# SDR USAA991276

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: November 14, 1999
- Submitted: March 26, 2000
- Operation: Air carrier
- Aircraft: [N422US](https://openairdocs.org/aircraft/N422US), registered now
- Make and model: Boeing 737401
- Aircraft serial: 23989
- System (JASC): [5320 · Fuselage Miscellaneous Structure](https://openairdocs.org/jasc/5320)
- Part: Beam
- Condition: Corroded
- Location: Bs 294.5
- Part time: 31,198 hours
- Stage of operation: IN
- Nature of condition: O
- Precautionary procedure: K
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/USAA991276

## Discrepancy

CLT - DURING Q-4 CHECK VISUAL INSPECTION, FOUND A 10 INCH AREA OF CORROSION RIGHT CREASEBEAM INNER CHORD 1.5 INCH AFT OF STATION 294.5 TO 3.25 INCH FORWARD OF 360 CHORD.  CORROSION LEVEL 1.  INSTALLED NEW PART PER SRM 53-10-15.  (M)

---
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.