# SDR UPS96421770

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: September 12, 1996
- Submitted: March 26, 2000
- Operation: Air carrier
- Aircraft: N520UP
- Make and model: Boeing 747 212B
- Registry model: [Boeing 747 212B](https://openairdocs.org/model/boeing-747-212b) (OpenAirDocs)
- Aircraft serial: 21943
- System (JASC): [5311 · Fuselage Main, Frame](https://openairdocs.org/jasc/5311)
- Part: Frame
- Condition: Corroded
- Location: Bs 1920
- 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/UPS96421770

## Discrepancy

INSPECTION TYPE-C, S/M DEEP CORROSION ON UPPER CHORD FRAME STA 1920 RT SIDE BETWEEN STR 42 TO 43.  UPPER CHORD REMOVED, FABRICATED NEW CHORD PER SRM 53-10-23, CHORD INSTALLED PER SRM 51-30-02, OBTAINED FROM STA STOCK.

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