A cpr captain made an altitude deviation in A90 airspace.

Attributes
ACN	516420
Time
Date	200106
Day	Fri
Local Time Of Day	1201 To 1800
Place
Locale Reference	atc facility : a90.tracon
State Reference	MA
Altitude	msl bound lower : 2500 msl bound upper : 3000
Environment
Flight Conditions	VMC
Light	Daylight
Aircraft 1
Controlling Facilities	artcc : zdv.artcc
Operator	general aviation : corporate
Make Model Name	Light Transport, Low Wing, 2 Turbojet Eng
Flight Phase	descent : approach
Flight Plan	IFR
Person 1
Affiliation	company : corporate
Function	flight crew : captain oversight : pic
Qualification	pilot : atp
Experience	flight time last 90 days : 30 flight time total : 7400 flight time type : 150
ASRS Report	516420
Events
Anomaly	altitude deviation : overshoot non adherence : clearance non adherence : far
Resolutory Action	controller : issued advisory
Supplementary
Problem Areas	Flight Crew Human Performance
Primary Problem	Flight Crew Human Performance
Air Traffic Incident	Pilot Deviation

Narrative:

Bos approach on 124.4 had control of us. Directly over bed, we were told to maintain 3000 ft. Directly over bed we thought we were cleared for the visual runway 29 and left 3000 ft. Approach contacted us and asked us what altitude we were at, which was 2500 ft.

Original NASA ASRS Text

Title: A CPR CAPT MADE AN ALTDEV IN A90 AIRSPACE.

Narrative: BOS APCH ON 124.4 HAD CTL OF US. DIRECTLY OVER BED, WE WERE TOLD TO MAINTAIN 3000 FT. DIRECTLY OVER BED WE THOUGHT WE WERE CLRED FOR THE VISUAL RWY 29 AND LEFT 3000 FT. APCH CONTACTED US AND ASKED US WHAT ALT WE WERE AT, WHICH WAS 2500 FT.

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.