Cpr rotary wing aircraft has low altitude alert from ATC on approach.

Attributes
ACN	272421
Time
Date	199405
Day	Thu
Local Time Of Day	0601 To 1200
Place
Locale Reference	airport : bos
State Reference	MA
Altitude	msl bound lower : 1400 msl bound upper : 1400
Environment
Flight Conditions	IMC
Light	Daylight
Aircraft 1
Controlling Facilities	tracon : bos tower : abi
Operator	general aviation : corporate
Make Model Name	Helicopter
Operating Under FAR Part	Part 91
Navigation In Use	Other Other
Flight Phase	descent : approach
Route In Use	arrival other enroute : direct
Flight Plan	IFR
Person 1
Affiliation	Other
Function	flight crew : captain oversight : pic
Qualification	pilot : atp
Experience	flight time last 90 days : 40 flight time total : 8000 flight time type : 40
ASRS Report	272421
Person 2
Affiliation	Other
Function	flight crew : first officer
Qualification	pilot : atp
Experience	flight time last 90 days : 40 flight time total : 10000 flight time type : 40
ASRS Report	272426
Events
Anomaly	aircraft equipment problem : less severe altitude deviation : overshoot non adherence : clearance non adherence : published procedure other spatial deviation
Independent Detector	other controllera
Resolutory Action	other
Consequence	Other
Supplementary
Primary Problem	Flight Crew Human Performance
Air Traffic Incident	Pilot Deviation

Narrative:

We got a low altitude warning from the controller (bos approach) on our descent to 1400 ft prior to the OM. We were in the altitude pre- select mode and it failed to capture the altitude.

Original NASA ASRS Text

Title: CPR ROTARY WING ACFT HAS LOW ALT ALERT FROM ATC ON APCH.

Narrative: WE GOT A LOW ALT WARNING FROM THE CTLR (BOS APCH) ON OUR DSCNT TO 1400 FT PRIOR TO THE OM. WE WERE IN THE ALT PRE- SELECT MODE AND IT FAILED TO CAPTURE THE ALT.

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.