Narrative:

This is an account of a green system hydraulic overheat that led to declaring an emergency for the landing at ZZZ1. The aircraft had at least 3 green system overheats in the log history. Contract maintenance had worked on the airplane overnight in ZZZ2. We did an engine run prior to boarding to see if the overheat returned on the ground after replacement of a temperature sensor. All checked good on the ground. Reaching FL350; we got the green system reservoir overheat ECAM and accomplished the ECAM; ptu off; green engine pump off procedure; then followed it up with the book. The captain got a phone patch with dispatch and maintenance to discuss the problem. Everyone concurred that continuing to ZZZ1 was appropriate. Dispatch indicated he would advise ZZZ1 ATC and declare an emergency and have equipment standing by for our arrival. After 20 mins the overheat message extinguished. We decided to leave the green system off until our arrival at ZZZ1 and planned to turn the green system on about 15 mi out to recover the system for landing. Upon checking in with approach control; we told them we would like to declare an emergency as a precaution in case the system overheated again before landing. They immediately issued holding instructions in case we closed the runway. Abeam runway 19L we turned the green pump on and the ptu on; extended the gear. We made an uneventful landing with normal hydraulics. After clearing the runway; the emergency crew wanted to do a visual inspection of the gear; after receiving the ok from the crash fire rescue equipment crew we taxied to the gate. A mechanic met us and the FAA met us at the gate. Verbal debrief with both parties.

Related reports:

Google
 

Original NASA ASRS Text

Title: AN A320 CREW REPORTS A REOCCURRING GREEN SYS HYD OVERHEAT ECAM. EMER WAS DECLARED. THE FLT CONTINUED TO ITS DESTINATION FOR NORMAL LANDING.

Narrative: THIS IS AN ACCOUNT OF A GREEN SYS HYD OVERHEAT THAT LED TO DECLARING AN EMER FOR THE LNDG AT ZZZ1. THE ACFT HAD AT LEAST 3 GREEN SYS OVERHEATS IN THE LOG HISTORY. CONTRACT MAINT HAD WORKED ON THE AIRPLANE OVERNIGHT IN ZZZ2. WE DID AN ENG RUN PRIOR TO BOARDING TO SEE IF THE OVERHEAT RETURNED ON THE GND AFTER REPLACEMENT OF A TEMP SENSOR. ALL CHKED GOOD ON THE GND. REACHING FL350; WE GOT THE GREEN SYS RESERVOIR OVERHEAT ECAM AND ACCOMPLISHED THE ECAM; PTU OFF; GREEN ENG PUMP OFF PROC; THEN FOLLOWED IT UP WITH THE BOOK. THE CAPT GOT A PHONE PATCH WITH DISPATCH AND MAINT TO DISCUSS THE PROB. EVERYONE CONCURRED THAT CONTINUING TO ZZZ1 WAS APPROPRIATE. DISPATCH INDICATED HE WOULD ADVISE ZZZ1 ATC AND DECLARE AN EMER AND HAVE EQUIP STANDING BY FOR OUR ARR. AFTER 20 MINS THE OVERHEAT MESSAGE EXTINGUISHED. WE DECIDED TO LEAVE THE GREEN SYS OFF UNTIL OUR ARR AT ZZZ1 AND PLANNED TO TURN THE GREEN SYS ON ABOUT 15 MI OUT TO RECOVER THE SYS FOR LNDG. UPON CHKING IN WITH APCH CTL; WE TOLD THEM WE WOULD LIKE TO DECLARE AN EMER AS A PRECAUTION IN CASE THE SYS OVERHEATED AGAIN BEFORE LNDG. THEY IMMEDIATELY ISSUED HOLDING INSTRUCTIONS IN CASE WE CLOSED THE RWY. ABEAM RWY 19L WE TURNED THE GREEN PUMP ON AND THE PTU ON; EXTENDED THE GEAR. WE MADE AN UNEVENTFUL LNDG WITH NORMAL HYDS. AFTER CLRING THE RWY; THE EMER CREW WANTED TO DO A VISUAL INSPECTION OF THE GEAR; AFTER RECEIVING THE OK FROM THE CFR CREW WE TAXIED TO THE GATE. A MECH MET US AND THE FAA MET US AT THE GATE. VERBAL DEBRIEF WITH BOTH PARTIES.

Data retrieved from NASA's ASRS site as of January 2009 and automatically converted to unabbreviated mixed upper/lowercase text. This report is for informational purposes with no guarantee of accuracy. See NASA's ASRS site for official report.