# SDR UIEA2026022500068

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: February 28, 2026
- Submitted: March 2, 2026
- Operation: Air carrier
- Aircraft: [N405KZ](https://openairdocs.org/aircraft/N405KZ), registered now
- Make and model: Boeing 747-4KZF
- Registry model: [Boeing 747-4KZF](https://openairdocs.org/model/boeing-747-4kzf) (OpenAirDocs)
- Aircraft serial: 36132
- Aircraft time: 64,686 hours, 11,844 cycles
- System (JASC): [2120 · Air Distribution System](https://openairdocs.org/jasc/2120)
- Part: Duct
- Part number: 214U61248
- Condition: Damaged
- Location: Zone 600
- 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/UIEA2026022500068

## Discrepancy

R/H W/W PACK #3 DUCT ASSEMBLY DAMAGE. IT WAS FOUND HANGING IN THE R/H WING GEAR WHEEL WELL. IT HAD SEPARATED/FAILED AT THE CONTROL VALVE AT THE TOP OF THE WHEEL WELL. R & R DUCT ASSY PER AMM 21-21-01. LK CHK OK.

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