# SDR CALA2025022400420

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: February 4, 2025
- Submitted: February 24, 2025
- Operation: Air carrier
- Aircraft: [N24202](https://openairdocs.org/aircraft/N24202), registered now
- Make and model: Boeing 737824
- Aircraft serial: 30429
- Aircraft time: 76,295 hours, 28,068 cycles
- System (JASC): [5320 · Fuselage Miscellaneous Structure](https://openairdocs.org/jasc/5320)
- Part: Stiffener
- Part number: 111A1308U15
- Condition: Cracked
- 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/CALA2025022400420

## Discrepancy

LOWER FUS. CENTER WING REAR SPAR STIFFENER LOWER RADIUS CRACKED AT LBL 25 STA 663.75 O/B OF L/H RAM AIR EXIT EXHAUST REF AAR N/R 9933669 REMOVED AND REPLACED LOWER FUS. CENTER WING REAR SPAR STIFFENER AT  LBL 25 STA 663.75 O/B OF L/H RAM AIR EXIT EXHAUST AS PER SRM 51-40-02-0G-0, DWG#111A1000, AND DWG#149A7210.  REMOVED AND REPLACED LOWER FUS. CENTER WING REAR SPAR STIFFENER @ LBL 25 STA 663.75 O/B OF L/H RAM ESFR:1038468 AIR EXIT EXHAUST AS PER SRM 51-40-02-0G-0, DWG#111A1000, AND DWG#149A7210.

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