Flight crew of medium large transport declared an emergency and return to land due to a main hydraulic system failure during initial climb caused by a blown tire during takeoff.

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Attributes
ACN	270450
Time
Date	199405
Day	Tue
Local Time Of Day	1201 To 1800
Place
Locale Reference	airport : cvg
State Reference	OH
Altitude	agl bound lower : 400 agl bound upper : 1200
Environment
Flight Conditions	VMC
Light	Daylight
Aircraft 1
Controlling Facilities	tower : cvg tracon : msy
Operator	common carrier : air carrier
Make Model Name	Fokker 100
Operating Under FAR Part	Part 121
Flight Phase	climbout : takeoff landing other
Flight Plan	IFR
Person 1
Affiliation	company : air carrier
Function	flight crew : captain oversight : pic
Qualification	pilot : flight engineer pilot : atp
Experience	flight time last 90 days : 45 flight time total : 99091 flight time type : 1132
ASRS Report	270450
Person 2
Affiliation	company : air carrier
Function	flight crew : first officer
Qualification	pilot : instrument pilot : commercial
Events
Anomaly	aircraft equipment problem : critical other anomaly other
Independent Detector	aircraft equipment other aircraft equipment : unspecified other flight crewa
Resolutory Action	flight crew : declared emergency other
Consequence	Other
Supplementary
Primary Problem	Aircraft

Narrative:

Upon raising the gear handle after takeoff, master caution and hydraulic annunciator light illuminated. Checked hydraulic quantity and noticed system a quantity at 0. Landing gear did not retract. Aircraft taxiing off behind us reported rubber on the runway. Performed pilot operating manual abnormal for system a hydraulic loss, declared an emergency, and returned to cvg for landing. After landing, it was discovered that the left inboard main tire had blown.

Original NASA ASRS Text

Title: FLC OF MLG DECLARED AN EMER AND RETURN TO LAND DUE TO A MAIN HYD SYS FAILURE DURING INITIAL CLB CAUSED BY A BLOWN TIRE DURING TKOF.

Narrative: UPON RAISING THE GEAR HANDLE AFTER TKOF, MASTER CAUTION AND HYD ANNUNCIATOR LIGHT ILLUMINATED. CHKED HYD QUANTITY AND NOTICED SYS A QUANTITY AT 0. LNDG GEAR DID NOT RETRACT. ACFT TAXIING OFF BEHIND US RPTED RUBBER ON THE RWY. PERFORMED PLT OPERATING MANUAL ABNORMAL FOR SYS A HYD LOSS, DECLARED AN EMER, AND RETURNED TO CVG FOR LNDG. AFTER LNDG, IT WAS DISCOVERED THAT THE L INBOARD MAIN TIRE HAD BLOWN.

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.