# SDR SWAA2022081022376

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: June 24, 2022
- Submitted: August 10, 2022
- Operation: Air carrier
- Aircraft: [N951WN](https://openairdocs.org/aircraft/N951WN), registered now
- Make and model: Boeing 737-7H4
- Registry model: [Boeing 737-7H4](https://openairdocs.org/model/boeing-737-7h4) (OpenAirDocs)
- Aircraft serial: 36665
- Aircraft time: 39,132 hours, 23,683 cycles
- System (JASC): [5320 · Fuselage Miscellaneous Structure](https://openairdocs.org/jasc/5320)
- Part: Support Angle
- Condition: Corroded
- Location: R1 Door
- 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/SWAA2022081022376

## Discrepancy

CORROSION ON FSD MOP SILL WL 208.2; BS 312+7; RBL 57.5 & BS 312+14; RBL 58.3 (MARKED) / [01] REMOVED CORROSION ON FSD MOPSILL AT BS 312+7 IN A .8 X 2' X.003 AND BS312+14 WL208 IN A 3'X 1.5' X .016 ORIGINAL THICKNESS .080 FOUND TO BE OUT OF LIMITS PER SRM 53-10-15-1A-2 STEP 4-A 2 FIG 103 D;[02] CORRECTION TO STEP 1 ATS TOOL USED ID-E9655 S/N UNKNOWN DATE-03/2023;[03] VERIFIED ITEMS 1;2 CORRECTIVE ACTIONS.;[04] REMOVED MOP SILL FSD WL 208 RBL BS 340 TO 277 IAW SRM 51-40-02-0G-0;[05] UPDATE TO STEP 4 FOR RBL 57.5-RBL 58.3 LOCATIONS;[06] CERTIFY;[07] STARTED DRILLING MOP SILL IAW SRM 51-40-05.;[08] LOCATED AND DRILLED NEW MOP SILL FROM BS260 TO BS360 RBL 57.5 WL 208 PER SRM 51-40-05-0G-0 AND DWG 141A8310. REQUEST OK TO INSTALL.;[09] VERIFIED CORRECTIVE ACTIONS STEP 8. OK TO INSTALL GIVEN.;[10] STARTED INSTALLING NEW MOP SILL FROM BS260 TO BS360 RBL 57.5 WL 208 PER SRM 51-40-05-0G-0 AND DWG 141A8310.;[11] INSTALLED NEW MOP SILL ON FSD FROM BS260 TO BS360 RBL 57.5 WL 208 PER SRM 51-40-05-0G-0 AND DWG 141A8310.;[12] UPDATED PARTS;[13] CERTIFIED STEP 11;[14] VERIFIED CORRECTIVE ACTION #11;[15] VERIFIED MEASUREMENT TABLE<BR>TASK COMPLETE

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