# SDR CALA2025061705624

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: June 15, 2025
- Submitted: June 17, 2025
- Operation: Air carrier
- Aircraft: [N57864](https://openairdocs.org/aircraft/N57864), registered now
- Make and model: Boeing 757-33N
- Registry model: [Boeing 757-33N](https://openairdocs.org/model/boeing-757-33n) (OpenAirDocs)
- Aircraft serial: 32588
- Aircraft time: 71,824 hours, 22,161 cycles
- System (JASC): [5320 · Fuselage Miscellaneous Structure](https://openairdocs.org/jasc/5320)
- Part: Intercostal
- Part number: 146N5700U2
- 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/CALA2025061705624

## Discrepancy

AFT CARGO FLOOR R/H FRAME WEB HAS CORROSION FROM STA 1300-1320, STR 27R TO 28R, ON THE O/B SIDE.   EVALUATED CORROSION ON FRAME WEB IN AFT CARGO FLOOR BTW STA 1300 -1320 STR 27R-28R AND FOUND OUT OF LIMITS. REMOVED AND REPLACED WITH NEW WEB IAW B757-300 SRM 53-60-04-1A-0, SRM 51-40-02.

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