B737-700 flight crew has an altitude deviation during the pomona seven departure.

Attributes
ACN	726710
Time
Date	200702
Local Time Of Day	1201 To 1800
Place
Locale Reference	airport : ont.airport
State Reference	CA
Altitude	msl single value : 7000
Environment
Flight Conditions	VMC
Light	Daylight
Aircraft 1
Controlling Facilities	tracon : sct.tracon
Operator	common carrier : air carrier
Make Model Name	B737-700
Operating Under FAR Part	Part 121
Navigation In Use	other vortac
Flight Phase	climbout : intermediate altitude
Route In Use	departure sid : pom 7
Flight Plan	IFR
Person 1
Affiliation	company : air carrier
Function	flight crew : first officer
Experience	flight time last 90 days : 175
ASRS Report	726710
Person 2
Affiliation	company : air carrier
Function	flight crew : captain oversight : pic
Experience	flight time last 90 days : 286 flight time type : 12000
ASRS Report	726863
Events
Anomaly	altitude deviation : crossing restriction not met non adherence : clearance non adherence : published procedure
Independent Detector	other controllera
Resolutory Action	controller : issued advisory
Supplementary
Problem Areas	Flight Crew Human Performance
Primary Problem	Flight Crew Human Performance

Narrative:

First officer flying pom six departure out of ont. With a 7000 ft restr over pom; I started a climb to 14000 ft 1.2 mi early. As I was intercepting the radial; I was approaching pom at nearly the same time. I took the turn intercepting the radial as the turn over pom and so I initiated the climb to 14000 ft. I should have used more situational awareness for my position location. Pay a little more attention to detail of closeness to NAVAID and when to start climbing. Supplemental information from acn 726863: departing ont on the pomona departure and cleared to 14000 ft with a 7000 ft crossing restr at pomona. I turned my attention away as the PF appeared to have the restr met. After passing the pomona VOR; ATC informed us we missed the altitude 1.5 mi before pomona. I told him I thought we complied but we were sorry if we did. Proceeded to las with no further events. I should have monitored the crossing more closely and not allowed myself to be distraction.

Original NASA ASRS Text

Title: B737-700 FLT CREW HAS AN ALTDEV DURING THE POMONA SEVEN DEP.

Narrative: FO FLYING POM SIX DEP OUT OF ONT. WITH A 7000 FT RESTR OVER POM; I STARTED A CLB TO 14000 FT 1.2 MI EARLY. AS I WAS INTERCEPTING THE RADIAL; I WAS APCHING POM AT NEARLY THE SAME TIME. I TOOK THE TURN INTERCEPTING THE RADIAL AS THE TURN OVER POM AND SO I INITIATED THE CLB TO 14000 FT. I SHOULD HAVE USED MORE SITUATIONAL AWARENESS FOR MY POS LOCATION. PAY A LITTLE MORE ATTN TO DETAIL OF CLOSENESS TO NAVAID AND WHEN TO START CLBING. SUPPLEMENTAL INFO FROM ACN 726863: DEPARTING ONT ON THE POMONA DEP AND CLRED TO 14000 FT WITH A 7000 FT XING RESTR AT POMONA. I TURNED MY ATTN AWAY AS THE PF APPEARED TO HAVE THE RESTR MET. AFTER PASSING THE POMONA VOR; ATC INFORMED US WE MISSED THE ALT 1.5 MI BEFORE POMONA. I TOLD HIM I THOUGHT WE COMPLIED BUT WE WERE SORRY IF WE DID. PROCEEDED TO LAS WITH NO FURTHER EVENTS. I SHOULD HAVE MONITORED THE XING MORE CLOSELY AND NOT ALLOWED MYSELF TO BE DISTR.

Data retrieved from NASA's ASRS site as of January 2009 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.