Flight crew of a B737-200 failed to make a crossing restr due to a misunderstanding and coordination between the flight crew and the actual fix given by ATC. The routing to which the flight crew were cleared would not have taken them over the crossing fix in the first place. Therefore, even though the first officer read back the clearance, and the captain seemingly responded to it, the captain believed the fix to be the VOR to which they were headed.

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Attributes
ACN	387420
Time
Date	199711
Day	Fri
Local Time Of Day	1201 To 1800
Place
Locale Reference	atc facility : ftz airport : stl
State Reference	MO
Altitude	msl bound lower : 11000 msl bound upper : 11000
Environment
Flight Conditions	VMC
Light	Night
Aircraft 1
Controlling Facilities	tracon : stl
Operator	common carrier : air carrier
Make Model Name	B737-200
Operating Under FAR Part	Part 121
Flight Phase	cruise other descent other
Flight Plan	IFR
Person 1
Affiliation	company : air carrier
Function	flight crew : captain oversight : pic
Qualification	other other : other pilot : atp pilot : instrument pilot : commercial pilot : cfi
Experience	flight time last 90 days : 200 flight time total : 9500 flight time type : 5000
ASRS Report	387420
Person 2
Affiliation	company : air carrier
Function	flight crew : first officer
Qualification	other other : other pilot : atp
Experience	flight time last 90 days : 240 flight time total : 9568 flight time type : 2300
ASRS Report	387477
Events
Anomaly	altitude deviation : crossing restriction not met
Independent Detector	other controllera
Resolutory Action	none taken : anomaly accepted
Consequence	Other
Supplementary
Primary Problem	ATC Human Performance
Air Traffic Incident	other

Narrative:

En route to stl from mci, ZKC cleared us direct to ftz VOR. Normally we go over kayla intersection (ftz 275 degree radial, 11 mi) then ftz on the trake arrival into stl. ZKC then cleared us to cross kayla intersection at 11000 ft and 250 KTS. We were already direct to ftz VOR on the 275 degree radial which does not take us over kayla intersection. Since we were not going over kayla, I had my mind tuned in to think they wanted us to cross ftz VOR at 11000 ft and 250 KTS. We did not catch this mistake or ask ATC for a different crossing restr since we were not going over kayla intersection. Approximately 4 mi from ftz VOR on stl approach, approach asked if we had been given a crossing restr at kayla. At this point we were level at 11000 ft, 250 KTS. We responded 'yes' realizing our mistake. We told ATC that we were never over kayla intersection as we had been cleared direct to ftz VOR. ATC responded 'no problem.' we should have caught the mistake initially when ATC cleared us to cross kayla intersection at 11000 ft, 250 KTS, since we were not going over kayla. ATC should not have given us the crossing restr at kayla since they had cleared us previously to ftz VOR which would not take us over kayla intersection.

Original NASA ASRS Text

Title: FLC OF A B737-200 FAILED TO MAKE A XING RESTR DUE TO A MISUNDERSTANDING AND COORD BTWN THE FLC AND THE ACTUAL FIX GIVEN BY ATC. THE ROUTING TO WHICH THE FLC WERE CLRED WOULD NOT HAVE TAKEN THEM OVER THE XING FIX IN THE FIRST PLACE. THEREFORE, EVEN THOUGH THE FO READ BACK THE CLRNC, AND THE CAPT SEEMINGLY RESPONDED TO IT, THE CAPT BELIEVED THE FIX TO BE THE VOR TO WHICH THEY WERE HEADED.

Narrative: ENRTE TO STL FROM MCI, ZKC CLRED US DIRECT TO FTZ VOR. NORMALLY WE GO OVER KAYLA INTXN (FTZ 275 DEG RADIAL, 11 MI) THEN FTZ ON THE TRAKE ARR INTO STL. ZKC THEN CLRED US TO CROSS KAYLA INTXN AT 11000 FT AND 250 KTS. WE WERE ALREADY DIRECT TO FTZ VOR ON THE 275 DEG RADIAL WHICH DOES NOT TAKE US OVER KAYLA INTXN. SINCE WE WERE NOT GOING OVER KAYLA, I HAD MY MIND TUNED IN TO THINK THEY WANTED US TO CROSS FTZ VOR AT 11000 FT AND 250 KTS. WE DID NOT CATCH THIS MISTAKE OR ASK ATC FOR A DIFFERENT XING RESTR SINCE WE WERE NOT GOING OVER KAYLA INTXN. APPROX 4 MI FROM FTZ VOR ON STL APCH, APCH ASKED IF WE HAD BEEN GIVEN A XING RESTR AT KAYLA. AT THIS POINT WE WERE LEVEL AT 11000 FT, 250 KTS. WE RESPONDED 'YES' REALIZING OUR MISTAKE. WE TOLD ATC THAT WE WERE NEVER OVER KAYLA INTXN AS WE HAD BEEN CLRED DIRECT TO FTZ VOR. ATC RESPONDED 'NO PROB.' WE SHOULD HAVE CAUGHT THE MISTAKE INITIALLY WHEN ATC CLRED US TO CROSS KAYLA INTXN AT 11000 FT, 250 KTS, SINCE WE WERE NOT GOING OVER KAYLA. ATC SHOULD NOT HAVE GIVEN US THE XING RESTR AT KAYLA SINCE THEY HAD CLRED US PREVIOUSLY TO FTZ VOR WHICH WOULD NOT TAKE US OVER KAYLA INTXN.

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.