# SDR DALA1126415531

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: April 16, 2011
- Submitted: April 18, 2011
- Operation: Air carrier
- Aircraft: N531US
- Make and model: Boeing 757251
- Aircraft serial: 23846
- Aircraft time: 72,678 hours, 29,915 cycles
- System (JASC): [5320 · Fuselage Miscellaneous Structure](https://openairdocs.org/jasc/5320)
- Part: Intercostal
- Condition: Corroded
- Location: Fuselage
- 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/DALA1126415531

## Discrepancy

FLOORBEAM VERTICAL INTERCOSTAL AT STA 365-377 RBL 44 UPPER SURFACE HAS CORROSION AT MARKED.  FOUND OUT OF LIMITS IAW SRM 53-00-51 FIG 101 ORIGINAL MAT'L .053 LOSS MAT'L .014, REMAINING MAT'L .039, REMOVED BEAM & ANGLES.  RECEIVED PART (BEAM) DA-141N5185-24 ON STAM TRAVELER T11/878288 BATCH 0001948092, LOCATED & DRILLED IAW SRM 51-40-05, INSTALLED NEW VERTICAL BEAM & 94EA) ANGLES IAW 51-40-02.

---
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, except the copies of manufacturers’ service documents, which belong to their rights holders.