# SDR SWAA2022042190009

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: March 31, 2022
- Submitted: April 22, 2022
- Operation: Air carrier
- Aircraft: N769SW
- Make and model: Boeing 737-7H4
- Registry model: [Boeing 737-7H4](https://openairdocs.org/model/boeing-737-7h4) (OpenAirDocs)
- Aircraft serial: 30588
- Aircraft time: 74,146 hours, 43,614 cycles
- System (JASC): [5320 · Fuselage Miscellaneous Structure](https://openairdocs.org/jasc/5320)
- Part: Support
- Part number: 143A948535
- Condition: Cracked
- Location: Fwd Cargo Bay
- 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/SWAA2022042190009

## Discrepancy

CORROSION ON FWD CARGO BAY AFT BULKHEAD SUPPORT AT STA 500D; RBL 18 TO LBL 18; WL 156. / [01] THERE IS NO SRM ALLOWABLE DAMAGE FOR FCB AFT BULKHEAD SUPPORT. PART TO BE REPAIRED BY REPLACEMENT IAW SRM 51-10-02-0G-0;[02] VERIFIED ACTION 1;[03] REMOVED CORROSION AT STA 500D<BR><BR>LBL 1 0.005'<BR>LBL 2 0.003'<BR>LBL 9 0.004'<BR>LBL 17 0.003'<BR>LBL 18 0.004'<BR>RBL 1 0.003'<BR>RBL 2 0.003'<BR>RBL 9 0.004'<BR>RBL 14 0.005'<BR>RBL 18 0.006'<BR><BR>ORIGINAL MATERIAL THICKNESS : 0.071 ; THE DEEPEST DAMAGE : 0.006'. DAMAGE DOES NOT EXCEED 10% OF ORIG. MATERIAL THICKNESS. FOUND TO BE WITHIN LIMIT<BR><BR>CALIBRATION TOOL DEPTH GAUGE<BR>ID : ATS1225<BR>S/N : UNKNOWN<BR>DUE : 07/2022;[04] INSPECTED ACTION 3;[05] APPLIED CHEMICAL CONVERSION COATING AND PRIMER IAW SRM 51-20-01-0G-0 AND SOPM 20-41-02;[06] INSPECTION COMPLETE;[07] UPDATED MEASUREMENTS

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