# SDR SWAA2021081895082

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: July 15, 2021
- Submitted: August 18, 2021
- Operation: Air carrier
- Aircraft: [N444WN](https://openairdocs.org/aircraft/N444WN), registered now
- Make and model: Boeing 737-7H4
- Registry model: [Boeing 737-7H4](https://openairdocs.org/model/boeing-737-7h4) (OpenAirDocs)
- Aircraft serial: 29839
- Aircraft time: 61,121 hours, 35,983 cycles
- System (JASC): [5320 · Fuselage Miscellaneous Structure](https://openairdocs.org/jasc/5320)
- Part: Support
- Condition: Corroded
- Location: Bs 986 Lbl22
- 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/SWAA2021081895082

## Discrepancy

CORROSION ON SUPPORT BS 986+9 LBL 22 WL 208 ; / [01] REMOVED CORROSION FROM BS 986+9 LBL 22 WL208 IAW SRM 51-10-02-0G-0. REMOVED AMOUNT 1'X1'X 0.045' . ORIGINAL THICKNESS OF MATERIAL 0.080' DUE TO NO LIMITS IN SRM ; SUPPORT FOUND TO BE OUT OF LIMITS. SUPPORT WILL BE REPLACED BY NEW SUPPORT.; [02] VERIFIED; [03] VERIFIED CORROSION OUT OF LIMITS; [04] REMOVED INTERCOSTAL BS986-BS1006 LBL22 WL208 I.A.W SRM 51-40-02-0G-0; [05] LOCATED AND DRILLED NEW INTERCOSTAL BS986-BS1006 LBL22 WL208 I.A.W SRM 51-40-05-0G-0 AND BOEING DWG 147A5600 OK TO INSTALL; [06] INSPECTED LOCATED AND DRILLED NEW INTERCOSTAL BS986-BS1006 LBL22 WL208 I.A.W SRM 51-40-05-0G-0 AND BOEING DWG 147A5600 OK TO INSTALL; [07] INSTALLED NEW INTERCOSTAL BS986-BS1006 LBL22 WL208 I.A.W SRM 51-40-02-0G-0 AND BOEING DWG 147A5600; [08] RII INSPECTED INSTALLED NEW INTERCOSTAL BS986-BS1006 LBL22 WL208 I.A.W SRM 51-40-02-0G-0 AND BOEING DWG 147A5600; [09] INSPECTION COMPLETE; [10] UPDATED CORRODED ELEMENT PART NUMBER IN MEASUREMENTS TABLE.; [11] CERTIFIED UPDATED CORRODED ELEMENT PART NUMBER IN MEASUREMENTS TABLE.

---
OpenAirDocs.org is an independent research project of [Contrail Labs](https://contraillabs.com/). It is not affiliated with the FAA or the NTSB. Source documents are U.S. government works in the public domain.