# SDR UIEA2026020500031

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: February 5, 2026
- Submitted: February 5, 2026
- Operation: Air carrier
- Aircraft: [N481MC](https://openairdocs.org/aircraft/N481MC), registered now
- Make and model: Boeing 747443
- Aircraft serial: 32339
- Aircraft time: 91,419 hours, 11,972 cycles
- System (JASC): [5512 · Horizontal Stabilizer, Plate/Skin](https://openairdocs.org/jasc/5512)
- Part: Skin
- 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/UIEA2026020500031

## Discrepancy

PERFORM EO 4455A061 PART 2 ZONE B INSPECTION. FOUND FREEZE PLUG INSTALLED AT RH HORIZONTAL STAB UPPER SKIN UPPER REAR SPAR CHORD LG OTBD #15.   ACCOMPLISHED EI T2026A55M-086 REV 0.  JOB COMPLETED AND CONDITION CHECK NORMAL.</P>)

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