Narrative:

After 45 mins in cruise flight, right hydraulic pressure low light flickered on and off. First officer noted hydraulic quantity had decreased to 5 quarts and turned right hydraulic pump off. Quantity remained at 5 quarts. Followed hydraulic fluid loss checklist and right hydraulic system failure checklist. Proceeded to destination, stl. Utilized manual gear extension procedure via checklist. After landing, maintenance secured landing gear doors and towed aircraft to gate. I had emergency equipment standing by but did not declare an emergency. After tow-in to the gate, maintenance noted hydraulic fluid leaking from tail cone area. Cooperation by flight dispatch, mci and stl maintenance, ATC, flight attendants and first officer was excellent! After flight dispatch had coordinated with stl tower to have emergency equipment standing by, as a precautionary measure, and that we did not have an emergency, I had to spend an inordinate amount of time with ATC denying I had an emergency. I was first contacted by ZMP with them stating they understood I had an emergency (relayed by mkc) and that they were going to close stl airport for our arrival. After again contacting flight dispatch I was informed washington had got involved and that they were the ones that wanted stl to close the airport. It was finally resolved and the stl airport was not closed for our arrival. Landing was normal and aircraft was towed to gate in approximately 10-15 mins.

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Original NASA ASRS Text

Title: MLG HAS R HYD PRESSURE LOW LIGHT ACTIVATE. CONTINUED TO DEST.

Narrative: AFTER 45 MINS IN CRUISE FLT, R HYD PRESSURE LOW LIGHT FLICKERED ON AND OFF. FO NOTED HYD QUANTITY HAD DECREASED TO 5 QUARTS AND TURNED R HYD PUMP OFF. QUANTITY REMAINED AT 5 QUARTS. FOLLOWED HYD FLUID LOSS CHKLIST AND R HYD SYS FAILURE CHKLIST. PROCEEDED TO DEST, STL. UTILIZED MANUAL GEAR EXTENSION PROC VIA CHKLIST. AFTER LNDG, MAINT SECURED LNDG GEAR DOORS AND TOWED ACFT TO GATE. I HAD EMER EQUIP STANDING BY BUT DID NOT DECLARE AN EMER. AFTER TOW-IN TO THE GATE, MAINT NOTED HYD FLUID LEAKING FROM TAIL CONE AREA. COOPERATION BY FLT DISPATCH, MCI AND STL MAINT, ATC, FLT ATTENDANTS AND FO WAS EXCELLENT! AFTER FLT DISPATCH HAD COORDINATED WITH STL TWR TO HAVE EMER EQUIP STANDING BY, AS A PRECAUTIONARY MEASURE, AND THAT WE DID NOT HAVE AN EMER, I HAD TO SPEND AN INORDINATE AMOUNT OF TIME WITH ATC DENYING I HAD AN EMER. I WAS FIRST CONTACTED BY ZMP WITH THEM STATING THEY UNDERSTOOD I HAD AN EMER (RELAYED BY MKC) AND THAT THEY WERE GOING TO CLOSE STL ARPT FOR OUR ARR. AFTER AGAIN CONTACTING FLT DISPATCH I WAS INFORMED WASHINGTON HAD GOT INVOLVED AND THAT THEY WERE THE ONES THAT WANTED STL TO CLOSE THE ARPT. IT WAS FINALLY RESOLVED AND THE STL ARPT WAS NOT CLOSED FOR OUR ARR. LNDG WAS NORMAL AND ACFT WAS TOWED TO GATE IN APPROX 10-15 MINS.

Data retrieved from NASA's ASRS site as of July 2007 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.