# SDR IPXA2025081811257

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: August 16, 2025
- Submitted: August 18, 2025
- Operation: Air carrier
- Aircraft: [N580UP](https://openairdocs.org/aircraft/N580UP), registered now
- Make and model: Boeing 747428F
- Aircraft serial: 25632
- Aircraft time: 120,913 hours, 20,713 cycles
- System (JASC): [2750 · Trailing Edge Flap Control System](https://openairdocs.org/jasc/2750)
- Part: Rvdt
- Part number: 900040822
- Condition: Warning Message
- Location: Zone 200
- Stage of operation: TX
- How discovered: O
- Nature of condition: O
- Precautionary procedure: D
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/IPXA2025081811257

## Discrepancy

DURING AFTER START FLOW PRIOR TO TAXI WITH FLAP LEVER SELECTED TO 10, EICAS DISPLAYED YELLOW €˜X€™ OVER RIGHT INBOARD/OUTBOARD FLAP POS INDICATOR. FLAP POS INDICATOR. LEFT FLAPS INDICATED CORRECTLY REMOVED & REPLACED RIGHT OUTBOARD RVDT TRANSMITTER EQUIP# M7893 REF AMM 27-58-01 OPS CHECK GOOD, A/C OK FOR SERVICE

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