# SDR SWAA2022092765188

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: August 19, 2022
- Submitted: September 27, 2022
- Operation: Air carrier
- Aircraft: [N489WN](https://openairdocs.org/aircraft/N489WN), registered now
- Make and model: Boeing 737-7H4
- Registry model: [Boeing 737-7H4](https://openairdocs.org/model/boeing-737-7h4) (OpenAirDocs)
- Aircraft serial: 33855
- Aircraft time: 57,460 hours, 34,246 cycles
- System (JASC): [5320 · Fuselage Miscellaneous Structure](https://openairdocs.org/jasc/5320)
- Part: None
- 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/SWAA2022092765188

## Discrepancy

CORROSION ON FWD ENTRY DOOR MOP SILL FROM STA 294.5+7 TO STA 348.2+6; WL 208 TO WL 209; LBL 54 TO LBL 62. / [01] VERIFIED APPLICABILITY FOR SRM<BR>REMOVED CORROSION FROM FWD ENTRY DOOR MOP SILL AT STA 335 LBL 59 WL 208 WITH ORIGINAL THICKNESS 0.090' AND WITH MEASUREMENTS OF THE REWORKED AREA OF L= 1.200' W= 0.800' D= 0.015' FOUND OUT OF LIMITS IAW SRM 53-10-15-0I-1<BR><BR>TOOL DIAL DEPTH GAUGE<BR>ID: ATS401<BR>S/N UNKNOWN<BR>DATE: 10/2021<BR>DUE: 10/2022;[02] VERIFIED APPLICABILITY FOR SRM 53-10-15-0I-1REMOVED CORROSION FROM FWD ENTRY DOOR MOP SILL AT STA 335 LBL 59 WL 208 WITH ORIGINAL THICKNESS 0.090' AND WITH MEASUREMENTS OF THE REWORKED AREA OF L= 1.200' W= 0.800' D= 0.015' FOUND OUT OF LIMITS IAW SRM 53-10-15-0I-1; SRM 51-10-02TOOL DIAL DEPTH GAUGEID: ATS401S/N UNKNOWNDATE: 10/2021DUE: 10/2022;[03] REMOVED ON FWD ENTRY DOOR MOP SILL FROM BS 360 TO 270 WL 208 LBL 54 T0 LBL 62 IAW SRM 51-40-02-0G-0;[04] CERTIFY;[05] VERIFIED CORRECTIVE ACTIONS 1 AND 2.;[06] LOCATED AND DRILLED FWD ENTRY DOOR MOP SILL BS 360 -270 WL 208 LBL 54 LBL 62 IAW SRM 51-40-05-0G-0;[14] INSTALLED MOP SILL ON FWD ENTRY DOOR BS 270 TO BS 360 WL 208 LBL 54 LBL 62 IAW SRM 51-40-02 AND DWG: 141A5220 ID:0001 REV:- DWG:141A8110 ID:0011 REV:-;[15] VERIFIED CORRECTIVE ACTION #14.<BR>VERIFIED MEASUREMENTS;.

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