# SDR CALA2023062602002

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: June 23, 2023
- Submitted: June 26, 2023
- Operation: Air carrier
- Aircraft: [N87507](https://openairdocs.org/aircraft/N87507), registered now
- Make and model: Boeing 737824
- Aircraft serial: 31637
- Aircraft time: 50,349 hours, 17,552 cycles
- System (JASC): [5320 · Fuselage Miscellaneous Structure](https://openairdocs.org/jasc/5320)
- Part: Intercostal
- Part number: 141A56901
- Condition: Corroded
- Location: Sta294.5-312
- 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/CALA2023062602002

## Discrepancy

(SUPPORT TASK) MAIN CABIN FLOOR STRUCTURE INTERCOSTAL AT STA 294 .5 - 312 LBL12 CORRODED.  TRANSCRIBED FROM HAECO GSO NR 9282393 MECH V901143 CORROSION REMOVAL OF 0.050" FROM ORIGINAL 0.170", REMAINING 0.12 0" FOUND TO BE OUT OF LIMITS IAW B737-800 SRM 53-10-51. REMOVED AND REPLACED INTERCOSTAL (P/N 141A5690-1) IAW BOEING DRAWING 141 A5600 REV N AND B737-800 SRM 51-40-02.  TRANSCRIBED FROM HAECO.

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