# SDR CALA2022012700252

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: January 27, 2022
- Submitted: January 28, 2022
- Operation: Air carrier
- Aircraft: [N57870](https://openairdocs.org/aircraft/N57870), registered now
- Make and model: Boeing 757324
- Aircraft serial: 33525
- Aircraft time: 51,235 hours, 14,781 cycles
- System (JASC): [5310 · Fuselage Main, Structure](https://openairdocs.org/jasc/5310)
- Part: Floorbeam
- Part number: 141N5160U78
- Condition: Corroded
- Location: Floor 365.25
- 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/CALA2022012700252

## Discrepancy

(B757-53-3-0479) R1 DOOR THRESHOLD UPPER CORD FORWARD OF FLOOR B EAM 365.25 - SURFACE CORROSION, TRANSCRIBED FROM HAECO GSO NR LP 9281117 ACCOMPLISHED REPLACEMENT OF CORRODED R1 DOOR THRESHOLD UPPER CHO RD IAW B757-300 SRM 51-40-02, DWG 141N5160, B757-300 SRM 51-40-0 5 AND DWG 141N5422 AND B757-300 SRM 51-40-03. HAECO GSO MECH V93 2676 INSP QC418.

---
OpenAirDocs.org is an independent research project of [Contrail Labs](https://contraillabs.com/). It is not affiliated with the FAA or the NTSB. Source documents are U.S. government works in the public domain.