Example Wind Farm, Maharashtra. UAV visual inspection with AI-assisted defect detection, reviewed by a qualified blade inspection engineer.
Report details
| Client | Example Client — Renewables Ltd (sample report, not a real client) |
| Site | Example Wind Farm, Maharashtra |
| Turbine | T02 · 2.0 MW, 3-blade horizontal axis · commissioned 2016 |
| Blade length | 52 m |
| Conditions | Clear, wind 4–6 m/s, turbine stopped and locked |
| Method | UAV visual inspection, AI-assisted defect detection with engineer review |
| Pilot | S. Chalil, DGCA remote pilot licence (sample) |
| Reviewed & approved by | SAMPLE — engineer name and blade-inspection qualification, Blade inspection engineer |
Blade condition
Jump to any blade's full findings below.
Reference
Every finding below is assigned one of five categories, driving how urgently it needs attention.
| Category | Name | Description | Recommended action |
|---|---|---|---|
| CAT 1 | Cosmetic | Surface contamination, light scratches. No effect on performance or structure. | No action. Record only. |
| CAT 2 | Superficial | Minor gel coat damage, small surface cracks, early leading-edge erosion, general wear. | No immediate action. Re-assess at the next scheduled inspection. |
| CAT 3 | Functional | Damage likely to affect performance, or to progress if left unrepaired. | Repair within 6 months. Monitor every 3 months until repaired. |
| CAT 4 | Severe | Progressed damage: large laminate exposure, tip damage, open leading or trailing edge, debonding, advanced cracking. | Repair within 3 months. Monitor monthly until repaired. |
| CAT 5 | Very severe / structural | Structural integrity of the blade is at risk. | Stop the turbine and arrange immediate repair. |
Findings overview
Each finding includes a cropped detail image, a wider context photo, and the engineer's assessment.
| Ref | Damage type | Side | Dist. from root (m) | Category |
|---|---|---|---|---|
| D001 | Crack | PS | 18.2 | CAT 3 |
| D002 | Crack | PS | 32.6 | CAT 3 |
| D003 | Crack | PS | 20.1 | CAT 3 |
| D004 | Crack | PS | 5.6 | CAT 3 |
| D005 | Lightning / burn mark | SS | 7.1 | CAT 3 |
| D006 | Lightning / burn mark | SS | 6.6 | CAT 3 |
| D007 | Surface contamination | SS | 45.7 | CAT 1 |
Longitudinal gel-coat crack running with the chord; no fibre visible at this resolution.
RecommendationRepair within 6 months. Monitor every 3 months until repaired.
Transverse surface crack in the gel coat, no laminate exposure visible.
RecommendationRepair within 6 months. Monitor every 3 months until repaired.
Transverse surface crack in the gel coat, no laminate exposure visible.
RecommendationRepair within 6 months. Monitor every 3 months until repaired.
Longitudinal gel-coat crack running with the chord; no fibre visible at this resolution.
RecommendationRepair within 6 months. Monitor every 3 months until repaired.
Burn marking adjacent to the receptor, consistent with a past strike. Receptor itself intact in view.
RecommendationRepair within 6 months. Monitor every 3 months until repaired.
Burn marking adjacent to the receptor, consistent with a past strike. Receptor itself intact in view.
RecommendationRepair within 6 months. Monitor every 3 months until repaired.
General surface soiling; no underlying damage visible once cleaned in the image.
RecommendationNo action. Record only.
| Ref | Damage type | Side | Dist. from root (m) | Category |
|---|---|---|---|---|
| D013 | Crack | PS | 20.4 | CAT 4 |
| D008 | Leading-edge erosion | LE | 29.4 | CAT 3 |
| D011 | Oil contamination | PS | 29.1 | CAT 3 |
| D009 | Leading-edge erosion | LE | 47 | CAT 2 |
| D010 | Leading-edge erosion | LE | 16.7 | CAT 2 |
| D012 | Pin hole | LE | 8.5 | CAT 2 |
Transverse surface crack in the gel coat, no laminate exposure visible.
RecommendationRepair within 3 months. Monitor monthly until repaired.
Leading-edge erosion with coating loss and pin-holing; laminate not exposed.
RecommendationRepair within 6 months. Monitor every 3 months until repaired.
Oil/grease streak running down the surface from the pitch bearing area.
RecommendationRepair within 6 months. Monitor every 3 months until repaired.
Leading-edge erosion with coating loss and pin-holing; laminate not exposed.
RecommendationNo immediate action. Re-assess at the next scheduled inspection.
Leading-edge erosion with coating loss and pin-holing; laminate not exposed.
RecommendationNo immediate action. Re-assess at the next scheduled inspection.
Isolated pin hole in the coating; no moisture staining around it.
RecommendationNo immediate action. Re-assess at the next scheduled inspection.
| Ref | Damage type | Side | Dist. from root (m) | Category |
|---|---|---|---|---|
| D014 | Oil contamination | PS | 28.8 | CAT 3 |
| D016 | Crack | PS | 38.2 | CAT 3 |
| D021 | Crack | PS | 9.2 | CAT 3 |
| D022 | Crack | PS | 37.3 | CAT 3 |
| D024 | Crack | PS | 19 | CAT 3 |
| D017 | Coating / gel coat damage | TE | 19.9 | CAT 2 |
| D018 | Leading-edge erosion | LE | 34.8 | CAT 2 |
| D020 | Leading-edge erosion | LE | 36.1 | CAT 2 |
| D015 | Surface contamination | SS | 25.8 | CAT 1 |
Oil/grease streak running down the surface from the pitch bearing area.
RecommendationRepair within 6 months. Monitor every 3 months until repaired.
Longitudinal gel-coat crack running with the chord; no fibre visible at this resolution.
RecommendationRepair within 6 months. Monitor every 3 months until repaired.
Transverse surface crack in the gel coat, no laminate exposure visible.
RecommendationRepair within 6 months. Monitor every 3 months until repaired.
Longitudinal gel-coat crack running with the chord; no fibre visible at this resolution.
RecommendationRepair within 6 months. Monitor every 3 months until repaired.
Longitudinal gel-coat crack running with the chord; no fibre visible at this resolution.
RecommendationRepair within 6 months. Monitor every 3 months until repaired.
Coating loss with exposed filler; edges sound, no delamination visible.
RecommendationNo immediate action. Re-assess at the next scheduled inspection.
Leading-edge erosion with coating loss and pin-holing; laminate not exposed.
RecommendationNo immediate action. Re-assess at the next scheduled inspection.
Leading-edge erosion with coating loss and pin-holing; laminate not exposed.
RecommendationNo immediate action. Re-assess at the next scheduled inspection.
General surface soiling; no underlying damage visible once cleaned in the image.
RecommendationNo action. Record only.
Method & limitations
Images were captured by UAV and screened by an on-board defect detection model (defy-blade-yolo11n-int8 v1, confidence threshold 0.20). Every photograph in this inspection was then reviewed by the engineer named above; the model's output is a screening aid, not the finding of record.
Categories are assigned from visual evidence only — no tap testing, thermography or internal inspection was carried out, and sub-surface damage cannot be excluded on the basis of this survey. Sizes are estimated from image scale and should be treated as approximate.