# SDR UIEA2026030200075

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: April 10, 2026
- Submitted: April 13, 2026
- Operation: Air carrier
- Aircraft: [N407KZ](https://openairdocs.org/aircraft/N407KZ), registered now
- Make and model: Boeing 747-4KZF
- Registry model: [Boeing 747-4KZF](https://openairdocs.org/model/boeing-747-4kzf) (OpenAirDocs)
- Aircraft serial: 36134
- Aircraft time: 62,218 hours, 11,728 cycles
- System (JASC): [5410 · Nacelle/Pylon, Main Frame](https://openairdocs.org/jasc/5410)
- Part: Nose Cowl
- Condition: Corroded
- Location: Zone 400
- 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/UIEA2026030200075

## Discrepancy

SURFACE CORROSION ON NOSE COWL LIP OF NR 3 ENG.  REMOVED CORROSION ON NOSE COWL LIP OF NR 3 ENG PER SRM 51-00-06-0 REV 105 &  SRM 54-11-01-1A-ADL DETAIL III FIG 101 REV 105. FOUND WITHIN LIMITS.

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