# SDR CALA2022082202133

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: August 20, 2022
- Submitted: August 22, 2022
- Operation: Air carrier
- Aircraft: [N36207](https://openairdocs.org/aircraft/N36207), registered now
- Make and model: Boeing 737824
- Aircraft serial: 30579
- Aircraft time: 69,027 hours, 24,945 cycles
- System (JASC): [5510 · Horizontal Stabilizer Structure](https://openairdocs.org/jasc/5510)
- Part: Rib
- Part number: 182A4001
- Condition: Corroded
- Location: Lh Horz Stab
- Stage of operation: IN
- How discovered: O
- Nature of condition: O
- Precautionary procedure: K
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/CALA2022082202133

## Discrepancy

EA 5510-01843 REV H OP 001: LH HORZ STAB AT RIB 147.9 HAD RELEVANT INDICATION OF CRACK DURING C-SCAN. REF BY PEMCO NR.12666.0378 STALLED REPAIR DOUBLER REPAIR IAW SRM 55-10-01-2R-11 REPAIR 11. L FLIGHT CYCLES WITH REPEAT INSPECTIONS EVERY 9000 FLIGHT CYCLES 51-00-26, FIG 1. DOUBLER MEASURES 8" L X 6.5" W. INSPECTION THRESHOLD 56,000 TOTA THEREAFTER. INSPECTION METHOD DVI AND LFEC IAW 737 NDT PART 6, CRACK LOCATED STA 147.9 APPROX 28" FROM LEADING EDGE AND MEASURE S 0.75" IN LENGTH. PERFORMED CUTOUT, PERFORMED HFEC INSP. AND IN ADD EMP:V928898 PLACED ON DIP  TO INSPECT @ 56,000 CYCLES INSPECTION THRESHOLD TOMC-APPROVAL FROM SC1ELBYC COMMENT AND REPEAT INSPECTION  AT INTERVALS OF 9,000 FLT/CYCLES THEREAFTER, NSPECTION METHOD DVI AND LFEC IAW 737 NDT PART 6, IAW SRM  55-10-01-2R-11, TABLE 204 REVIEWED RECORDS UPDATE....HC QC REVIEWED INIT : 56000 TAFC (INIT WILL ITO TO RIR) RIR : 9000 F/C......HC/U389717

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