# SDR SWAA2021112933847

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: October 26, 2021
- Submitted: November 29, 2021
- Operation: Air carrier
- Aircraft: [N445WN](https://openairdocs.org/aircraft/N445WN), registered now
- Make and model: Boeing 737-7H4
- Registry model: [Boeing 737-7H4](https://openairdocs.org/model/boeing-737-7h4) (OpenAirDocs)
- Aircraft serial: 29841
- Aircraft time: 59,017 hours, 35,051 cycles
- System (JASC): [5512 · Horizontal Stabilizer, Plate/Skin](https://openairdocs.org/jasc/5512)
- Part: Skin
- Condition: Cracked
- Location: L/H Horiz. 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/SWAA2021112933847

## Discrepancy

CRACK INDICATION FOUND ON LH HORIZONTAL STABILIZER LOWER IN-SPAR SKIN AT STATION 184.70; LOCATED 25.5 INCH FROM FRONT SPAR ON INBD SIDE OF RIB. CRACK LENGTH IS 0.750 INCH. ; 2021-487817 / [01] PERFORMED PERMANENT REPAIR ON LH HORIZONTAL STABILIZER LOWER IN-SPAR SKIN AT STATION 184.70; LOCATED 25.5 INCH FROM FRONT SPAR ON INBD SIDE OF RIB. IAW EA 21-155-03374; [02] CORRECTED STEP 1; PERFORMED PERMANENT REPAIR ON LH HORIZONTAL STABILIZER LOWER IN-SPAR SKIN AT STATION 184.70; LOCATED 25.5 INCH FROM FRONT SPAR ON INBD SIDE OF RIB. IAW EA 21-155-03374 SEE INDIVIDUALS SIGNOFF BELOW; [03] TASK CARD COMPLETE AND CERTIFIED AS RII.<BR><BR><BR>SEE INDIVIDUAL SIGNOFFS BELOW.

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