# SDR CALA2020010600017

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: December 22, 2019
- Submitted: January 6, 2020
- Operation: Air carrier
- Aircraft: [N24729](https://openairdocs.org/aircraft/N24729), registered now
- Make and model: Boeing 737724
- Aircraft serial: 28945
- Aircraft time: 66,834 hours, 23,476 cycles
- System (JASC): [5320 · Fuselage Miscellaneous Structure](https://openairdocs.org/jasc/5320)
- Part: Intercostal
- Part number: 645486215
- Condition: Corroded
- Location: Fuselage
- 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/CALA2020010600017

## Discrepancy

B737-53-3-0737 AFT WET AREA, AFT PRESSURE BULKHEAD LOWER CLOSE OUT ANGLE ON FWD SIDE AT RBL 46 HAS CORROSION. REF BY PEMCO NRS 2664N343. REMOVES CORROSION FROM AFT B/HEDD LWR CLOSE INTERCOSTAL (ANGLE) BE OUT OF LIMITS. REMOVED INTERCOSTAL, FAD NEW INTERCOSTAL ON P EMCO TRAVELER 2664N100. LOCATED, DRILLED AND INSTALLED NEW INTER COSTAL AT AFT WET AREA, AFT PRESSURE B/HEAD, LWR R/SIDE IDW 00 FWD SIDE. R/H ORIGINAL .020 LOST .012, REMAIN 0.008. FOUND TO WORK, ENTERED. B-737-700 SRM 51-10-02, 51-40-02, 51-40-05 AND 53-80-08. B-737-700 SRM 51-10-02, 51-40-02, 51-40-05 AND 53-80-08. WORK BY, ENTERED.

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