# SDR DALA2026091105090

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: September 9, 2026
- Submitted: September 12, 2026
- Operation: Air carrier
- Aircraft: [N139DU](https://openairdocs.org/aircraft/N139DU), registered now
- Make and model: Airbus BD-500-1A10
- Registry model: [Airbus BD-500-1A10](https://openairdocs.org/model/airbus-canada-ltd-ptnrsp-bd-500-1a10) (OpenAirDocs)
- Aircraft serial: 50058
- Aircraft time: 15,119 hours, 7,120 cycles
- System (JASC): [5350 · Aerodynamic Fairings](https://openairdocs.org/jasc/5350)
- Part: Support
- Condition: Corroded
- 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/DALA2026091105090

## Discrepancy

CORROSION ON WTB FAIRING SUPPORT STRUCTURE AT LONGERON 20" AFT OF FR48 TO FR52 LBL4.   ACCOMPLISHED ER/A# 636699-14 REV-ORIGINAL. ASSOCIATED ER/A 14-636699 ADDED FOR AC 8139. (LP# 1804346; AIRCRAFT WAS GROUNDED)

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