# SDR ASAA2025013056069

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: January 30, 2025
- Submitted: February 18, 2025
- Operation: Air carrier
- Aircraft: [N531AS](https://openairdocs.org/aircraft/N531AS), registered now
- Make and model: Boeing 737890
- Aircraft serial: 35199
- Aircraft time: 51,749 hours, 15,285 cycles
- System (JASC): [5320 · Fuselage Miscellaneous Structure](https://openairdocs.org/jasc/5320)
- Part: Web
- Part number: 146A812325
- Part serial: NSN
- 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/ASAA2025013056069

## Discrepancy

AFT PIT LOWER DOOR SILL WEB HAS AREAS OF CORROSION. GROUNDED - YES. REMOVED AND REPLACED AFT PIT LOWER DOOR SILL WEB IAW B737-800 SRM 51-40-02-05-0W= 1" O= .050" R= .041 L= 9" D=.009".

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