Aircraft cabin pressurization problem.

Attributes
ACN	275363
Time
Date	199406
Day	Sun
Local Time Of Day	0601 To 1200
Place
Locale Reference	atc facility : eyw
State Reference	FL
Altitude	msl bound lower : 8000 msl bound upper : 16000
Environment
Flight Conditions	VMC
Light	Daylight
Aircraft 1
Controlling Facilities	artcc : zma artcc : zma
Operator	common carrier : air carrier
Make Model Name	Commercial Fixed Wing
Operating Under FAR Part	Part 121
Navigation In Use	Other Other
Flight Phase	descent other
Route In Use	enroute airway : zma
Flight Plan	IFR
Person 1
Affiliation	company : air carrier
Function	flight crew : first officer
Qualification	pilot : cfi pilot : commercial pilot : instrument
Experience	flight time last 90 days : 155 flight time total : 1460 flight time type : 480
ASRS Report	275363
Person 2
Affiliation	company : air carrier
Function	flight crew : captain oversight : pic
Qualification	pilot : commercial pilot : cfi pilot : instrument pilot : atp
Experience	flight time last 90 days : 220 flight time total : 8000 flight time type : 3500
ASRS Report	275125
Events
Anomaly	aircraft equipment problem : critical
Independent Detector	other flight crewa
Resolutory Action	controller : issued new clearance flight crew : exited adverse environment
Consequence	Other
Supplementary
Primary Problem	Aircraft
Air Traffic Incident	other

Narrative:

Flight from mco-eyw at FL210. Given clearance by center to descend. At approximately 16000 ft I began to experience ear discomfort. I checked cabin pressure indicator -- cabin altitude was increasing at 1000 FPM. I notified captain. He attempted manual control no effect. I increased rate of descent to 3500 FPM. Cabin altitude. Reached ambient at approximately 10000 ft. Center was notified upon discovery of problem and gave lower altitude. Than first clearance. At approximately 8000 ft, slowed rate of descent to 500 FPM for passenger comfort. Remainder of flight to eyw normal. Postflt inspection normal except for 2 ft section of baggage compartment door seal loose due to bent retainer.

Original NASA ASRS Text

Title: ACFT CABIN PRESSURIZATION PROB.

Narrative: FLT FROM MCO-EYW AT FL210. GIVEN CLRNC BY CTR TO DSND. AT APPROX 16000 FT I BEGAN TO EXPERIENCE EAR DISCOMFORT. I CHKED CABIN PRESSURE INDICATOR -- CABIN ALT WAS INCREASING AT 1000 FPM. I NOTIFIED CAPT. HE ATTEMPTED MANUAL CTL NO EFFECT. I INCREASED RATE OF DSCNT TO 3500 FPM. CABIN ALT. REACHED AMBIENT AT APPROX 10000 FT. CTR WAS NOTIFIED UPON DISCOVERY OF PROB AND GAVE LOWER ALT. THAN FIRST CLRNC. AT APPROX 8000 FT, SLOWED RATE OF DSCNT TO 500 FPM FOR PAX COMFORT. REMAINDER OF FLT TO EYW NORMAL. POSTFLT INSPECTION NORMAL EXCEPT FOR 2 FT SECTION OF BAGGAGE COMPARTMENT DOOR SEAL LOOSE DUE TO BENT RETAINER.

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.