E3D-APAM-RPT-002 · Board Condition Report · Board 41 of 67
DB-F15E
F-series — Foxtrot-pier field lighting
RED — Major defect
Status: Complete · Condition Index 43.8/100
1. Verdict & suitability
Assessment summary
Can house the new LED luminaires & controlsYES — universal
BasisLED load ≪ legacy HID; enclosure space & isolation adequate
Overall condition ratingRED — Major defect
P2
3
P3
1
P4
1
Photos
21
0Condition Index 43.8100
Rated RED. The board can house the new LED works. Field condition records significant structural / enclosure damage, evidence of a previous internal fire, non-compliant working-space clearance and corrosion to fixings and bars.
2. Location
GPS (lat, long)
-37.671811, 144.846510
Zone / apron
Foxtrot pier, apron field lighting
Upstream source (parent DB / sub)
To be confirmed against airfield reticulation drawings
Inspected
21–22 June 2026
3. Supply & electrical
As-built supply and cabling recorded on site. Visual / physical condition audit only — no electrical testing performed.
Incoming supply & earthing
Supplied from
Sub 40
Upstream CB way(s)
—
Phases
3-phase
Line voltage
400 V (L-L)
Phase-earth voltage
230 V (L-N)
Earthing system
Reticulated
Upstream protection
Isolator only (no OCPD confirmed at board)
Supply cable schedule
Active conductor size
25 mm²
Configuration
1x4C
Conductor arrangement
circular
Parallel sets
1
Conductor material
Copper
Insulation / type
PVC
Armour
Unarmoured
Installation method
Underground Enclosure
Conduit
100 mm
Loaded circuits in conduit
1
Estimated depth
0.5 m
Earth arrangement
Separate — 25 mm²
Approx. length
Not recorded
Field note (open supply query): Same junction box. 50mm mains? Loop or dedicated feed. All foxtrot pier. — resolve looped-vs-dedicated feed arrangement on the F-series 50 mm mains before finalising the outgoing design.
4. Condition assessment
Scored per the Condition Scoring & Rating Model (six standards-referenced dimensions, 0–4 on the P-scale). Rating is gated — a single safety/structural P2 breach sets RED regardless of the averaged Index.
Dimension
Score
Grade
Observation
Electrical safety & compliance
0
None observed
None observed
Structural & enclosure integrity
3
Major / safety (P2)
Enclosure & chassis mechanical integrity
Corrosion & protective coating
2
Moderate (P3)
Corrosion of fixings, bars and coatings; general fouling
Ingress protection
0
None observed
None observed
Access & working space
3
Major / safety (P2)
Door opening arc and working-space clearance
Thermal / fire & component
3
Major / safety (P2)
Prior fire / thermal event and component condition
Rationale. The gated rating is RED, driven by prior internal-fire evidence, structural / enclosure damage, a non-compliant door / working-space clearance (AS/NZS 3000 Cl 2.10) and corrosion to fixings and bars (Condition Index 43.8/100). RED reflects a gate breach — a safety/structural P2 or an AS/NZS 3000 Cl 2.10 clearance non-compliance — that cannot be averaged away.
5. Defects
Field-observed defect(s) for this board, itemised into discrete findings — each with its own priority and category.
Ref
Category
Defect
Pri
D-01
Structural
Structural damage to enclosure
P2
D-02
Thermal / fire
Prior internal fire event — internal / component damage
P2
D-03
Clearance
Non-compliant door / working-space clearance
P2
D-04
Corrosion
Significant rust / corrosion to enclosure, fixings and bars
P3
D-05
Housekeeping
Internal dust / dirt accumulation
P4
6. Suitability for the LED works
Suitability for LED worksYES
The new LED floodlight load and driver footprint are materially smaller than the legacy HID gear removed, and the existing 3-phase supply, 25 mm² feed and cabinet isolation are adequate for the new works. This conclusion is universal across the fleet and is independent of condition.
7. Photographic evidence
21 site photographs. Frames outlined in orange are keyed to a priority defect (fire, structural, access or ingress evidence).
Locality#1High-mast floodlight distribution board at the base of the tower, Foxtrot pier apron.Locality#2Board and mast in context — apron edge, protective bollard and works delineation.External#3Cabinet-mounted socket-outlets, metering and main isolator; temporary supply lead connected during inspection.Labelling#4Dual emergency-stop and high-mast supply caution signage on the enclosure door.Internals#5Full-height internal arrangement — HID control gear, busbars and DIN-mounted protection; circuit schedule card on the door.Labelling#6Circuit schedule / identification card; enclosure face dirty with surface corrosion staining.Control gear#7Upper control section — HID ballasts, power-factor capacitors, terminals and field wiring.Protection#8Contactor, miniature circuit-breakers and time switch on DIN rail (control and outgoing protection).Labelling#9Schedule card with corrosion staining bleeding across the internal enclosure wall.Control gear#10Ballast / power-factor chassis with chokes and capacitors; general dirt build-up and debris at the base.Evidence · Fire#11Heat scorching and discolouration to the back panel above the ballast chassis — evidence of a previous internal fire / overheating event.Protection#12Outgoing contactor, MCB and isolator; dust accumulation on gear.Housekeeping#13As-built schematic plate heavily fouled with dust and corrosion product, impairing legibility.Reference#14As-built control / wiring schematic recovered from the enclosure — reference for the outgoing circuit design.Evidence · Access#15Door working-space clearance measured on site — opening arc confirmed non-compliant with AS/NZS 3000 Cl 2.10.Evidence · Fire#16Further heat discolouration and rust staining on the galvanised back panel adjacent to the ballast gear (prior fire).Earthing & supply#17Lower section — main earth/neutral bar, terminals and incoming supply cabling; chassis corrosion visible.Evidence · Ingress#18Enclosure base — unsealed cable penetration with loose control cabling exiting the plinth; IP integrity breach.Locality#19Board and mast with aircraft at the pier — operational apron environment.Base condition#20Cabinet base at ground level — staining, moisture marking and dirt accumulation at the plinth.Evidence · Structural#21Cabinet base / corner on the plinth showing structural damage and gapping; Foxtrot-pier tee-off cabling to the right.