# SDR DLL14991656

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: July 23, 1999
- Submitted: March 26, 2000
- Operation: Air carrier
- Aircraft: N740DA
- Make and model: Lkheed 1011385115
- Aircraft serial: 193C1244
- System (JASC): [5512 · Horizontal Stabilizer, Plate/Skin](https://openairdocs.org/jasc/5512)
- Part: Skin
- Part number: 1524132103
- Condition: Cracked
- Location: Horiz Stab
- Stage of operation: IN
- Nature of condition: O
- Precautionary procedure: K
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/DLL14991656

## Discrepancy

HORIZONTAL STABILIZER LEFT UPPER SKIN, HSS 80, STIFFENER NR 31 SKIN CRACK.  REPAIR THE NR 4 UPPER SKIN PANEL OF THE LEFT HORIZONTAL STABILIZER WAS FOUND WITH A 1.25 CRACK AT THE RUNOUT OF STIFFENER NR 31.  THE CRACK WAS ROUTED OUT OF THE SKIN AND AN EXTERNAL ALUMINUM DOUBLER AND TRIPLER WERE INSTALLED PER ER/A 367841-14, REV A.

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