# SDR SWAA2023100699105

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: September 11, 2023
- Submitted: October 6, 2023
- Operation: Air carrier
- Aircraft: [N906WN](https://openairdocs.org/aircraft/N906WN), registered now
- Make and model: Boeing 737-7H4
- Registry model: [Boeing 737-7H4](https://openairdocs.org/model/boeing-737-7h4) (OpenAirDocs)
- Aircraft serial: 36887
- Aircraft time: 51,081 hours, 29,796 cycles
- System (JASC): [5514 · Horizontal Stabilizer Miscellaneous Structure](https://openairdocs.org/jasc/5514)
- Part: Stiffener
- Condition: Cracked
- Location: Zn 300 Stabilize
- 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/SWAA2023100699105

## Discrepancy

R/H HORIZONTAL STAB RIB AT STA 120.30 #2 VERTICAL STIFFENER CRACKED AT LOWER END.<[01] VERIFIED STEP 1.;[02] MEASUREMENT TABLE UPDATED.;[03] REMOVED THE DAMAGE PART AT RH HORIZONTAL STABILIZER STA 120.30 RIB 2ND VERTICAL STIFFENER AND INSTALLED REPAIR PARTS IAW SRM 55-10-09-2R-5;[04] VERIFIED CORRECTIVE ACTION COMPLETE. VERIFIED MEASUREMENT TABLE COMPLETE.;[05] TASK COMPLETE.

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