Good Afternoon All:
I have copied this from the Canada Transport Safety Board Daily Notifications.
It would "appear" to a data problem in the Data Base.
Stay Tuned..
----------------------------------------Occurrence 2----------------------------------------
Occurrence No. : A12F0157 Occurrence Type: INCIDENT VOLUNTARY
Class : CLASS 5 Reportable Type:
Date : 09-12-2012 Time : 19:45 UTC
Region of Responsibility : ONTARIO
Location : LA GUARDIA, UNITED STATES
Aircraft Information:
Registration : C-FEKJ Operator : AIR CANADA
Manufacturer : EMBRAER Operator Type: COMMERCIAL
Model : 170-200 CARs Info: 705 - AIRLINER
Injuries: Fatal : 0 Serious : 0 Minor : 0 None : 72 Unknown : 0
Occurrence Summary :
A12F0157: The Air Canada Embraer 175 (AC730, C-FEKJ) was cleared for the VOR approach to LGA runway 4. Prior to crossing NORAY at 1,700 ft the aircraft was observed on radar descending below the minimum altitude to 1,400 ft. ATC issued a low altitude alert and the aircraft leveled at 1,500 ft. The crew reported that LNAV and VNAV were engaged and the vertical profile on the VGP (Vertical Glide Path) appeared normal. The operator suspects there is a data problem in the navigation database for the non-precision approaches for LGA rwy 04. The event remains under investigation by Air Canada Fleet Management and Corporate Safety in co-ordination with Embraer and Honeywell.