# SDR ASAA2026040265596

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: April 2, 2026
- Submitted: April 21, 2026
- Operation: Air carrier
- Aircraft: [N528AS](https://openairdocs.org/aircraft/N528AS), registered now
- Make and model: Boeing 737890
- Aircraft serial: 35695
- Aircraft time: 52,609 hours, 19,080 cycles
- System (JASC): [5320 · Fuselage Miscellaneous Structure](https://openairdocs.org/jasc/5320)
- Part: Floor Support
- Part number: 141A5410141
- Condition: Corroded
- Location: Zone 200
- 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/ASAA2026040265596

## Discrepancy

INTERCOSTAL BETWEEN STA. 328 AND STA. 344 HAS CORROSION INBOARD FROM L1 DOOR. GROUNDED - YES. REMOVED CORROSION AND FOUND OUT OF LIMITS IAW B737-800 SRM 53-00-52-1A-1, REMOVED LOCATED AND DRILLED AND REPLACED INTERCOSTAL PER B737-800 SRM 51-40-02, 51-40-05, & IAW BOEING DWG#141A5400 REV:-.

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