# SDR CALA2023022000474

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: February 17, 2023
- Submitted: February 20, 2023
- Operation: Air carrier
- Aircraft: [N447UA](https://openairdocs.org/aircraft/N447UA), registered now
- Make and model: Airbus A320-232
- Registry model: [Airbus A320-232](https://openairdocs.org/model/airbus-a320-232) (OpenAirDocs)
- Aircraft serial: 836
- Aircraft time: 75,476 hours, 31,306 cycles
- System (JASC): [5347 · Fuselage, Seat/Cargo Attach Fittings](https://openairdocs.org/jasc/5347)
- Part: Torsion Box
- Part number: D532305520007
- Condition: Corroded
- Location: Fr24-28
- Stage of operation: IN
- How discovered: O
- Nature of condition: O
- Precautionary procedure: K
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/CALA2023022000474

## Discrepancy

FWD CARGO PIT TORSION BOX HAS SPOTS OF CORROSION ON UPPER SURFAC E DOT M062 A3NB-53-3-6330 GENERATED AT HAECO LCQ BY V929150 PER NR 9292559(40559) REMOVED AND REPLACED TORSION BOX PLATE FRONT FR24 TO FR28 IAW SR M 51-42-11-001 BY MECH V932196 INSP BY V927281

---
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.