# SDR AALA201909049059

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: August 26, 2019
- Submitted: September 9, 2019
- Operation: Air carrier
- Aircraft: [N971AN](https://openairdocs.org/aircraft/N971AN), registered now
- Make and model: Boeing 737823
- Aircraft serial: 29547
- Aircraft time: 53,201 hours, 21,973 cycles
- System (JASC): [5320 · Fuselage Miscellaneous Structure](https://openairdocs.org/jasc/5320)
- Part: Web
- Part number: 654A000358
- 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/AALA201909049059

## Discrepancy

AIRCRAFT IN BASE MAINTENANCE: CORROSION ON WEB FROM FR 470 TO FR 480, S-25R, LBL22. REPLACED WEB PER 51-00-05 AND DRAWING 143A8122Y10, SRM 51-40-05, SRM 51-40-08, SRM 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.