# SDR ASAA2025020156005

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: February 1, 2025
- Submitted: February 18, 2025
- Operation: Air carrier
- Aircraft: [N556AS](https://openairdocs.org/aircraft/N556AS), registered now
- Make and model: Boeing 737890
- Aircraft serial: 35175
- Aircraft time: 59,270 hours, 21,024 cycles
- System (JASC): [5320 · Fuselage Miscellaneous Structure](https://openairdocs.org/jasc/5320)
- Part: Web
- Part number: 654A0000358
- 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/ASAA2025020156005

## Discrepancy

FWD PIT DOOR CUTOUT LOWER SILL WEB HAS SPOTS OF CORROSION. GROUNDED - YES. REMOVED DAMAGE FOUND TO BE OUT OF LIMITS IAW B737-800 SRM 53-30-15-1A-1. REMOVED AND REPLACED SILL WEB IAW B737-800 SRM 51-40-02-0G-0W= 2.3" O= 0.045" R= 0.037" L= 3" D= 0.008".

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