# SDR SWAA2022020262902

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: January 21, 2022
- Submitted: February 2, 2022
- Operation: Air carrier
- Aircraft: N7864B
- Make and model: Boeing 737-7Q8
- Registry model: [Boeing 737-7Q8](https://openairdocs.org/model/boeing-737-7q8) (OpenAirDocs)
- Aircraft serial: 30638
- Aircraft time: 57,729 hours, 38,472 cycles
- System (JASC): [5511 · Horizontal Stabilizer, Spar/Rib](https://openairdocs.org/jasc/5511)
- Part: Spar
- Condition: Corroded
- Location: L/H Horiz. Stab.
- Stage of operation: UK
- 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/SWAA2022020262902

## Discrepancy

LT HORIZONTAL STAB UPPER FLANGE OF REAR SPAR CORRODED AT STAB STA 321 TO 330 ; / [01] UPDATED CHART OF MEASUREMENTS.; [02] UPDATED MEASUREMENTS A FAR AS POSSIBLE IN CURRENT STATE OF ASSEMBLY. PHOTOS ATTACHED.; [03] VERIFIED CORRECTIVE ACTION 1 AND 2; [04] CHANGED CORROSION LEVEL FROM 3 TO 2. ADDED GENERAL COMMENTS.; [05] LT HORIZ. STAB ASSY. WILL BE REPLACED ON FAULT NO: TTG8Q00AG4PT.; [06] VERIFIED

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