# SDR UIEA200700309

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: July 27, 2007
- Submitted: August 24, 2007
- Operation: Air carrier
- Aircraft: N537MC
- Make and model: Boeing 747271C
- Aircraft serial: 22403
- Aircraft time: 97,429 hours, 19,113 cycles
- System (JASC): [5511 · Horizontal Stabilizer, Spar/Rib](https://openairdocs.org/jasc/5511)
- Part: Spar Cap
- Condition: Damaged
- Location: Zone 300
- Stage of operation: IN
- How discovered: V
- Nature of condition: O
- Precautionary procedure: K
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/UIEA200700309

## Discrepancy

HORIZONTAL STAB RT AFT CRACK INDICATION/HOLE DAMAGED AT RT HORIZ SPAR CAP RT SIDE OTBD OF 43.5 INBD FWD HOLE.  REAMED DAMAGED HOLE TO FIRST OVERSIZE (.450-.453) IAW SB 747-55A2050.  NDT FINDS NO DEFECTS.  BOLTS INSTALLED ON CARD 8010 / 8011.

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