# SDR 97ZZZX4646

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: September 16, 1997
- Submitted: March 26, 2000
- Operation: General aviation
- Aircraft: [N1972](https://openairdocs.org/aircraft/N1972), registered now
- Make and model: Boeing 727-23
- Registry model: [Boeing 727-23](https://openairdocs.org/model/boeing-727-23) (OpenAirDocs)
- Aircraft serial: 18428
- System (JASC): [5511 · Horizontal Stabilizer, Spar/Rib](https://openairdocs.org/jasc/5511)
- Part: Spar
- Condition: Cracked
- Location: Lt H Stab Aft
- 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/97ZZZX4646

## Discrepancy

DURING ROUTINE INSPECTION OF AIRCRAFT, TWO CRACKS WERE FOUND ON THE LT HORIZONTAL STABILIZER'S AFT SPAR LOWER CHORD.  EACH CRACK WAS APPROXIMATELY 1.5 INCH LONG.  ONE CRACK WAS AT STABILIZER STA 169 AND THE OTHER WAS AT STABILIZER STA 179.

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