# SDR SWAA2023041009579

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: February 23, 2023
- Submitted: April 10, 2023
- Operation: Air carrier
- Aircraft: [N438WN](https://openairdocs.org/aircraft/N438WN), registered now
- Make and model: Boeing 737-7H4
- Registry model: [Boeing 737-7H4](https://openairdocs.org/model/boeing-737-7h4) (OpenAirDocs)
- Aircraft serial: 29833
- Aircraft time: 65,970 hours, 39,056 cycles
- System (JASC): [5512 · Horizontal Stabilizer, Plate/Skin](https://openairdocs.org/jasc/5512)
- Part: Skin
- 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/SWAA2023041009579

## Discrepancy

LT HORIZONTAL STABILIZER LOWER SKIN HAS A 0.375' CRACK LOCATED AT HSS 193.90 INBD SIDE BETWEEN RIVET 18 & 19 (18') COUNTING FROM THE FRONT SPAR LT HORIONTAL STABILIER LOWER SKIN HAS A 0.375 & 34.  CRACK LOCATED AT HSS 193.90 INBD SIDE BETWEEN RIVIT FASTENER 18 AND 19 (18") COUNTING FROM THE FRONT SPAR.  REMOVED PAINT AT REPAIR LOCATION. LAID OUT REPAIR FASTENERS FOR REPAIR.  PARTIALLY FABRICATED REPAIR DOUBLER & FILLER.  CUT OUT SKIN IAW SRM 55-10-01-2R-11.  FABRICATED FILLER AND PARTIALLY DRILLED DOUBLE IAW 55-10-01-2R-11.  C/W INSTALLED REPAIR PARS PER SRM 55-10-01-2R-11.  APPLIED EDGE SEALANT TO REPAIR DOUBLER PER SRM 55-10-01-2R-11.  APPLIED TOPCOAT TO REPAIR AREA PER SRM 55-10-01-2R-11 REPAIR 11.

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