# SDR CALA2019022200277

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: February 19, 2019
- Submitted: February 22, 2019
- Operation: Air carrier
- Aircraft: [N79521](https://openairdocs.org/aircraft/N79521), registered now
- Make and model: Boeing 737824
- Aircraft serial: 31662
- Aircraft time: 28,878 hours, 9,853 cycles
- System (JASC): [5510 · Horizontal Stabilizer Structure](https://openairdocs.org/jasc/5510)
- Part: Skin
- Part number: 182A4001
- 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/CALA2019022200277

## Discrepancy

FOUND CRACK INDICATION ON LEFT HORIZONTAL STABILIZER LOWER SKIN AT STATION 157.10 ABOUT 15 INCHES AFT OF LEADING EDGE SPAR REPAIRED CRACK PER SRM 55-10-01 REPAIR 11. PLACED ON DIP TO REINSPECT PER TABLE 204/REPAIR 11 AND FIGURE 206/REPAIR 11. INSPECTION THRESHOLD 56,000 FLIGHT CYCLES REPEAT INSP 9,000 FLIGHT CYCLES PER SRM 55-10-01 TOMC APPROVED PER SRM 55-10-01 REPAIR 11. PLACED ON DIP TO REINSPECT PER TABLE 204/REPAIR 11 AND FIGURE 206/REPAIR 11. INSPECTION THRESHOLD 56,000 FLIGHT CYCLES REPEAT INSP 9,000 TOMC-APPROVAL FROM SC1ELBYC COMMENT VERIFIED BY QC Q/C REVIEWED. INSPECT AT 56000 TOTAL CYCLES THEN REPEAT EVERY 9000 CYCLES THEREAFTER. RECORDS UPDATE..JF INIT: 56,000 TAFC (ON CONDITION INIT -2336WILL ITO TO RIR -2337) RIR:  9,000  FC ...JF

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