# SDR DALA2026060403393

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: May 21, 2026
- Submitted: June 5, 2026
- Operation: Air carrier
- Aircraft: [N305DU](https://openairdocs.org/aircraft/N305DU), registered now
- Make and model: Airbus BD-500-1A11
- Registry model: [Airbus BD-500-1A11](https://openairdocs.org/model/airbus-canada-lp-bd-500-1a11) (OpenAirDocs)
- Aircraft serial: 55084
- Aircraft time: 15,452 hours, 6,787 cycles
- System (JASC): [7830 · Engine Thrust Reverser](https://openairdocs.org/jasc/7830)
- Part: Thrust Reverser
- Condition: Corroded
- Location: Zone 400
- 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/DALA2026060403393

## Discrepancy

DURING H CHK IN MSP, CORROSION AND/OR MISSING COATING WAS FOUND ON THE #2 ENG, INBD THRUST REVERSER (P/N 999-3001577 WITH FTN 5T0778) TORQUE BOX V-BLADE AT THE UPPER TO LOWER V-BLADE SEGMENTS. DAMAGE EXCEEDS CMM GRAPW1500BA-A-54-30-22-00001-661A-D ALLOWABLE DAMAGE LIMITS. REPAIRED REF ER/A 633878-14 PRI REV 0, REV 1 AND ER/A 633878-14 REV ORIGINAL. NOMINAL THICKNESS: 0.350". MRT: 0.225". MAX MATERIAL REMOVED: 0.025". ASSOCIATED ER/A 14-633878 ADDED FOR AC 8305. (LP# 1605048; AIRCRAFT WAS GROUNDED)

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