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

N Apron boards · this board highlighted
GPS (lat, long)-37.671811, 144.846510
Zone / apronFoxtrot pier, apron field lighting
Upstream source (parent DB / sub)To be confirmed against airfield reticulation drawings
Inspected21–22 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 fromSub 40
Upstream CB way(s)—
Phases3-phase
Line voltage400 V (L-L)
Phase-earth voltage230 V (L-N)
Earthing systemReticulated
Upstream protectionIsolator only (no OCPD confirmed at board)
Supply cable schedule
Active conductor size25 mm²
Configuration1x4C
Conductor arrangementcircular
Parallel sets1
Conductor materialCopper
Insulation / typePVC
ArmourUnarmoured
Installation methodUnderground Enclosure
Conduit100 mm
Loaded circuits in conduit1
Estimated depth0.5 m
Earth arrangementSeparate — 25 mm²
Approx. lengthNot 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.

DimensionScoreGradeObservation
Electrical safety & compliance0None observedNone observed
Structural & enclosure integrity3Major / safety (P2)Enclosure & chassis mechanical integrity
Corrosion & protective coating2Moderate (P3)Corrosion of fixings, bars and coatings; general fouling
Ingress protection0None observedNone observed
Access & working space3Major / safety (P2)Door opening arc and working-space clearance
Thermal / fire & component3Major / 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.

RefCategoryDefectPri
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
Locality #1High-mast floodlight distribution board at the base of the tower, Foxtrot pier apron.
Locality
Locality #2Board and mast in context — apron edge, protective bollard and works delineation.
External
External #3Cabinet-mounted socket-outlets, metering and main isolator; temporary supply lead connected during inspection.
Labelling
Labelling #4Dual emergency-stop and high-mast supply caution signage on the enclosure door.
Internals
Internals #5Full-height internal arrangement — HID control gear, busbars and DIN-mounted protection; circuit schedule card on the door.
Labelling
Labelling #6Circuit schedule / identification card; enclosure face dirty with surface corrosion staining.
Control gear
Control gear #7Upper control section — HID ballasts, power-factor capacitors, terminals and field wiring.
Protection
Protection #8Contactor, miniature circuit-breakers and time switch on DIN rail (control and outgoing protection).
Labelling
Labelling #9Schedule card with corrosion staining bleeding across the internal enclosure wall.
Control gear
Control gear #10Ballast / power-factor chassis with chokes and capacitors; general dirt build-up and debris at the base.
Evidence · Fire
Evidence · Fire #11Heat scorching and discolouration to the back panel above the ballast chassis — evidence of a previous internal fire / overheating event.
Protection
Protection #12Outgoing contactor, MCB and isolator; dust accumulation on gear.
Housekeeping
Housekeeping #13As-built schematic plate heavily fouled with dust and corrosion product, impairing legibility.
Reference
Reference #14As-built control / wiring schematic recovered from the enclosure — reference for the outgoing circuit design.
Evidence · Access
Evidence · Access #15Door working-space clearance measured on site — opening arc confirmed non-compliant with AS/NZS 3000 Cl 2.10.
Evidence · Fire
Evidence · Fire #16Further heat discolouration and rust staining on the galvanised back panel adjacent to the ballast gear (prior fire).
Earthing & supply
Earthing & supply #17Lower section — main earth/neutral bar, terminals and incoming supply cabling; chassis corrosion visible.
Evidence · Ingress
Evidence · Ingress #18Enclosure base — unsealed cable penetration with loose control cabling exiting the plinth; IP integrity breach.
Locality
Locality #19Board and mast with aircraft at the pier — operational apron environment.
Base condition
Base condition #20Cabinet base at ground level — staining, moisture marking and dirt accumulation at the plinth.
Evidence · Structural
Evidence · Structural #21Cabinet base / corner on the plinth showing structural damage and gapping; Foxtrot-pier tee-off cabling to the right.