# SDR IPXA12M75377

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: August 28, 2012
- Submitted: September 21, 2012
- Operation: Air carrier
- Aircraft: [N293UP](https://openairdocs.org/aircraft/N293UP), registered now
- Make and model: Doug MD-11F
- Registry model: [Doug MD-11F](https://openairdocs.org/model/mcdonnell-douglas-md-11f) (OpenAirDocs)
- Aircraft serial: 48473
- Aircraft time: 62,945 hours, 9,496 cycles
- Engine: Pwa PW4460
- System (JASC): [5313 · Fuselage Main, Longeron/Stringer](https://openairdocs.org/jasc/5313)
- Part: Longeron
- Part number: A6A7027501
- Condition: Corroded
- Location: Bs 1129
- 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/IPXA12M75377

## Discrepancy

INSPECTION TYPE: 4C, LONGERON 52, EXFOLIATED BETWEEN STA 1129/6-73 AND 1129/6-90 ON LT, RT AND BOTTOM SIDES OF FLANGES.  REPAIRED LONGERON 52 BETWEEN STA 1129/6-73 AND STA 1129/6-90 BY FABRICATION AND PART REPLACEMENT REF DWG A6A7027, SRM 51-33-01, PAGE 1 AND 30 AND SRM 51-35-01, PAGE 1.

---
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.