# SDR UPS405460

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: February 1, 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): [5312 · Fuselage Main, Bulkhead](https://openairdocs.org/jasc/5312)
- Part: Bulkhead
- Condition: Cracked
- Location: Bs 2160
- 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/UPS405460

## Discrepancy

WHILE IN AMS FOR C CHECK, MAINTENANCE REPORTED BULK CARGO COMP. T-CHORD ON BULKHEAD FOR CARGO FLOOR STRUCTURE IS CORRODED AND CRACKED ON HORIZ. FLANGE AT STA 2160, RBL 2, 23, AND 29.  REPLACED UPPER CHORD PER SRM 51-30-02.

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