Commuter flight crew deviation. Altitude deviation altitude undershot in climb. Aircraft equipment problem. Rate of climb affected. Passenger comfort.

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Attributes
ACN	312909
Time
Date	199508
Day	Wed
Local Time Of Day	1201 To 1800
Place
Locale Reference	airport : mco
State Reference	FL
Altitude	msl bound lower : 1500 msl bound upper : 2600
Environment
Flight Conditions	VMC
Light	Daylight
Aircraft 1
Controlling Facilities	tracon : mco
Operator	common carrier : air carrier
Make Model Name	Commercial Fixed Wing
Operating Under FAR Part	Part 135
Flight Phase	climbout : initial climbout : takeoff
Route In Use	enroute other
Flight Plan	IFR
Person 1
Affiliation	company : air carrier
Function	flight crew : captain oversight : pic
Qualification	pilot : atp
Experience	flight time last 90 days : 200 flight time total : 4900 flight time type : 3000
ASRS Report	312909
Person 2
Affiliation	company : air carrier
Function	flight crew : first officer
Qualification	pilot : atp
Events
Anomaly	aircraft equipment problem : less severe altitude deviation : undershoot non adherence : clearance non adherence : published procedure non adherence other other anomaly other
Independent Detector	other controllera
Resolutory Action	controller : issued new clearance other other
Consequence	faa : reviewed incident with flight crew
Supplementary
Primary Problem	Flight Crew Human Performance
Air Traffic Incident	Pilot Deviation

Narrative:

Had picked up airplane with pressurization MEL'ed. Was concerned about passenger comfort. First officer was flying this leg. We discussed situation before departure and decided to climb slowly, approximately 500-700 FPM to minimize passenger discomfort. We neglected to review SID which specified a crossing restr of 2000 ft north of airport. Also, we should have told departure what we intended to do, but did not. We departed in the slow climb and when handed over to departure center she asked if we were going to make crossing restr. We responded that we were having pressurization problems. She was perturbed that we hadn't informed her, that we still had to make the restr. She then lectured us and vectored us away from the fix, presumably without further incident. Reasons for procedure deviation (we were at about 1500 ft when we should have been at 2000 ft). Being we had been doing this run for yrs we were lulled into thinking we know it by heart. We neglected to review it before departing as is procedure. A simple review and call to ATC while taxiing out would have solved the problem easily.

Original NASA ASRS Text

Title: COMMUTER FLC DEV. ALTDEV ALT UNDERSHOT IN CLB. ACFT EQUIP PROB. RATE OF CLB AFFECTED. PAX COMFORT.

Narrative: HAD PICKED UP AIRPLANE WITH PRESSURIZATION MEL'ED. WAS CONCERNED ABOUT PAX COMFORT. FO WAS FLYING THIS LEG. WE DISCUSSED SIT BEFORE DEP AND DECIDED TO CLB SLOWLY, APPROX 500-700 FPM TO MINIMIZE PAX DISCOMFORT. WE NEGLECTED TO REVIEW SID WHICH SPECIFIED A XING RESTR OF 2000 FT N OF ARPT. ALSO, WE SHOULD HAVE TOLD DEP WHAT WE INTENDED TO DO, BUT DID NOT. WE DEPARTED IN THE SLOW CLB AND WHEN HANDED OVER TO DEP CTR SHE ASKED IF WE WERE GOING TO MAKE XING RESTR. WE RESPONDED THAT WE WERE HAVING PRESSURIZATION PROBS. SHE WAS PERTURBED THAT WE HADN'T INFORMED HER, THAT WE STILL HAD TO MAKE THE RESTR. SHE THEN LECTURED US AND VECTORED US AWAY FROM THE FIX, PRESUMABLY WITHOUT FURTHER INCIDENT. REASONS FOR PROC DEV (WE WERE AT ABOUT 1500 FT WHEN WE SHOULD HAVE BEEN AT 2000 FT). BEING WE HAD BEEN DOING THIS RUN FOR YRS WE WERE LULLED INTO THINKING WE KNOW IT BY HEART. WE NEGLECTED TO REVIEW IT BEFORE DEPARTING AS IS PROC. A SIMPLE REVIEW AND CALL TO ATC WHILE TAXIING OUT WOULD HAVE SOLVED THE PROB EASILY.

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.