# SDR FDEA201901250196

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: January 25, 2019
- Submitted: January 31, 2019
- Operation: Air carrier
- Aircraft: [N749FD](https://openairdocs.org/aircraft/N749FD), registered now
- Make and model: Airbus A300 B4-622R
- Registry model: [Airbus A300 B4-622R](https://openairdocs.org/model/airbus-a300-b4-622r) (OpenAirDocs)
- Aircraft serial: 536
- Aircraft time: 58,149 hours, 27,052 cycles
- System (JASC): [2932 · Hydraulic Pressure Sensor](https://openairdocs.org/jasc/2932)
- Part: Pressure Switch
- Part number: 1225P422
- Part serial: 1186
- Condition: Failed
- Location: Hydraulic Sys
- Stage of operation: CL
- How discovered: O
- Nature of condition: N
- Precautionary procedure: A
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/FDEA201901250196

## Discrepancy

FOLLOWING T/O KMEM ECAM: (GREEN SYS LO PR) CONFERRED WITH DISPATCH / MAINT DECISION TO RETURN KMEM. FOLLOWED ECAM AND QRH PROCEDURES. GREEN HYD LVL IN GREEN BAND/PRESS ON ECAM 3100 PSI. CAPT CONFIRMED L/G WAS MANUALLY EXTENDED PER QRH. RESTORED LANDING GEAR TO NORMAL OPERATION AFTER FREE FALL REF AMM 32-33-00-02. REMOVED FWC 1 AND FWC 2, PRESSURIZED GREEN HYD SYS REF ASM 29-32-00 SCHEM 01, HAD 800 K OHMS CONTINUITY TO GND AT PIN 4 J OF FWC 1 AE RACK CONNECTOR. REMOVED 30WW-A CONNECTOR AND IT SHOWED OPEN. REPLACED 30WW REF AMM 29-11-12-04. PERFORMED SAME TEST AFTER 30WW WAS REPLACED. IT SHOWED OPEN WITH CONNECTOR INSTALLED AND GREEN SYS PRESSURE ON. REMOVED GREEN SYS PRESSURE AND IT SHOWED CONTINUITY TO GND. INSTALLED FWC 1 AND FWC 2 BACK REF AMM 31-53-34-04. ALL TEST PASSED. NO LEAKS NOTED.

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