B737 crew with ZTL ARTCC missed a crossing restr due to incorrect FMS entry.

Attributes
ACN	460371
Time
Date	200001
Day	Sun
Local Time Of Day	1201 To 1800
Place
State Reference	AL
Altitude	msl bound lower : 21000 msl bound upper : 29000
Environment
Flight Conditions	VMC
Light	Night
Aircraft 1
Controlling Facilities	artcc : ztl.artcc
Operator	common carrier : air carrier
Make Model Name	B737 Undifferentiated or Other Model
Operating Under FAR Part	Part 121
Flight Phase	cruise : enroute altitude change
Route In Use	enroute airway : j22.airway
Flight Plan	IFR
Person 1
Affiliation	company : air carrier
Function	flight crew : captain oversight : pic
Qualification	pilot : multi engine pilot : instrument pilot : atp pilot : commercial
Experience	flight time last 90 days : 210 flight time total : 10000 flight time type : 6000
ASRS Report	460371
Person 2
Affiliation	company : air carrier
Function	flight crew : first officer
Qualification	pilot : atp pilot : commercial pilot : multi engine pilot : instrument
Experience	flight time last 90 days : 150 flight time total : 3000 flight time type : 300
ASRS Report	460240
Events
Anomaly	altitude deviation : crossing restriction not met
Resolutory Action	none taken : anomaly accepted
Supplementary
Problem Areas	Flight Crew Human Performance
Primary Problem	Flight Crew Human Performance
Air Traffic Incident	Pilot Deviation

Narrative:

Missed FL210 altitude restr 75 NM southwest of vulcan due to incorrectly entering restr in the FMC and not xchking the VOR/DME. (Did not get an error message or 'discontinuity' warning from FMC). Diligent xchking of VOR/DME will preclude a future recurrence.

Original NASA ASRS Text

Title: B737 CREW WITH ZTL ARTCC MISSED A XING RESTR DUE TO INCORRECT FMS ENTRY.

Narrative: MISSED FL210 ALT RESTR 75 NM SW OF VULCAN DUE TO INCORRECTLY ENTERING RESTR IN THE FMC AND NOT XCHKING THE VOR/DME. (DID NOT GET AN ERROR MESSAGE OR 'DISCONTINUITY' WARNING FROM FMC). DILIGENT XCHKING OF VOR/DME WILL PRECLUDE A FUTURE RECURRENCE.

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.