SDR MTN2008F00002

Service difficulty report · Pump · Aerosp ATR42320

Difficulty date: July 3, 2008
Submitted: July 23, 2008
Operation: Air carrier
Aircraft: N907FX
Make and model: Aerosp ATR42320
Aircraft serial: 286
Engine: Pwa PW121
System (JASC): 2913 · Hydraulic Pump (Electric/Engine), Main
Part: Pump
Part number: 4019501
Condition: Inoperative
Location: Hyd System
Stage of operation: CL
How discovered: O
Nature of condition: J
Precautionary procedure: A

As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.

What was found

AFTER DEPARTURE, THE BLUE HYDR SYS PRESSURE WENT TO -0-PSI. THE FLAPS WOULD NOT RETRACT, AFTER COMPLETING THE APPROPRIATE CHECKLIST, THE CREW DECIDED TO RETURN TO DEPARTURE. AFTER TROUBLESHOOTING THE MECHANIC FOUND A BAD HYDR PUMP. (K)

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