# SDR ASAA2017050120748

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: May 1, 2017
- Submitted: May 16, 2017
- Operation: Air carrier
- Aircraft: [N581AS](https://openairdocs.org/aircraft/N581AS), registered now
- Make and model: Boeing 737890
- Aircraft serial: 35188
- Aircraft time: 38,199 hours, 11,504 cycles
- System (JASC): [5320 · Fuselage Miscellaneous Structure](https://openairdocs.org/jasc/5320)
- Part: Intercostal
- Part number: 141A52136
- Condition: Corroded
- Location: Fuselage
- 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/ASAA2017050120748

## Discrepancy

COCKPIT FLOOR STRUCTURE UNDER PANEL 211AF IS CORRODED. GROUNDED - YES. REMOVED CORROSION FROM LATERAL INTERCOSTAL-ORIGINAL THICKNESS .060,REMAINING .039, REMOVED .021 AND SUPPORT CHANNEL-ORIGINAL THICKNESS .040,REMAINING .028,RE-MOVED .012 BOTH FOUND TO BE OUT OF LIMITS IAW SRM 53-10-51, REPAIRED LATERAL INTERCOSTAL AND SUPPORT CHANNEL IAW EA 800-53EA-18793 DATED 05-14-17.

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