# SDR SWAA2022020734520

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: January 2, 2018
- Submitted: February 8, 2022
- Operation: Air carrier
- Aircraft: [N8310C](https://openairdocs.org/aircraft/N8310C), registered now
- Make and model: Boeing 737-8H4
- Registry model: [Boeing 737-8H4](https://openairdocs.org/model/boeing-737-8h4) (OpenAirDocs)
- Aircraft serial: 38807
- Aircraft time: 20,418 hours, 8,725 cycles
- System (JASC): [5320 · Fuselage Miscellaneous Structure](https://openairdocs.org/jasc/5320)
- Part: Intercostal
- Condition: Corroded
- Location: Aft Cargo Bay
- 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/SWAA2022020734520

## Discrepancy

AFT PIT VERTICAL INTERCOSTAL BELOW RH Z-ANGLE BETWEEN STATIONS 747 AND 767 IS CORRODED IN 5 EACH LOCATIONS ON LOWER SIDE OF UPPER FLANGE. / AFT PIT INTERCOSTAL BELOW R/H Z-ANGLE BETWEEN STA 747 AND 767 CORROSION BLENDED 'OUT OF LIMITS' AT ORIGINAL .050 REMAINING .043' REMOVED .007'. REPLACED WITH PN: 146A7505-8 TAG# HJ0673 IAW BOEING DWG # 146A 7505 AND SRM 51-40-02-0G-0

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