# SDR SWAA2022030348166

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: February 28, 2019
- Submitted: March 3, 2022
- Operation: Air carrier
- Aircraft: N8622A
- Make and model: Boeing 737-8H4
- Registry model: [Boeing 737-8H4](https://openairdocs.org/model/boeing-737-8h4) (OpenAirDocs)
- Aircraft serial: 36919
- Aircraft time: 18,922 hours, 8,276 cycles
- System (JASC): [5310 · Fuselage Main, Structure](https://openairdocs.org/jasc/5310)
- Part: Web
- Condition: Corroded
- Location: Aft Cargo Thresh
- Stage of operation: IN
- How discovered: 9
- Nature of condition: O
- Precautionary procedure: K
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/SWAA2022030348166

## Discrepancy

LOGBOOK ENTRY REQUIRED; LOGPAGE 0659842; REF LOGPAGE 0659841. AFTER REMOVAL OF CENTER THRESHOLD IN AFT CARGO PIT; FOUND CORROSION UNDER THRESHOLD AT THE FWD END OF UNDERLYING STRUCTURE. / BLENDED AND REMOVED CORROSION IN AFT CARGO PIT UNDER THRESHOLD (LOWER SILL WEB) ORIG 'T' .050' REMOVED .024' MATERIAL WITH .026' MATERIAL REMAINING OUT OF LIMITS IAW SRM 53-60-15-1A-1. RECEIVED NEW LOWER SILL WEB LOCATED AND DRILLED AND INSTALLED IAW DWG 146A8123 TAG:NB1021

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