# SDR DALA2016041402943

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: April 13, 2016
- Submitted: April 15, 2016
- Operation: Air carrier
- Aircraft: [N544US](https://openairdocs.org/aircraft/N544US), registered now
- Make and model: Boeing 757251
- Aircraft serial: 26491
- Aircraft time: 62,031 hours, 20,245 cycles
- System (JASC): [5310 · Fuselage Main, Structure](https://openairdocs.org/jasc/5310)
- Part: Crease Beam
- Condition: Corroded
- Location: Bs 440-450
- 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/DALA2016041402943

## Discrepancy

PASSENGER CABIN CREASE BEAM INNER CHORD HAS CORROSION AT STA 440-450 LEFT SIDE. FOUND CORROSION ON CREASE BEAM AT BS 445 TO BE OUT OF LIMITS100%  MATERIAL LOSS. REPAIRED BEAM FROM BS 430-470 LEFT SIDE. IAW B757-200 SRM 53-00-13 REPAIR 1 PAGE 201 TO 210, SRM 53-30-13 ALLOWABLE DAMAGE 1, AMM 51-21-00 PAGE 1, AMM 51-24-03 PAGE 1-3.

---
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.