# SDR ASAA2025051058058

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: May 10, 2025
- Submitted: May 20, 2025
- Operation: Air carrier
- Aircraft: [N260AK](https://openairdocs.org/aircraft/N260AK), registered now
- Make and model: Boeing 737990ER
- Aircraft serial: 36349
- Aircraft time: 28,668 hours, 9,219 cycles
- System (JASC): [5320 · Fuselage Miscellaneous Structure](https://openairdocs.org/jasc/5320)
- Part: Web
- Part number: 143A8122
- 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/ASAA2025051058058

## Discrepancy

IN FWD PIT, CARGO DOOR LOWER THRESHOLD SUBPANEL HAS SEVERAL AREAS OF CORROSION, MARKED IN RED. GROUNDED - YES. REMOVED CORROSION ON FWD CARGO DOOR LOWER SILL WEB. ORIGINAL THICKNESS IS .045", MATERIAL REMOVED IS .002", REMAINING THICKNESS IS .043", FOUND TO BE WITHIN LIMITS IAW B737-NG SRM 53-30-15-1A-1. APPLIED ALODINE AND PRIMER IAW B737-NG 51-20-01.

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