# SDR SWAA2021081926481

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: February 25, 2020
- Submitted: August 19, 2021
- Operation: Air carrier
- Aircraft: N798SW
- Make and model: Boeing 737-7AD
- Registry model: [Boeing 737-7AD](https://openairdocs.org/model/boeing-737-7ad) (OpenAirDocs)
- Aircraft serial: 28436
- Aircraft time: 69,451 hours, 41,534 cycles
- System (JASC): [5320 · Fuselage Miscellaneous Structure](https://openairdocs.org/jasc/5320)
- Part: Channel
- Condition: Corroded
- Location: Bs 967-986
- 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/SWAA2021081926481

## Discrepancy

CORROSION ON AED MOPSILL BS 967-986 LBL45 WL 208 / REMOVED CORROSION FROM MOPSILL AT BS984; LBL 45; WL 208 IN AN AREA OF L= 1.0' X W= 0.5' X D= .030' PER SRM 51-10-02-0G-0; FOUND TO BE OUT OF LIMITS PER B737 SRM 53-70-15-1A-1; PAR. 4.D. FIG; 103; DETAIL D. REMOVED AND REPLACED AED MOPSILL LBL 45 PER B737 SRM 51-40-02-0G-0; AND BOEING DWG. # 147A8501; REV. B.

---
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.