Cpr flight crew of an light transport overshot assigned altitude on an arrival STAR fix due to a misunderstanding of the altitude and distraction by turbulence.

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Attributes
ACN	435333
Time
Date	199904
Day	Thu
Local Time Of Day	1201 To 1800
Place
Locale Reference	navaid : bty.vortac
State Reference	NV
Altitude	msl bound lower : 14000 msl bound upper : 16000
Environment
Flight Conditions	IMC
Weather Elements	Turbulence
Light	Daylight
Aircraft 1
Controlling Facilities	artcc : zla.artcc
Operator	general aviation : corporate
Make Model Name	Any Unknown or Unlisted Aircraft Manufacturer
Operating Under FAR Part	Part 91
Navigation In Use	other vortac
Flight Phase	cruise : enroute altitude change descent : intermediate altitude
Route In Use	arrival star : fuzzy.fuzzy 4
Flight Plan	IFR
Person 1
Affiliation	company : corporate
Function	flight crew : captain oversight : pic
Qualification	pilot : atp
Experience	flight time last 90 days : 100 flight time total : 6500 flight time type : 100
ASRS Report	435333
Person 2
Affiliation	company : corporate
Function	flight crew : first officer
Qualification	pilot : multi engine pilot : commercial pilot : instrument
Events
Anomaly	altitude deviation : overshoot non adherence : far non adherence : clearance
Independent Detector	other controllera
Resolutory Action	controller : issued alert flight crew : returned to original clearance
Supplementary
Problem Areas	Weather Flight Crew Human Performance
Primary Problem	Flight Crew Human Performance
Air Traffic Incident	Pilot Deviation

Narrative:

Started our descent and briefing, when we encountered moderate turbulence and trace of ice. We had 6 passenger plus a small (6 month old) infant. PF turned to PNF and asked to check and brief passenger for turbulence. At same time ATC cleared to cross fuzzy at which PNF heard and read back at 14000 ft. Captain PF verified 14000 ft was set in alerter. Descent was normal to fuzzy. Leveloff at 14000 ft. ATC stated we were cleared to 16000 ft. Both pilots remember readback as 14000 ft to ATC, 14000 ft set in alerter, but turbulence, ice, small infant were distrs. We still think controller stated 14000 ft in clearance, but did not want to query while in-flight. On previous occasions, we are given different altitudes at fuzzy so there was nothing strange about the 14000 ft we heard.

Original NASA ASRS Text

Title: CPR FLC OF AN LTT OVERSHOT ASSIGNED ALT ON AN ARR STAR FIX DUE TO A MISUNDERSTANDING OF THE ALT AND DISTR BY TURB.

Narrative: STARTED OUR DSCNT AND BRIEFING, WHEN WE ENCOUNTERED MODERATE TURB AND TRACE OF ICE. WE HAD 6 PAX PLUS A SMALL (6 MONTH OLD) INFANT. PF TURNED TO PNF AND ASKED TO CHK AND BRIEF PAX FOR TURB. AT SAME TIME ATC CLRED TO CROSS FUZZY AT WHICH PNF HEARD AND READ BACK AT 14000 FT. CAPT PF VERIFIED 14000 FT WAS SET IN ALERTER. DSCNT WAS NORMAL TO FUZZY. LEVELOFF AT 14000 FT. ATC STATED WE WERE CLRED TO 16000 FT. BOTH PLTS REMEMBER READBACK AS 14000 FT TO ATC, 14000 FT SET IN ALERTER, BUT TURB, ICE, SMALL INFANT WERE DISTRS. WE STILL THINK CTLR STATED 14000 FT IN CLRNC, BUT DID NOT WANT TO QUERY WHILE INFLT. ON PREVIOUS OCCASIONS, WE ARE GIVEN DIFFERENT ALTS AT FUZZY SO THERE WAS NOTHING STRANGE ABOUT THE 14000 FT WE HEARD.

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.