# SDR ASAA2026050666273

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: May 6, 2026
- Submitted: May 27, 2026
- Operation: Air carrier
- Aircraft: [N537AS](https://openairdocs.org/aircraft/N537AS), registered now
- Make and model: Boeing 737890
- Aircraft serial: 35204
- Aircraft time: 51,819 hours, 15,512 cycles
- System (JASC): [5320 · Fuselage Miscellaneous Structure](https://openairdocs.org/jasc/5320)
- Part: Web
- Part number: 146A812325
- 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/ASAA2026050666273

## Discrepancy

AFT CARGO DOOR THRESHOLD HAS CORROSION ON UPPER SURFACE.  GROUNDED - YES. REMOVED CORROSION, EVALUATED REMAINIG THICKNESS, ORIGINAL THICKNESS .050, REMOVED .007, REMAING THICKNESS .043 FOUND TO BE OUT OF LIMITS, REMOVED AFT CARGO WEB, LOCATED AND DRILLED NEW WEB PART NUMBER: 146A8123U25 PO:1146584.1, AND INSTALLED NEW WEB IAW SRM 53-60-15, SRM 51-40-05, SRM 51-40-02, AND BAC DWG 146A86640 REV-.

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