MD83 pilot return land over maximum gross weight at jfk.

Attributes
ACN	403357
Time
Date	199805
Day	Wed
Local Time Of Day	0601 To 1200
Place
Locale Reference	airport : jfk
State Reference	NY
Altitude	msl bound lower : 2000 msl bound upper : 2000
Environment
Flight Conditions	VMC
Light	Daylight
Aircraft 1
Controlling Facilities	tracon : jfk artcc : zob
Operator	common carrier : air carrier
Make Model Name	MD-83
Operating Under FAR Part	Part 121
Navigation In Use	Other
Flight Phase	climbout : initial
Route In Use	departure other
Flight Plan	IFR
Person 1
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 : 210 flight time total : 19000 flight time type : 4800
ASRS Report	403357
Person 2
Affiliation	company : air carrier
Function	flight crew : first officer
Qualification	pilot : commercial pilot : instrument
Events
Anomaly	aircraft equipment problem : critical other anomaly other
Independent Detector	other flight crewa
Resolutory Action	other
Consequence	Other
Supplementary
Primary Problem	Aircraft
Air Traffic Incident	other

Narrative:

Dispatched from jfk to pbi with left air conditioning pack inoperative. After takeoff at jfk, the right air conditioning pack failed, resulting in unpressurized flight. Unable to restart right air conditioning pack. Returned to jfk and landed overweight. Considered it safe to land overweight. With a full complement of passenger, the cabin was very hot, and ventilation was not adequate to remain airborne for any appreciable length of time.

Original NASA ASRS Text

Title: MD83 PLT RETURN LAND OVER MAX GROSS WT AT JFK.

Narrative: DISPATCHED FROM JFK TO PBI WITH L AIR CONDITIONING PACK INOP. AFTER TKOF AT JFK, THE R AIR CONDITIONING PACK FAILED, RESULTING IN UNPRESSURIZED FLT. UNABLE TO RESTART R AIR CONDITIONING PACK. RETURNED TO JFK AND LANDED OVERWT. CONSIDERED IT SAFE TO LAND OVERWT. WITH A FULL COMPLEMENT OF PAX, THE CABIN WAS VERY HOT, AND VENTILATION WAS NOT ADEQUATE TO REMAIN AIRBORNE FOR ANY APPRECIABLE LENGTH OF TIME.

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.