# SDR SWAA2022072721327

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: June 21, 2022
- Submitted: July 28, 2022
- Operation: Air carrier
- Aircraft: [N486WN](https://openairdocs.org/aircraft/N486WN), registered now
- Make and model: Boeing 737-7H4
- Registry model: [Boeing 737-7H4](https://openairdocs.org/model/boeing-737-7h4) (OpenAirDocs)
- Aircraft serial: 33852
- Aircraft time: 59,624 hours, 35,506 cycles
- System (JASC): [5320 · Fuselage Miscellaneous Structure](https://openairdocs.org/jasc/5320)
- Part: Intercostal
- Part number: 146A812319
- Condition: Corroded
- Location: Aft 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/SWAA2022072721327

## Discrepancy

CORROSION ON AFT CARGO BAY INTERCOSTAL AT RBL 19 BS 767+6. / [01] VERIFIED APPLICABILITY PER SRM 53-60-15-1A-1<BR>REMOVED CORROSION ON AFT CARGO BAY INTERCOSTAL RBL 19 BS 767+6. REWORKED AREA L=3';W=1.3';D=0.009' ORIGINAL THICKNESS 0.050'. FOUND TO BE OUT OF LIMIT IAW SRM 53-60-15-1A-1 STEP4G(2)(B) FIG 103.<BR>TOOL USED ID:ATS1672<BR>S/N:65092939<BR>DUE:03/2023;[02] UPDATED MEASUREMENTS;[03] VERIFIED CORRECTIVE ACTION 1 AND MEASUREMENT TABLE.;[04] REMOVED ON AFT CARGO BAY INTERCOSTAL AT RBL 19 BS 767 TO BS 787 IAW SRM 51-40-02;[05] RECEIVED ON AFT CARGO BAY INTERCOSTAL NEW AT RBL 19 BS 767 TO BS 787 ITEM 146A8123-19 PO#865464. LOCATED AND DRILLED IAW SRM 51-40-05 AND DWG 146A8123.<BR>OK TO INSTALL;[06] PART NUMBER INFO;[07] VERIFIED CORRECTIVE ACTIONS 4-6. VERIFIED P/N UPDATE IN MEASUREMENT TABLE; OK TO INSTALL GIVEN;[08] INSTALLED ON AFT CARGO BAY INTERCOSTAL AT RBL 19 BS 767 TO BS 787 IAW SRM 51-40-02 AND DWG146A0081;[09] VERIFIED CORRECTIVE ACTION 8;[10] VERIFIED ALL WORK COMPLETE

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