# SDR CALA2015120400965

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: November 28, 2015
- Submitted: December 4, 2015
- Operation: Air carrier
- Aircraft: [N38424](https://openairdocs.org/aircraft/N38424), registered now
- Make and model: Boeing 737924ER
- Aircraft serial: 37095
- Aircraft time: 25,534 hours, 8,564 cycles
- System (JASC): [5511 · Horizontal Stabilizer, Spar/Rib](https://openairdocs.org/jasc/5511)
- Part: Rib
- Part number: 182A4001
- Condition: Cracked
- Location: Rt Horiz 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/CALA2015120400965

## Discrepancy

RIGHT HORIZONTAL STAB RIB 101.90, SHOWED A CRACK INDICATION 11" FROM THE REAR SPAR, INBD ROW OF FASTENERS.  STRIP PAINT IN AREA FOR FURTHER EVALUATION.  REPAIRED CRACK IAW SRM 55-10-01 REPAIR 11.  DIP ISSUED IAW REPAIR 11 PARA 5 TABLE 204 TO ACCOMPLISH BOTH A DETAILED VISUAL INSPECTION & AN EXTERNAL LFEC INSPECTION, AT INTERVALS OF 9,000 FLIGHT CYCLES, WITH AN INSPECTION THRESHOLD OF 56,000 TOTAL COMPONENT FLIGHT CYCLES.  DIP AT D48283 BEFORE 56,000 TOTAL FLIGHT CYCLES PERFORM INITIAL INSPECTION & REPEAT EVERY 9,000 CYCLES THEREAFTER IAW SRM 55-10-01 REPAIR 11.

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