# SDR CALA2015041300276

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: April 12, 2015
- Submitted: April 13, 2015
- Operation: Air carrier
- Aircraft: [N37293](https://openairdocs.org/aircraft/N37293), registered now
- Make and model: Boeing 737824
- Aircraft serial: 33453
- Aircraft time: 33,156 hours, 11,493 cycles
- System (JASC): [5512 · Horizontal Stabilizer, Plate/Skin](https://openairdocs.org/jasc/5512)
- Part: Skin
- 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/CALA2015041300276

## Discrepancy

RIGHT HORIZONTAL STAB LOWER SKIN HAS A CRACK INDICATION AT RIB STATION 129.50 AFT OF DRAIN HOLE.  INSTALLED HORIZONTAL STAB LOWER IN SPAR SKIN EXTERNAL DOUBLER IAW SRM 55-10-01 REPAIR 11.  INSPECTION THRESHOLD OF 56000 FLIGHT CYCLES AFTER REPAIR INSTALLATION & 9000 FLIGHT CYCLES THEREAFTER IAW SRM 55-10-01 PART 5 TABLE 204.  INSPECT CATEGORY B INTERIM REPAIR AT 56,000 FLIGHT CYCLES AFTER REPAIR INSTALLED & REPEAT EVERY 9000 FLIGHT CYCLES,  DV & LFEC IAW SRM 55-10-01 REPAIR 11 PG 218 TABLE 204.  DIP CTL 13621.

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