<< >> NASA ASRS Report 785607, May 2008

B757-200 lost hydraulic fluid in center hydraulic system during descent. Emergency was declared; and landing accomplished at destination airport.

Attributes
ACN	785607
Time
Date	200805
Local Time Of Day	1201 To 1800
Place
Locale Reference	atc facility : zzz.artcc
State Reference	US
Altitude	msl single value : 38000
Environment
Light	Night
Aircraft 1
Controlling Facilities	artcc : zzz.artcc
Operator	common carrier : air carrier
Make Model Name	B757-200
Operating Under FAR Part	Part 121
Flight Phase	descent : intermediate altitude
Flight Plan	IFR
Person 1
Affiliation	company : air carrier
Function	flight crew : captain oversight : pic
ASRS Report	785607
Events
Anomaly	aircraft equipment problem : less severe
Independent Detector	aircraft equipment other aircraft equipment : eicas other flight crewa
Resolutory Action	flight crew : landed in emergency condition flight crew : declared emergency
Supplementary
Problem Areas	Aircraft
Primary Problem	Aircraft

Narrative:

Cleared to FL240 by ZZZ center. Began descent. Shortly thereafter; EICAS displayed 'center hydraulic quantity.' checked status page; center quantity was 0.33. Looking on annunciator panel; 'reservoir' illuminated for center hydraulic system. First officer began QRH procedures. Declared emergency with center. Asked by ATC whether we needed any assistance. Said not at this time. Completed QRH procedures. Further on descent (below 10000 ft) tried extending speed brakes and received 'spoilers' EICAS and corresponding annunciator light. Further on approach; received 'right yaw damper' EICAS and corresponding annunciator light. Felt no degradation of handling of aircraft. Landed aircraft uneventfully. Only procedure I forgot to accomplish; was notifying #1 flight attendant of emergency -- tunnel locked on flying aircraft.

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Original NASA ASRS Text

Title: B757-200 LOST HYD FLUID IN CENTER HYD SYSTEM DURING DESCENT. EMER WAS DECLARED; AND LNDG ACCOMPLISHED AT DEST ARPT.

Narrative: CLRED TO FL240 BY ZZZ CTR. BEGAN DSCNT. SHORTLY THEREAFTER; EICAS DISPLAYED 'CTR HYD QUANTITY.' CHKED STATUS PAGE; CTR QUANTITY WAS 0.33. LOOKING ON ANNUNCIATOR PANEL; 'RESERVOIR' ILLUMINATED FOR CTR HYD SYS. FO BEGAN QRH PROCS. DECLARED EMER WITH CTR. ASKED BY ATC WHETHER WE NEEDED ANY ASSISTANCE. SAID NOT AT THIS TIME. COMPLETED QRH PROCS. FURTHER ON DSCNT (BELOW 10000 FT) TRIED EXTENDING SPD BRAKES AND RECEIVED 'SPOILERS' EICAS AND CORRESPONDING ANNUNCIATOR LIGHT. FURTHER ON APCH; RECEIVED 'R YAW DAMPER' EICAS AND CORRESPONDING ANNUNCIATOR LIGHT. FELT NO DEGRADATION OF HANDLING OF ACFT. LANDED ACFT UNEVENTFULLY. ONLY PROC I FORGOT TO ACCOMPLISH; WAS NOTIFYING #1 FLT ATTENDANT OF EMER -- TUNNEL LOCKED ON FLYING ACFT.

Data retrieved from NASA's ASRS site as of May 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.