Aircraft equipment problem malfunction creates multiple situation for flight crew. Takeoff aborted. Takeoff delayed. Altitude deviation altitude excursion. Emergency declared. Return land.

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Attributes
ACN	239600
Time
Date	199304
Day	Wed
Local Time Of Day	1201 To 1800
Place
Locale Reference	airport : dtw
State Reference	MI
Altitude	agl bound lower : 0 agl bound upper : 100
Environment
Flight Conditions	VMC
Light	Daylight
Aircraft 1
Controlling Facilities	tracon : dtw tower : dtw
Operator	common carrier : air carrier
Make Model Name	Large Transport, Low Wing, 2 Turbojet Eng
Navigation In Use	Other Other
Flight Phase	climbout : initial climbout : takeoff other
Flight Plan	IFR
Person 1
Affiliation	company : air carrier
Function	flight crew : first officer
Qualification	pilot : instrument pilot : commercial pilot : cfi
Experience	flight time last 90 days : 210 flight time total : 12000 flight time type : 3000
ASRS Report	239600
Person 2
Affiliation	company : air carrier
Function	flight crew : captain oversight : pic
Qualification	pilot : atp
Events
Anomaly	aircraft equipment problem : less severe altitude deviation : excursion from assigned altitude non adherence : clearance
Independent Detector	other flight crewa
Resolutory Action	flight crew : declared emergency other
Consequence	Other
Supplementary
Primary Problem	Aircraft
Air Traffic Incident	other

Narrative:

Captain's leg. Taxied out for takeoff, all system normal. First takeoff attempt. At takeoff power (50 KTS) had a 'RAT' hydraulic pump fault indication. Aborted. Fault went away, taxied to a holding area. Conferred with maintenance control and agreed no problem to takeoff again. Next takeoff attempt normal. Tried raising gear but handle was 'locked' in down position. Shortly after got a 'landing gear shock absorber fault.' after conferring with maintenance control and dispatch, returned to dtw, declared emergency, made over weight landing. While holding and working on problem, assigned 4000 ft by ATC due to turbulence, loss of flight director, autoplt, automatic throttles, altitude varied plus or minus 400 ft. Found out aircraft had a history of same problems twice in last 30 days.

Original NASA ASRS Text

Title: ACFT EQUIP PROB MALFUNCTION CREATES MULTIPLE SIT FOR FLC. TKOF ABORTED. TKOF DELAYED. ALTDEV ALT EXCURSION. EMER DECLARED. RETURN LAND.

Narrative: CAPT'S LEG. TAXIED OUT FOR TKOF, ALL SYS NORMAL. FIRST TKOF ATTEMPT. AT TKOF PWR (50 KTS) HAD A 'RAT' HYD PUMP FAULT INDICATION. ABORTED. FAULT WENT AWAY, TAXIED TO A HOLDING AREA. CONFERRED WITH MAINT CTL AND AGREED NO PROB TO TKOF AGAIN. NEXT TKOF ATTEMPT NORMAL. TRIED RAISING GEAR BUT HANDLE WAS 'LOCKED' IN DOWN POS. SHORTLY AFTER GOT A 'LNDG GEAR SHOCK ABSORBER FAULT.' AFTER CONFERRING WITH MAINT CTL AND DISPATCH, RETURNED TO DTW, DECLARED EMER, MADE OVER WT LNDG. WHILE HOLDING AND WORKING ON PROB, ASSIGNED 4000 FT BY ATC DUE TO TURB, LOSS OF FLT DIRECTOR, AUTOPLT, AUTO THROTTLES, ALT VARIED PLUS OR MINUS 400 FT. FOUND OUT ACFT HAD A HISTORY OF SAME PROBS TWICE IN LAST 30 DAYS.

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.