Air carrier large transport altitude deviation crossing restriction not met.

Attributes
ACN	105488
Time
Date	198902
Day	Tue
Local Time Of Day	0601 To 1200
Place
Locale Reference	atc facility : srp
State Reference	AZ
Altitude	msl bound lower : 26000 msl bound upper : 28000
Environment
Flight Conditions	VMC
Light	Daylight
Aircraft 1
Controlling Facilities	artcc : zab
Operator	common carrier : air carrier
Make Model Name	Large Transport, Low Wing, 3 Turbojet Eng
Flight Phase	descent other
Route In Use	arrival star : star
Flight Plan	IFR
Person 1
Affiliation	company : air carrier
Function	flight crew : first officer
Qualification	pilot : instrument pilot : commercial pilot : flight engineer
Experience	flight time last 90 days : 240 flight time total : 9000 flight time type : 8000
ASRS Report	105488
Person 2
Affiliation	company : air carrier
Function	flight crew : captain oversight : pic
Qualification	pilot : atp pilot : cfi
Experience	flight time last 90 days : 200 flight time total : 17300 flight time type : 10000
ASRS Report	105376
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 none taken : anomaly accepted
Consequence	Other
Supplementary
Primary Problem	Flight Crew Human Performance
Air Traffic Incident	Operational Deviation Pilot Deviation other

Narrative:

I read back a clearance to cross tonto intersection at 26000' or below to maintain 24000'. As we turned the corner at fossl intersection and about 28000' abq ATC asked us if we misunderstood the clearance to cross fossl at 26000'. I replied that we heard the crossing restriction as tonto intersection. He switched us to another frequency. The 3 of us in the cockpit all agreed that we thought he said tonto intersection and are positive that I read back tonto intersection. I feel the problem was caused by 2 similar sounding intxns close together on same arrival approach procedure. Supplemental information from acn 105376: we were anticipating a tonto restriction. ATC did not notice nor react to our readback.

Original NASA ASRS Text

Title: ACR LGT ALT DEVIATION CROSSING RESTRICTION NOT MET.

Narrative: I READ BACK A CLRNC TO CROSS TONTO INTXN AT 26000' OR BELOW TO MAINTAIN 24000'. AS WE TURNED THE CORNER AT FOSSL INTXN AND ABOUT 28000' ABQ ATC ASKED US IF WE MISUNDERSTOOD THE CLRNC TO CROSS FOSSL AT 26000'. I REPLIED THAT WE HEARD THE XING RESTRICTION AS TONTO INTXN. HE SWITCHED US TO ANOTHER FREQ. THE 3 OF US IN THE COCKPIT ALL AGREED THAT WE THOUGHT HE SAID TONTO INTXN AND ARE POSITIVE THAT I READ BACK TONTO INTXN. I FEEL THE PROB WAS CAUSED BY 2 SIMILAR SOUNDING INTXNS CLOSE TOGETHER ON SAME ARR APCH PROC. SUPPLEMENTAL INFO FROM ACN 105376: WE WERE ANTICIPATING A TONTO RESTRICTION. ATC DID NOT NOTICE NOR REACT TO OUR READBACK.

Data retrieved from NASA's ASRS site as of August 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.