# SDR USAA990376

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: May 19, 1999
- Submitted: March 26, 2000
- Operation: Air carrier
- Aircraft: [N407US](https://openairdocs.org/aircraft/N407US), registered now
- Make and model: Boeing 737401
- Aircraft serial: 23877
- System (JASC): [5753 · Trailing Edge Flaps](https://openairdocs.org/jasc/5753)
- Part: Support
- Part number: 655224617
- Condition: Corroded
- Location: Te Mid Flap
- Part time: 30,855 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/USAA990376

## Discrepancy

CLT - DURING SHOP VISIT, FOUND CORROSION ON CARRIAGES SUPPORT ARM INBOARD MID FLAP, INBOARD CARRIAGE, OUTBOARD ARM AT BEARING MOUNT HOLE FOR ECCENTRIC BUSHING.  CORROSION TASK NR C57-306-04, CORROSION LEVEL 2.  DEFECTIVE PART REPLACED WITH IDENTICAL PART NR.  (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.