<< >> NASA ASRS Report 406147, June 1998

On takeoff onboard MD80S, unable to pressurize cabin, flight crew declared emergency and return to land without incident.

Attributes
ACN	406147
Time
Date	199806
Day	Tue
Local Time Of Day	0601 To 1200
Place
Locale Reference	airport : dfw
State Reference	TX
Environment
Flight Conditions	VMC
Light	Daylight
Aircraft 1
Controlling Facilities	tracon : dfw tower : dfw
Operator	common carrier : air carrier
Make Model Name	MD-80 Super 80
Operating Under FAR Part	Part 121
Navigation In Use	Other
Flight Phase	climbout : intermediate altitude climbout : takeoff landing other
Flight Plan	IFR
Person 1
Affiliation	company : air carrier
Function	flight attendant : on duty
Qualification	other other : other
ASRS Report	406147
Person 2
Affiliation	company : air carrier
Function	flight crew : captain oversight : pic
Qualification	pilot : atp
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 none taken : unable other
Consequence	Other
Supplementary
Primary Problem	Aircraft

Narrative:

During takeoff my ears and the #3's ears began to pop drastically. Then the cabin leveled off and we began in-flight service. We looked out the window and noticed low altitude. #3 went to cockpit and was informed that our pressurization was not properly working and that we were only at 8000 ft and would soon have to return to dfw to land. He told us to put all service items away and that we would be landing in about 30 mins. He said that emergency crews would be meeting us upon our landing, due to the weight/fuel of the aircraft. Once again #3 and I experienced very crackly ears, popping constantly. Landed very smooth. Emergency crews not needed, no incident, flight service met aircraft. Note passenger did mention their ears popping excessively on takeoff and landing, also.

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Original NASA ASRS Text

Title: ON TKOF ONBOARD MD80S, UNABLE TO PRESSURIZE CABIN, FLC DECLARED EMER AND RETURN TO LAND WITHOUT INCIDENT.

Narrative: DURING TKOF MY EARS AND THE #3'S EARS BEGAN TO POP DRASTICALLY. THEN THE CABIN LEVELED OFF AND WE BEGAN INFLT SVC. WE LOOKED OUT THE WINDOW AND NOTICED LOW ALT. #3 WENT TO COCKPIT AND WAS INFORMED THAT OUR PRESSURIZATION WAS NOT PROPERLY WORKING AND THAT WE WERE ONLY AT 8000 FT AND WOULD SOON HAVE TO RETURN TO DFW TO LAND. HE TOLD US TO PUT ALL SVC ITEMS AWAY AND THAT WE WOULD BE LNDG IN ABOUT 30 MINS. HE SAID THAT EMER CREWS WOULD BE MEETING US UPON OUR LNDG, DUE TO THE WT/FUEL OF THE ACFT. ONCE AGAIN #3 AND I EXPERIENCED VERY CRACKLY EARS, POPPING CONSTANTLY. LANDED VERY SMOOTH. EMER CREWS NOT NEEDED, NO INCIDENT, FLT SVC MET ACFT. NOTE PAX DID MENTION THEIR EARS POPPING EXCESSIVELY ON TKOF AND LNDG, ALSO.

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.