# SDR 21GA20230911011

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: September 11, 2023
- Submitted: September 11, 2023
- Operation: Air carrier
- Aircraft: [N765CK](https://openairdocs.org/aircraft/N765CK), registered now
- Make and model: Boeing 767-3P6
- Registry model: [Boeing 767-3P6](https://openairdocs.org/model/boeing-767-3p6) (OpenAirDocs)
- Aircraft serial: 26238
- Aircraft time: 90,877 hours, 27,713 cycles
- System (JASC): [5511 · Horizontal Stabilizer, Spar/Rib](https://openairdocs.org/jasc/5511)
- Part: Stringer
- Part number: UNKNOWN
- Condition: Corroded
- Location: Zone 300
- Part time: 90,877 hours, 27,713 cycles
- Stage of operation: IN
- How discovered: E
- Nature of condition: O
- Precautionary procedure: K
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/21GA20230911011

## Discrepancy

CORROSION FOUN DURING SURFACE HFEC AT HORZ STAB UPPER STRINGER S-5L AND LBL 39 ON LOWER AFT FLANGE UPPER SURFACE. REPAIRED PER KALITTA DWG 55102302-1 OR.

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