLOW, DO NOT TOUCH”
Fit the capsule to the syringe with the plunger depressed
Source: procedure 4, line 42 — “FIT TO SYRINGE WHILST PLUNGER DEPRESSED/CLOSED”
Immerse the capsule and half the syringe into a fresh sample
Source: procedure 4, line 43 — “IMMERSE CAPSULE AND HALF OF SYRINGE INTO FRESH SAMPLE”
If the sample is not swirling, swirl it with the syringe
Source: procedure 4, line 44 — “IF SAMPLE NOT SWIRLING, SWIRL WITH SYRINGE”
Volume drawn into the syringe
Why 5 ml is both the minimum and the maximum — the result is only valid at that volume.
Limit min 5 · max 5 ml
Source: procedure 4, line 45 — “DEPRESS AND HOLD SYRINGE PLUNGER UNTIL 5ML DRAWN (MIN & MAX)”
Withdraw and examine the capsule
Source: procedure 4, line 46 — “WITHDRAW AND EXAMINE CAPSULE”
Water detection result read and recorded
Why No colour change is a pass; slight green speckles up to 15 ppm is a pass; a distinct change to green is above 30 ppm and fails.
Expected No colour change, or slight speckles up to 15 ppm.
If it fails Repeat with a fresh sample. If the repeat also fails, inform the supervisor and do not deliver the product.
Source: procedure 4, line 47 — “NO COLOUR CHANGE IS A PASS”
A failed water check repeated with a fresh sample
Source: procedure 4, line 50 — “IF WATER CHECK FAILS REPEAT TEST WITH FRESH SAMPLE”
Supervisor informed if the repeat test also fails
Source: procedure 4, line 51 — “IF REPEAT TEST FAILS IN FORM SUPERVISOR”
Capsules disposed of environmentally and used only once
Source: procedure 4, line 52 — “DISPOSE CAPSULES ENVIRONMENTALLY, ONLY USE ONCE”
To empty the syringe, slide the outer body down
Source: procedure 4, line 53 — “TO EMPTY SYRINGE SLIDE OUTER BODY DOWN”
Results of all tests recorded on the vehicle logsheet or maintenance logbook
Source: procedure 4, line 54 — “RECORD RESULTS OF ALL TESTS ON VEHICLE LOGSHEET AND/OR MAINTENANCE LOGBOOK”
An appearance test alone is required from: airport fixed receipt filter vessel sumps and strainers; airport storage tank sumps in receipt or settling.
Source: procedure 4, line 56 — “APPEARANCE TEST ONLYBEQUIRED FROM:”
A visual test is required from: airport storage tank sumps before release and daily in service; airport fixed loading filter and vehicle filter sumps daily; all fuelling vehicle tank sump samples daily; and any fuelling vehicle samples taken while fuelling or defuelling.
Source: procedure 4, line 59 — “VISUAL TEST REQUIRED FROM:”
What does bright mean in a clear and bright sample?
A distinct colour change to green on the capsule means…
The water check fails and the repeat on a fresh sample fails too. What do you do?
Comments and praise
Trainer observation
Trainee acknowledgement
Assessor competence decision