# SDR UPS99230295

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: August 2, 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): [5711 · Wing Spar](https://openairdocs.org/jasc/5711)
- Part: Spar Chord
- Condition: Corroded
- Location: Ws 346-642
- 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/UPS99230295

## Discrepancy

INSPECTION TYPE:C, CORROSION C57-562-02-1B, L/W FWD UPPER SPAR CHORD ON HORIZONTAL FLANGE AT NR 4 SLAT ACTUATOR O/B MOUNT ANGLE.  CORROSION OUT OF LIMITS PER SRM 57-10-1.  REMOVED SECTION FROM FSS 346-FSS 642 FRONT SPAR TO BE REPLACED ON NRC 934257.

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