DC9 crew did not make an assigned crossing restr.

Attributes
ACN	453350
Time
Date	199910
Day	Fri
Local Time Of Day	0601 To 1200
Place
State Reference	DE
Altitude	msl bound lower : 26000 msl bound upper : 28000
Environment
Flight Conditions	VMC
Light	Daylight
Aircraft 1
Controlling Facilities	artcc : zdc.artcc tracon : i90.tracon
Operator	common carrier : air carrier
Make Model Name	DC-9 Undifferentiated or Other Model
Operating Under FAR Part	Part 121
Flight Phase	descent : intermediate altitude
Flight Plan	IFR
Person 1
Affiliation	company : air carrier
Function	flight crew : first officer
Qualification	pilot : multi engine pilot : cfi pilot : atp pilot : instrument
Experience	flight time last 90 days : 196 flight time total : 8007 flight time type : 1756
ASRS Report	453350
Person 2
Affiliation	company : air carrier
Function	flight crew : captain oversight : pic
Qualification	pilot : atp
Events
Anomaly	altitude deviation : crossing restriction not met altitude deviation : undershoot non adherence : clearance
Independent Detector	other controllera
Resolutory Action	none taken : detected after the fact
Supplementary
Problem Areas	Flight Crew Human Performance
Primary Problem	Flight Crew Human Performance
Air Traffic Incident	Pilot Deviation

Narrative:

On STAR, center cleared us to 'descend to FL260 by kerno.' I acknowledged the captain's readback. During descent, captain started a discussion about something. When I checked the STAR chart I mistook 'somto' for 'kerno.' kerno was 30 mi before the next NAVAID, somto was 10 mi. Passing FL280, center asked us our altitude passing. It was then we realized we had missed the crossing restr. Center didn't indicate any conflicts or problems. I've said it before 'check and rechk.'

Original NASA ASRS Text

Title: DC9 CREW DID NOT MAKE AN ASSIGNED XING RESTR.

Narrative: ON STAR, CTR CLRED US TO 'DSND TO FL260 BY KERNO.' I ACKNOWLEDGED THE CAPT'S READBACK. DURING DSCNT, CAPT STARTED A DISCUSSION ABOUT SOMETHING. WHEN I CHKED THE STAR CHART I MISTOOK 'SOMTO' FOR 'KERNO.' KERNO WAS 30 MI BEFORE THE NEXT NAVAID, SOMTO WAS 10 MI. PASSING FL280, CTR ASKED US OUR ALT PASSING. IT WAS THEN WE REALIZED WE HAD MISSED THE XING RESTR. CTR DIDN'T INDICATE ANY CONFLICTS OR PROBS. I'VE SAID IT BEFORE 'CHK AND RECHK.'

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.