# SDR REXA2026033000275

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: March 10, 2026
- Submitted: March 30, 2026
- Operation: Air carrier
- Aircraft: [N920XJ](https://openairdocs.org/aircraft/N920XJ), registered now
- Make and model: Cndair CL6002D24
- Aircraft serial: 15167
- Aircraft time: 39,993 hours, 28,166 cycles
- System (JASC): [5751 · Ailerons](https://openairdocs.org/jasc/5751)
- Part: Intercostal
- Part number: CC670130412
- Condition: Corroded
- Location: Zone 600
- 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/REXA2026033000275

## Discrepancy

FOUND AREAS OF POSSIBLE CORROSION INSIDE OF RH AILERON AT WS 294.50 & 319.50   REMOVED SERVICEABLE RT AILERON LOWER SKIN IAW SRM 51-42-13-001-001-A01, SRM 51-42-22-001-001-A01 & SRM 51-42-21-001-001-A01. AFTER REMOVAL OF RT AILERON LOWER SKIN,  PERFORMED A DETAILED VISUAL INSP OF AILERON INTERNAL STRUCTURE & INTERNAL SURFACES OF UPPER & LOWER SKINS IAW NDTM 51-20-009-210-A01. FOUND INTERCOSTAL TO BE CORRODED & SEVERAL AREAS OF MISSING PAINT THROUGHOUT INTERNAL STRUCTURE. NO OTHER DEFECTS NOTED. REMOVED CORROSION FROM LOWER ATTACHED FLANGE OF RT AILERON INTERCOSTAL BETWEEN AIL BS 302.649 & 311.539 PER SRM 51-21-06-001-001-A01. REMOVED .014 MATERIAL MAX. FROM A NOMINAL INTERCOSTAL THICKNESS OF .032, MRT = .018. BLEND IS BEYOND 10%.  REMOVED DAMAGED RT AILERON INTERCOSTAL & LOCATED, DRILLED & INSTALLED NEW SERVICEABLE IAW SRM 51-40-11-001-001-A01 & 51-42-06-001-001-A01. PAINTED RT AILERON EXTERNAL SKIN AS NEEDED IAW SRM 51-25-01-001-001-A01.

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