# SDR UPS99230364

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: August 5, 1999
- Submitted: March 26, 2000
- Operation: Air carrier
- Aircraft: N935UP
- Make and model: Boeing 727-1A7C
- Registry model: [Boeing 727-1A7C](https://openairdocs.org/model/boeing-727-1a7c) (OpenAirDocs)
- Aircraft serial: 20143
- System (JASC): [5754 · Leading Edge Devices](https://openairdocs.org/jasc/5754)
- Part: Rib
- Part number: 65172807
- Condition: Cracked
- Location: Nr 4 Le Slat
- 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/UPS99230364

## Discrepancy

INSPECTION TYPE:C WHILE WORKING CUSTOMER CARD #934321 FOUND CRACKED RIB IN NR 4 SLAT, 3RD RIB I/B OF O/B SLAT TRACK WHERE RIB ATTACHES TO LOWER AFT CHORD.  REMOVED CRACKED RIB AND INSTALLED NEW RIB PER SRM 51-30-2.

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