# SDR ASAA2019040978929

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: March 17, 2019
- Submitted: April 9, 2019
- Operation: Air carrier
- Aircraft: [N644AS](https://openairdocs.org/aircraft/N644AS), registered now
- Make and model: Boeing 737790
- Aircraft serial: 30795
- Aircraft time: 51,265 hours, 24,585 cycles
- System (JASC): [5315 · Fuselage Main, Floor Beam](https://openairdocs.org/jasc/5315)
- Part: Floorbeam
- Part number: 141A25136
- Condition: Corroded
- Location: Bs 268
- 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/ASAA2019040978929

## Discrepancy

COCKPIT FLOOR BEAM STA. 268 AT COCKPIT DOOR CORRODED. GROUNDED - YES. REMOVED CORROSION ON LATERAL INTERCOSTAL AT STA 268 LB L-10 TO RBL 10 IAW B737-700 SRM51-10-02,ORIG THICKNESS .050 REMOVED .007 REMAINING.043 FOUND TO BE OUT OF LIMITS IAW B737-700 SRM 53-10-51,ACCOMPLISHED CAT A REPAIR TO THE LATERAL INTERCOSTAL IAW ASA EA 700-53EA-21414 REV 00.

---
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.