# SDR CALA2020081101093

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: August 11, 2020
- Submitted: August 11, 2020
- Operation: Air carrier
- Aircraft: [N76508](https://openairdocs.org/aircraft/N76508), registered now
- Make and model: Boeing 737824
- Aircraft serial: 31639
- Aircraft time: 41,891 hours, 14,443 cycles
- System (JASC): [5512 · Horizontal Stabilizer, Plate/Skin](https://openairdocs.org/jasc/5512)
- Part: Skin
- Part number: 182A4001
- Condition: Cracked
- Location: Horizontal Stab
- Stage of operation: IN
- How discovered: V
- Nature of condition: O
- Precautionary procedure: K
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/CALA2020081101093

## Discrepancy

LEFT HORIZONTAL STAB LOWER INSPAR SKIN AT STA 168.70 APPROX 9" FROM L/E SHOW CRACK INDICATION DURING OMNI SCAN. ENDS OF CRACK MARKED AND VERIFIED WITH EDDY CURRENT. COMPLETED REPAIR ON LH HORIZ STAB LOWER INSPAR SKIN AT STA 138.7 APPROX 9" FROM L/E REF SRM 55-10-01 REPAIR 11. ADD EMP:U162482 DIP INSP REQUIREMEMENT INIT 56000 TOTAL FLIGHT CYCLES DETAILED VISUAL INSPECTION AND EXTERNAL LOW FREQUENCY EDDY CURRENT (LFEC) INSPECTION EVERY 9000 FLIGHT CYCLES 737NDT PART 6 51-00-26, FIG 1 REF SRM PARA 5. INSPECTION REQUIREMENTS STAB LOWER IN SPAR SKIN.

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