# SDR SWAA2021101221635

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: September 20, 2021
- Submitted: October 12, 2021
- Operation: Air carrier
- Aircraft: [N7843A](https://openairdocs.org/aircraft/N7843A), registered now
- Make and model: Boeing 737752
- Aircraft serial: 35786
- Aircraft time: 47,875 hours, 24,909 cycles
- System (JASC): [5320 · Fuselage Miscellaneous Structure](https://openairdocs.org/jasc/5320)
- Part: Support
- Condition: Corroded
- Location: Fuselage
- Stage of operation: IN
- How discovered: 9
- Nature of condition: O
- Precautionary procedure: K
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/SWAA2021101221635

## Discrepancy

CORROSION ON FORWARD CARGO BAY FLOOR TO SIDEWALL SUPPORT AT BS 500B+15, LBL 24, WL 154.  INSTALLED TWO LT FLOOR TO SIDE SUPPORT DOUBLERS IAW SRM 51-40-02 AND DWG 143A7501.  FOUND THREE INTERCOSTALS CRACKED UNDER ANGLE LOCATION. RAISED FAULTS TTG8Q006NSXR; TTG8Q006NSXV; TTG8Q006NSTP.   INTERCOSTALS REPLACED ON FAULTS TTG8Q006NSXR; TTG8Q006NSXV; TTG8Q006NSTP.  INSTALLED ON FORWARD CARGO BAY FLOOR TO SIDEWALL SUPPORT IAW SRM 51-40-02,  DWG 143A7500, & DWG 143A7505.

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