# SDR 98ZZZM455

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: March 27, 1998
- Submitted: March 26, 2000
- Operation: Air carrier
- Aircraft: [N860CA](https://openairdocs.org/aircraft/N860CA), registered now
- Make and model: Beech 1900D
- Registry model: [Beech 1900D](https://openairdocs.org/model/beech-1900d) (OpenAirDocs)
- Aircraft serial: UE134
- System (JASC): [5511 · Horizontal Stabilizer, Spar/Rib](https://openairdocs.org/jasc/5511)
- Part: Rib
- Part number: 1016200171
- Condition: Cracked
- Location: Horiz Stab
- Part time: 6,847 hours
- 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/98ZZZM455

## Discrepancy

DURING REMOVAL OF LEFT HORIZONTAL STABILIZER DE-ICE BOOT, RIVET HEADS FROM LEADING EDGE RIBS WERE STUCK TO OLD DE-ICE BOOT.  UPON FURTHER INVESTIGATION AND INSPECTION OF COMPLETE HORIZONTAL STABILIZER, A TOTAL OF 6 LEADING EDGE RIBS AND 4 CENTER RIBS WERE FOUND TO BE CRACKED AT VARIOUS LOCATIONS.  ALL WERE REPLACED WITH NEW PARTS FROM FACTORY.

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