# SDR SWAA2022010643902

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: November 16, 2021
- Submitted: January 6, 2022
- Operation: Air carrier
- Aircraft: N770SA
- Make and model: Boeing 737-7H4
- Registry model: [Boeing 737-7H4](https://openairdocs.org/model/boeing-737-7h4) (OpenAirDocs)
- Aircraft serial: 30589
- Aircraft time: 69,290 hours, 41,022 cycles
- System (JASC): [5313 · Fuselage Main, Longeron/Stringer](https://openairdocs.org/jasc/5313)
- Part: Tee Angle
- 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/SWAA2022010643902

## Discrepancy

CORROSION ON E&E COMPARTMENT LOWER AUXILIARY SILL S-23L FROM BS 294.5 TO 312 .  REMOVED EXFOLIATED TEE ANGLE IAW SRM 51-40-02-0G-0.  PERFORMED PENETRANT INSP ON FABRICATED ANGLE IAW SOPM 20-20-02; NO CRACKS NOTED. A NEW TEE ANGLE FABRICATED AND INSTALLED THE NEW TEE ANGLE IAW SRM 51-40-02-0G-0 AND DWG 141A8131.

---
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.