# SDR UIEA2025121301343

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: December 13, 2025
- Submitted: December 17, 2025
- Operation: Air carrier
- Aircraft: [N780BA](https://openairdocs.org/aircraft/N780BA), registered now
- Make and model: Boeing 747409
- Aircraft serial: 24310
- Aircraft time: 92,007 hours, 17,241 cycles
- System (JASC): [5400 · Nacelle/Pylon Structure](https://openairdocs.org/jasc/5400)
- Part: Structure
- Condition: No Discrepancy
- Location: Nr 1 Nacelle
- Stage of operation: TX
- How discovered: O
- Nature of condition: W
- Precautionary procedure: O
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/UIEA2025121301343

## Discrepancy

NR 1 ENG STRUCK GSE ON TOW IN.  MX IN WORK WHILE IN AOGD FOR NR 1 ENG COWL DAMAGE.  CONDITIONAL INSPECTIONS C/W PER AMM 05-51-06-212 REV 115, NO DEFECTS NOTED. R & R ENG 1 LH FAN COWL ASSY PER AMM 71-11-04-014 REV 115 & IPC 71-11-04-01 FIG 1 ITEM 60 REV 33. LEAK & HEAT TEST PASSED, NO FAULTS NOTED.

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