# SDR JJBA20210926002

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: September 26, 2021
- Submitted: October 7, 2021
- Operation: Air carrier
- Aircraft: [N17138](https://openairdocs.org/aircraft/N17138), registered now
- Make and model: Emb EMB-145XR
- Registry model: [EMB EMB-145XR](https://openairdocs.org/model/embraer-emb-145xr) (OpenAirDocs)
- Aircraft serial: 145727
- Aircraft time: 44,768 hours, 28,129 cycles
- System (JASC): [5300 · Fuselage Structure (General)](https://openairdocs.org/jasc/5300)
- Part: None
- Condition: None
- Stage of operation: IN
- How discovered: V
- Nature of condition: O
- Precautionary procedure: K
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/JJBA20210926002

## Discrepancy

AFT FUSELAGE, UNDER TOILET AREA, RH GUSSET BEAMS, FROM FR 61 TO 59, BOTH HAT BEAMS HAS SIGNS OF CORROSION AT BOLT HOLES 4 EACH. BLENDED OUT CORROSION AND EVALUATED AT RH GUSSET FROM FR 59 - FR 60 FOUND TO BE OUT OF LIMITS. REMOVE DAMAGE GUSSET, LOCATE AND DRILL NEW GUSSET AND INSTALL NEW GUSSET. APPLIED ALODINE, PRIMER AND TOPCOAT. CORROSION LEVEL 2

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