# SDR ASAA2026080568336

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: August 5, 2026
- Submitted: August 31, 2026
- Operation: Air carrier
- Aircraft: [N474AS](https://openairdocs.org/aircraft/N474AS), registered now
- Make and model: Boeing 737990ER
- Aircraft serial: 40715
- Aircraft time: 41,075 hours, 12,860 cycles
- System (JASC): [5320 · Fuselage Miscellaneous Structure](https://openairdocs.org/jasc/5320)
- Part: Shield
- Part number: 146A8127U12
- 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/ASAA2026080568336

## Discrepancy

AFT CARGO FWD SHIELD HAS CORROSION. GROUNDED - YES. REMOVED CORROSION & FOUND OUT OF LIMITS IAW BOEING SRM 53-60-15-1A-1 STEP 4G(2), REMOVED & REPLACED SHIELD IAW SRM 51-40-02-0G-0 STEP 4,

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