# SDR CALA2025080607385

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: August 2, 2025
- Submitted: August 6, 2025
- Operation: Air carrier
- Aircraft: [N73283](https://openairdocs.org/aircraft/N73283), registered now
- Make and model: Boeing 737824
- Aircraft serial: 31606
- Aircraft time: 66,576 hours, 24,786 cycles
- System (JASC): [5313 · Fuselage Main, Longeron/Stringer](https://openairdocs.org/jasc/5313)
- Part: Stringer
- Part number: 143A3244132
- Condition: Corroded
- Location: Zone 100
- 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/CALA2025080607385

## Discrepancy

AREA AFT OF FORWARD COMPARTMENT CORROSION FOUND AT STRINGER 27R B.S. 540.   APPLIED CORROSION INHIBITING COMPOUND, TO THE INTERNAL SURFACES OF THE REPAIR AREA PER AMM 51-21-91-620-802.  ACCOMPLISHED REPAIR AT STRINGER 27R, BS 500I TO 540 IAW EC/RA 5330-07576.  INSTALLED REPLACEMENT STRINGER 27RT & REPAIR SPLICE AT BS 540 TO STA 500I+10 & FRAME SHEAR TIE PER SRM 51-40-02-0G -0 , SRM 53-00-03-2R-1 AND EC/RA 5330-07576.

---
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.