# SDR UIEA2025022200159

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: February 22, 2025
- Submitted: February 27, 2025
- Operation: Air carrier
- Aircraft: [N446MC](https://openairdocs.org/aircraft/N446MC), registered now
- Make and model: Boeing 747-4B5F
- Registry model: [Boeing 747-4B5F](https://openairdocs.org/model/boeing-747-4b5f) (OpenAirDocs)
- Aircraft serial: 33517
- Aircraft time: 86,712 hours, 14,862 cycles
- System (JASC): [2910 · Hydraulic System, Main](https://openairdocs.org/jasc/2910)
- Part: Hydraulic Line
- Condition: Leaking
- Location: Nr 1
- Stage of operation: CR
- How discovered: O
- Nature of condition: K, J
- Precautionary procedure: O
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/UIEA2025022200159

## Discrepancy

HYD QTY LOW 1 FOLLOWED BY HYD PRESS SYSTEM 1(<P>FOUND #1 HYD RESERVIOR RETURN LINE LEAKING AND RETURN LINE REPLACED WITH TEMPORARY FLEXIBLE LINE AND CHECKED NORMAL PER AMM 20-11-18-300-801 & GMM 3.24.1. REINSPECT EVERY 25 FLIGHT CYCLES PER GMM 3.24.1. TRANSFERED TO NON-MEL DMI 226333 DUE DATE 06MAR25.</P>)

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