# SDR UPS04243213

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: September 9, 2004
- Submitted: September 29, 2004
- Operation: Air carrier
- Aircraft: N938UP
- Make and model: Boeing 727173C
- Aircraft serial: 19506
- Aircraft time: 53,145 hours, 34,107 cycles
- System (JASC): [5730 · Wing, Plate/Skin](https://openairdocs.org/jasc/5730)
- Part: Stringer
- Condition: Corroded
- Location: Wing Cntr Sect
- Stage of operation: IN
- How discovered: 9
- Nature of condition: O
- Precautionary procedure: K
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/UPS04243213

## Discrepancy

INSPECTION TYPE: C, CORROSION ON WING CENTER SECTION UPPER SKIN AT STR 10C RBL 65 BS 810.  CLEANED CORROSION IAW SRM 51-10-01.  HFEC CARRIED OUT IAW B727-NDTM -5 1-00-00 PT6 FIG 4, NO DEFECTS FOUND.  FLAP PEENING CARRIED OUT IAW SOP M 20-10-03.  AREAS REPROTECTED.

---
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.