# SDR CALA2021092801700

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: September 27, 2021
- Submitted: September 29, 2021
- Operation: Air carrier
- Aircraft: [N34282](https://openairdocs.org/aircraft/N34282), registered now
- Make and model: Boeing 737824
- Aircraft serial: 31634
- Aircraft time: 55,005 hours, 19,790 cycles
- System (JASC): [5500 · Empennage Structure](https://openairdocs.org/jasc/5500)
- Part: Skin
- Part number: 182A40021
- Condition: Cracked
- Location: Lh 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/CALA2021092801700

## Discrepancy

SUPPORT TASK EA 5510-01843 OP1 LH HORIZONTAL STABILIZER LOWER IN- SPAR SKIN PANEL FOUND CRACK BETWEEN STA 92.7 AND 101.9 DETAIL REFER ATTACHED FIG. TRANSFER REF NON- ROUTINE L/P 9130286 AND ORIGINATED BY V897399 9,000 FLIGHT CYCLES THEREAFTER. CREATED DIP TO ACCOMPLISH SUPPLEMENTAL INSPECTIONS PER SRM 55-10-01-2R-11, PARAGRAPH 5, TABLE 204. THE INSPECTION THRESHOLD IS 56,000 TOTAL FLIGHT CYCLES AND THEN REPEAT INSPECTIONS AT THIS ITEM WAS REPAIRED IAW SRM 55-10-01-2R-11 REPAIR 11 AND REQUIRES SUPPLEMENTAL INSPECTIONS PER SRM 55-10-01-2R-11, PARAGRAPH 5 FIGURE 206.  INITIAL INSPECTION IS DUE BY 56,000 FLIGHT CYCLES AND EVERY 9,000 FLIGHT CYCLES THEREAFTER.  THIS REPAIR REPLACED THE EXISTING REPAIR ACCOMPLISHED ON L/P4778187. RII INSP APPROVED BY HX341008 REPAIRS MADE TO LH HORIZONTAL STABILIZER LOWER IN- SPAR SKIN TOMC-APPROVAL FROM SC1ELBYC COMMENT PANEL BETWEEN STA 92.7 AND 101.9 PER SRM 55-10-01-2R-11 REPAIR 11. REQUIRES INSPECTIONS PER PARAGRAPH 5 TABLE 204. INSPECTION THRESHOLD AT 56000 TOTAL FLIGHT CYCLES AND REPEAT INSPECTIONS EVERY 9000 FLIGHT CYCLES THEREAFTER. Q/C REVIEWED. Q/C REVIEWED. INSPECTIONS CREATED BY AUTODIP PENDING AIRCRAFT RECORDS AUDIT & UPDATE.

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