# SDR UPS405509

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: February 14, 1996
- Submitted: March 26, 2000
- Operation: Air carrier
- Aircraft: [N691UP](https://openairdocs.org/aircraft/N691UP), registered now
- Make and model: Boeing 747121
- Aircraft serial: 19641
- System (JASC): [5320 · Fuselage Miscellaneous Structure](https://openairdocs.org/jasc/5320)
- Part: Shear Tie
- Condition: Corroded
- Location: Bs 2180
- 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/UPS405509

## Discrepancy

WHILE IN AMS FOR C-CHECK, MAINTENANCE REPORTED CORRODED SHEAR TIE PROFILE ON AFT SIDE OF SHEAR TIE, AT BS 2180 LBL BETWEEN STR 42 AND 43.  REPLACED SHEAR TIE PROFILE ACC SRM 51-20-01 AND 51-30-02.

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