# SDR ASAA2026053166698

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: May 31, 2026
- Submitted: June 16, 2026
- Operation: Air carrier
- Aircraft: [N277AK](https://openairdocs.org/aircraft/N277AK), registered now
- Make and model: Boeing 737990ER
- Aircraft serial: 62472
- Aircraft time: 24,565 hours, 7,940 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/ASAA2026053166698

## Discrepancy

AFT CARGO DOOR LOWER CUTOUT STRUCTURE WEB HAS SEVERAL AREAS OF CORROSION. GROUNDED - YES. BLENDED AWAY CORROSION. ORIGINAL THICKNESS .045, MAT LOSS .013, NEW THICKNESS .032. AREA OUT OF LIMITS IAW SRM 53-60-15. REMOVED DAMAGED WEB IAW SRM 51-40-02. INSTALLED NEW IAW SRM 51-40-02 REF B, & DWG 143A8122.

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