# SDR SWAA2018032720745

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: February 26, 2018
- Submitted: March 27, 2018
- Operation: Air carrier
- Aircraft: N7728D
- Make and model: Boeing 737-7BD
- Registry model: [Boeing 737-7BD](https://openairdocs.org/model/boeing-737-7bd) (OpenAirDocs)
- Aircraft serial: 33925
- Aircraft time: 39,740 hours, 19,617 cycles
- System (JASC): [5510 · Horizontal Stabilizer Structure](https://openairdocs.org/jasc/5510)
- Part: Stiffener
- Part number: 186A100041
- Part serial: IC0759
- Condition: Cracked
- Location: Horizontal Stab
- 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/SWAA2018032720745

## Discrepancy

LEFT HORIZONTAL STABILIZER INSPAR RIB AT HSS 129.50 CRACKED AT THIRD STIFFENER FROM FORWARD END.   REPAIRED THE STIFFENER IAW ER AND EA.

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