# SDR CALA2025092909369

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: September 25, 2025
- Submitted: September 29, 2025
- Operation: Air carrier
- Aircraft: [N77258](https://openairdocs.org/aircraft/N77258), registered now
- Make and model: Boeing 737824
- Aircraft serial: 30802
- Aircraft time: 75,311 hours, 28,294 cycles
- System (JASC): [5711 · Wing Spar](https://openairdocs.org/jasc/5711)
- Part: Spar
- Part number: 112A2101204
- Condition: Corroded
- Location: Zone 600
- Stage of operation: IN
- How discovered: O
- Nature of condition: O
- Precautionary procedure: K
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/CALA2025092909369

## Discrepancy

INTERGRANULAR CORROSION RT WING IB FRONT SPAR AT BOOST PUMP LOWER GROUND WIRE ATTACHMENT AREA.  RT WING IB FRONT SPAR AT BOOST PUMP LOWER GROUND WIRE ATTACHMENT FOUND OUT OF LIMITS , PERFORMED REPAIR ON AREAS IAW AAR ESR-WI 13-12798 AND ECRA 5720-03564.

---
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.