Advanced medium large transport had flight computer fail warning, at lower altitude and slower speed had double stabilizer flr indication. Later jammed stabilizer trim flr, and later both stabilizer hydraulic channels failed. Flight crew was able to make descent, approach, landing without further incident.

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Attributes
ACN	162444
Time
Date	199011
Day	Sun
Local Time Of Day	1201 To 1800
Place
Locale Reference	airport : atl
State Reference	GA
Altitude	agl bound lower : 0 agl bound upper : 25000
Environment
Flight Conditions	VMC
Light	Dusk
Aircraft 1
Controlling Facilities	artcc : ztl tower : atl tower : btv
Operator	common carrier : air carrier
Make Model Name	Medium Large Transport, Low Wing, 2 Turbojet Eng
Navigation In Use	Other Other
Flight Phase	cruise other descent other landing other
Flight Plan	IFR
Person 1
Affiliation	company : air carrier
Function	flight crew : first officer
Qualification	pilot : instrument pilot : flight engineer pilot : atp pilot : commercial
Experience	flight time last 90 days : 240 flight time total : 4500 flight time type : 200
ASRS Report	162444
Person 2
Affiliation	company : air carrier
Function	flight crew : captain oversight : pic
Qualification	pilot : atp pilot : flight engineer pilot : commercial pilot : instrument
Experience	flight time last 90 days : 220 flight time total : 17000 flight time type : 90
ASRS Report	162445
Events
Anomaly	aircraft equipment problem : less severe
Independent Detector	other flight crewa
Resolutory Action	other
Consequence	Other
Supplementary
Primary Problem	Aircraft
Air Traffic Incident	other

Narrative:

Phl-atl experienced the following malfunctions, in chronological order. At 31000' flight warning computer fail message came on (two aboard aircraft). At 25000' while slowing to 250 KTS we had a double stabilizer trim failure. A few mins later a jammed stabilizer message came on screen. Later both stabilizer hydraulic channels failed. Flight was handled in accordance with far's and company procedures. An emergency was declared and an uneventful landing was made in atl.

Original NASA ASRS Text

Title: ADVANCED MLG HAD FLT COMPUTER FAIL WARNING, AT LOWER ALT AND SLOWER SPEED HAD DOUBLE STAB FLR INDICATION. LATER JAMMED STAB TRIM FLR, AND LATER BOTH STAB HYD CHANNELS FAILED. FLT CREW WAS ABLE TO MAKE DSNT, APCH, LNDG WITHOUT FURTHER INCIDENT.

Narrative: PHL-ATL EXPERIENCED THE FOLLOWING MALFUNCTIONS, IN CHRONOLOGICAL ORDER. AT 31000' FLT WARNING COMPUTER FAIL MESSAGE CAME ON (TWO ABOARD ACFT). AT 25000' WHILE SLOWING TO 250 KTS WE HAD A DOUBLE STAB TRIM FAILURE. A FEW MINS LATER A JAMMED STABILIZER MESSAGE CAME ON SCREEN. LATER BOTH STAB HYD CHANNELS FAILED. FLT WAS HANDLED IN ACCORDANCE WITH FAR'S AND COMPANY PROCS. AN EMER WAS DECLARED AND AN UNEVENTFUL LNDG WAS MADE IN ATL.

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.