# SDR UPS405549

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: February 7, 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): [5311 · Fuselage Main, Frame](https://openairdocs.org/jasc/5311)
- Part: Frame
- Condition: Corroded
- Location: Bs 1840
- 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/UPS405549

## Discrepancy

WHILE IN AMS FOR C-CHECK, FOUND CRACK IN FRAME UPPER CHORD BS 1840 RT BL 32 NEAR EXISTING SPLICE.  REMOVED DAMAGE UPPER CHORD AND REPAIRED CHORD ACC TO KLM DFX 96-035, ISSUE NR 4, APPROVED PER UPS EFN 747-53-0751.

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