<< >> NASA ASRS Report 336631, May 1996

Altitude deviation on STAR. Aircraft crossed intersection 1800 ft high. Reporter captain claims miscom with ATC.

Attributes
ACN	336631
Time
Date	199605
Day	Sun
Local Time Of Day	0601 To 1200
Place
Locale Reference	atc facility : lrp
State Reference	PA
Altitude	msl bound lower : 8000 msl bound upper : 9800
Environment
Flight Conditions	VMC
Light	Daylight
Aircraft 1
Controlling Facilities	artcc : zny
Operator	common carrier : air carrier
Make Model Name	DC-9 Undifferentiated or Other Model
Operating Under FAR Part	Part 121
Flight Phase	descent other
Route In Use	arrival other arrival star : star enroute airway : phl
Flight Plan	IFR
Person 1
Function	flight crew : captain oversight : pic
Qualification	pilot : flight engineer pilot : commercial pilot : atp
Experience	flight time last 90 days : 150 flight time total : 13500 flight time type : 3000
ASRS Report	336631
Person 2
Function	flight crew : first officer
Qualification	pilot : commercial pilot : instrument
Events
Anomaly	altitude deviation : crossing restriction not met non adherence : clearance
Independent Detector	other controllera
Resolutory Action	other
Consequence	faa : reviewed incident with flight crew
Supplementary
Primary Problem	Flight Crew Human Performance
Air Traffic Incident	Pilot Deviation

Narrative:

Descending into phl on the buck 3 arrival. I'm fairly certain that we received clearance to 8000 ft, not a cross bucks at 8000 ft. However, on handoff to approach, there was confusion with the controller as to our clearance. We received our clearance out of 11000 ft to 8000 ft at 12 mi west of bucks. At 300 KTS it's not possible to make bucks at 8000 ft. We crossed bucks at 9800 ft. I'd like to make a suggestion. On all stars, make the crossing restrs bold type and the 'expect' restrs normal type. Rather than now, both are bold.

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Original NASA ASRS Text

Title: ALTDEV ON STAR. ACFT CROSSED INTXN 1800 FT HIGH. RPTR CAPT CLAIMS MISCOM WITH ATC.

Narrative: DSNDING INTO PHL ON THE BUCK 3 ARR. I'M FAIRLY CERTAIN THAT WE RECEIVED CLRNC TO 8000 FT, NOT A CROSS BUCKS AT 8000 FT. HOWEVER, ON HDOF TO APCH, THERE WAS CONFUSION WITH THE CTLR AS TO OUR CLRNC. WE RECEIVED OUR CLRNC OUT OF 11000 FT TO 8000 FT AT 12 MI W OF BUCKS. AT 300 KTS IT'S NOT POSSIBLE TO MAKE BUCKS AT 8000 FT. WE CROSSED BUCKS AT 9800 FT. I'D LIKE TO MAKE A SUGGESTION. ON ALL STARS, MAKE THE XING RESTRS BOLD TYPE AND THE 'EXPECT' RESTRS NORMAL TYPE. RATHER THAN NOW, BOTH ARE BOLD.

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.