# SDR CALA2022032500774

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: March 23, 2022
- Submitted: March 25, 2022
- Operation: Air carrier
- Aircraft: [N12125](https://openairdocs.org/aircraft/N12125), registered now
- Make and model: Boeing 757-200 SERIES
- Registry model: [Boeing 757-200 SERIES](https://openairdocs.org/model/boeing-757-200-series) (OpenAirDocs)
- Aircraft serial: 28967
- Aircraft time: 86,508 hours, 21,163 cycles
- System (JASC): [5320 · Fuselage Miscellaneous Structure](https://openairdocs.org/jasc/5320)
- Part: Floor Support
- Part number: 146N56501
- Condition: Corroded
- Location: Bs1675bl0
- 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/CALA2022032500774

## Discrepancy

TRANSCRIBED FROM HAECO NR 9284825. B757-53-3-0579/CBN AFT WET AREA FLOOR SUPPORT CHANNEL CORRODED AT FASTENER HOLE BS 1675, BL 0. DOT: T679. REMOVED AND REPLACED FLOOR SUPPORT CHANNEL IAW B757-200 SRM 51-4 0-02 AND BAC DWG 146N5230 REV-. REMOVED AND REINSTALLED GUSSET I AW B757-200 SRM 51-40-02 AND BAC DWG 146N5230 REV-.  REF HAECO G SO MECH V899876, INSP QC021

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