# SDR EE4Y2025091723170

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: September 17, 2025
- Submitted: September 18, 2025
- Operation: General aviation
- Filed by: [Cooperativa Autogestionaria de Servicios Aeroindus, repair station EE4Y151M](https://openairdocs.org/faa-repair-station/EE4Y151M/cooperativa-autogestionaria-de-servicios-aeroindus.md) (OpenAirDocs)
- Aircraft: N688DR
- Make and model: Emb ERJ 190-200 LR
- Registry model: [EMB ERJ 190-200 LR](https://openairdocs.org/model/embraer-erj-190-200-lr) (OpenAirDocs)
- Aircraft serial: 0688
- Aircraft time: 46,022 hours, 30,219 cycles
- System (JASC): [5330 · Fuselage Main, Plate/Skin](https://openairdocs.org/jasc/5330)
- Part: Skin
- Condition: Damaged
- Location: Zone 100
- Stage of operation: IN
- How discovered: V
- Nature of condition: O
- Precautionary procedure: K
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/EE4Y2025091723170

## Discrepancy

DURING STRUCTURE INSPECTION,  FOUND FWD FUSELAGE,  FR 18+50MM, & S27L + 155MM (JUST 8.0MM FROM STR 28L FASTENER ROW), EXTERNAL SKIN WITH LIGHTNING STRIKE WITH EXISTING BLEND OUT. BLEND OUT WAS EVALUATED & CLASSIFIED AS NON-SIGNIFICANT IAW SRM 51-75-16.  LIGHTNING STRIKE DAMAGE GOES BEYOND OF THE 50% OF SKIN THICKNESS, IT WAS REMOVED BY DRILLING A 2.3MM HOLE DIAMETER (Ø2.3MM). PERFORMED DETAIL VISUAL INSP AROUND DAMAGE AREA IAW NDT MANUAL INTRODUCTION PARAGRAPH 5B (1)(B) & NO ADDITIONAL DAMAGE WAS FOUND.  DAMAGE WAS EVALUATED IAW SRM 53-10-01 AD53,  DAMAGE IS TOO CLOSE OF THE S28L,  NO ROOM FOR THE THROUGH DAMAGE REPAIR FASTENER & WASHER. CONDITION REPORTED WAS REPAIRED IAW ETD2025-190-926754 REV. C .

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