# SDR CALA2026012713351

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: January 26, 2026
- Submitted: January 27, 2026
- Operation: Air carrier
- Aircraft: [N35236](https://openairdocs.org/aircraft/N35236), registered now
- Make and model: Boeing 737824
- Aircraft serial: 28801
- Aircraft time: 77,828 hours, 30,110 cycles
- System (JASC): [5320 · Fuselage Miscellaneous Structure](https://openairdocs.org/jasc/5320)
- Part: Floor Support
- Part number: 147A5690
- Condition: Corroded
- Location: Zone 200
- 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/CALA2026012713351

## Discrepancy

SUPPORT TASK FOUND CORROSION AFT CABIN WET AREA FLOOR SUPPORT INTERCOSTAL FASTENER HOLE & UNDER LAV HOT SPOT BETWEEN STA 907 AND 927 LBL 50 MKD DOT 003 REF AAR N/R 99992011 REMOVED AND INSTALLED NEW FLOOR SUPPORT INTERCOSTAL AT AFT CABIN WET AREA BETWEEN STA 907 TO STA 927 LBL 50 PER SRM 51-40-02-0G-0 AND DWG# 147A5680. WORK ACCOMPLISHED BY V898232 INSP-102 REMOVED AND INSTALLED NEW FLOOR SUPPORT INTERCOSTAL AT AFT CABIN WET AREA BETWEEN STA 907 TO STA 927 LBL 50 PER SRM 51-40-02-0G-0 AND DWG# 147A5680. SFR/SDR HAS BEEN CREATED. REMOVED AND REPLACED FLOOR SUPPORT INTERCOSTAL AT AFT CABIN WET AREA BETWEEN STA 907 TO STA 927 LBL 50 PER SRM 51-40-02-0G-0 AND DWG# 147A5680. (WORK ACCOMPLISHED BY V936393)

---
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.