Altitude deviation, crossing restr not met.

Attributes
ACN	317369
Time
Date	199509
Day	Wed
Local Time Of Day	1201 To 1800
Place
Locale Reference	atc facility : fim
State Reference	CA
Altitude	msl bound lower : 12000 msl bound upper : 14000
Environment
Flight Conditions	VMC
Light	Daylight
Aircraft 1
Controlling Facilities	artcc : lax tracon : stl
Operator	common carrier : air carrier
Make Model Name	B737-300
Operating Under FAR Part	Part 121
Navigation In Use	Other Other
Flight Phase	descent other
Route In Use	arrival other arrival star : star enroute airway : lax
Flight Plan	IFR
Person 1
Affiliation	company : air carrier
Function	flight crew : first officer
Qualification	pilot : atp pilot : commercial pilot : instrument
Experience	flight time last 90 days : 240 flight time total : 6600 flight time type : 2000
ASRS Report	317369
Person 2
Affiliation	company : air carrier
Function	flight crew : captain oversight : pic
Qualification	pilot : instrument pilot : flight engineer pilot : atp pilot : commercial
Experience	flight time last 90 days : 232 flight time total : 11000 flight time type : 4950
ASRS Report	316479
Events
Anomaly	altitude deviation : crossing restriction not met altitude deviation : undershoot non adherence : clearance
Independent Detector	other flight crewa
Resolutory Action	flight crew : returned to intended course or assigned course none taken : insufficient time
Consequence	Other
Supplementary
Primary Problem	Flight Crew Human Performance
Air Traffic Incident	Pilot Deviation

Narrative:

Descent to cross symon intersection at 12000 ft initiated too late to comply with restr. While trying to determine why we did not comply with restr, I initiated the left turn to smo late. No traffic conflicts occurred and ATC did not advise of or mention any problems.

Original NASA ASRS Text

Title: ALTDEV, XING RESTR NOT MET.

Narrative: DSCNT TO CROSS SYMON INTXN AT 12000 FT INITIATED TOO LATE TO COMPLY WITH RESTR. WHILE TRYING TO DETERMINE WHY WE DID NOT COMPLY WITH RESTR, I INITIATED THE L TURN TO SMO LATE. NO TFC CONFLICTS OCCURRED AND ATC DID NOT ADVISE OF OR MENTION ANY PROBS.

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.