An A320 first officer, PNF, reported that the PF programmed the altitude crossing restr, but did not actually commence the descent, causing them to be high.

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Attributes
ACN	454260
Time
Date	199911
Day	Thu
Local Time Of Day	1201 To 1800
Place
Locale Reference	navaid : har.vortac
State Reference	PA
Altitude	msl bound lower : 25000 msl bound upper : 27000
Environment
Flight Conditions	VMC
Light	Daylight
Aircraft 1
Controlling Facilities	artcc : zny.artcc
Operator	common carrier : air carrier
Make Model Name	A320
Operating Under FAR Part	Part 121
Navigation In Use	other
Route In Use	arrival star : bunts 1
Flight Plan	IFR
Person 1
Affiliation	company : air carrier
Function	flight crew : first officer
Qualification	pilot : instrument pilot : multi engine pilot : atp pilot : cfi pilot : flight engineer
Experience	flight time last 90 days : 150 flight time total : 11001 flight time type : 1501
Person 2
Affiliation	company : air carrier
Function	flight crew : captain oversight : pic
Qualification	pilot : atp
Events
Anomaly	altitude deviation : undershoot altitude deviation : crossing restriction not met non adherence : company policies
Independent Detector	other flight crewa other flight crewb
Resolutory Action	controller : issued new clearance
Supplementary
Problem Areas	Aircraft Flight Crew Human Performance
Primary Problem	Flight Crew Human Performance

Narrative:

Captain was PF. Cleared to cross cofax intersection on the bunts 1 arrival to phl at FL250. Cruise altitude FL330. Captain was preoccupied with approach review. Although altitude restr was entered on mcdu and in altitude select window on FMS, he did not initiated descent until we were about 8 NM from crossing fix. With 100 KT tailwind, it was obvious that we would miss restr. Advised ATC we would be high. ATC issued a turn off course. No further incident resulted.

Original NASA ASRS Text

Title: AN A320 FO, PNF, RPTED THAT THE PF PROGRAMMED THE ALT XING RESTR, BUT DID NOT ACTUALLY COMMENCE THE DSCNT, CAUSING THEM TO BE HIGH.

Narrative: CAPT WAS PF. CLRED TO CROSS COFAX INTXN ON THE BUNTS 1 ARR TO PHL AT FL250. CRUISE ALT FL330. CAPT WAS PREOCCUPIED WITH APCH REVIEW. ALTHOUGH ALT RESTR WAS ENTERED ON MCDU AND IN ALT SELECT WINDOW ON FMS, HE DID NOT INITIATED DSCNT UNTIL WE WERE ABOUT 8 NM FROM XING FIX. WITH 100 KT TAILWIND, IT WAS OBVIOUS THAT WE WOULD MISS RESTR. ADVISED ATC WE WOULD BE HIGH. ATC ISSUED A TURN OFF COURSE. NO FURTHER INCIDENT RESULTED.

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.