Flight crew turns earlier and at a lower altitude than procedure requires.

Attributes
ACN	295383
Time
Date	199502
Day	Fri
Local Time Of Day	1201 To 1800
Place
Locale Reference	airport : sea
State Reference	WA
Altitude	msl bound lower : 3000 msl bound upper : 4000
Environment
Flight Conditions	Mixed
Light	Daylight
Aircraft 1
Controlling Facilities	tracon : sea tower : ord
Operator	common carrier : air carrier
Make Model Name	Commercial Fixed Wing
Operating Under FAR Part	Part 121
Navigation In Use	Other Other
Flight Phase	climbout : initial climbout : takeoff ground : preflight
Route In Use	departure other departure sid : sid
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 : 18000 flight time type : 3000
ASRS Report	295393
Person 2
Affiliation	company : air carrier
Function	flight crew : first officer
Qualification	pilot : commercial pilot : instrument
Events
Anomaly	altitude deviation : undershoot altitude deviation : crossing restriction not met non adherence : clearance non adherence : published procedure other spatial deviation
Independent Detector	other controllera
Resolutory Action	none taken : detected after the fact
Consequence	Other
Supplementary
Primary Problem	Flight Crew Human Performance
Air Traffic Incident	Pilot Deviation

Narrative:

After last min runway change from runway 16 to runway 34, a FMS change was incorrectly entered in FMGC. In order to comply with the mountain 3 departure, FMS was originally programmed to cross sea 158/5 at 3000 ft or above and turn to 070 degrees. FMS was incorrectly reprogrammed to cross sea 338/5 at or above 3000 ft, then turn to 070 degrees. Should have been sea 338/8 at or above 4000 ft-- turn was incorrectly initiated at sea 338/5 and 3300 ft.

Original NASA ASRS Text

Title: FLC TURNS EARLIER AND AT A LOWER ALT THAN PROC REQUIRES.

Narrative: AFTER LAST MIN RWY CHANGE FROM RWY 16 TO RWY 34, A FMS CHANGE WAS INCORRECTLY ENTERED IN FMGC. IN ORDER TO COMPLY WITH THE MOUNTAIN 3 DEP, FMS WAS ORIGINALLY PROGRAMMED TO CROSS SEA 158/5 AT 3000 FT OR ABOVE AND TURN TO 070 DEGS. FMS WAS INCORRECTLY REPROGRAMMED TO CROSS SEA 338/5 AT OR ABOVE 3000 FT, THEN TURN TO 070 DEGS. SHOULD HAVE BEEN SEA 338/8 AT OR ABOVE 4000 FT-- TURN WAS INCORRECTLY INITIATED AT SEA 338/5 AND 3300 FT.

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.