Hawker 4000 flight crew reported descending below the MVA during approach to teb airport.

Attributes
ACN	1529805
Time
Date	201803
Local Time Of Day	0601-1200
Place
Locale Reference	TEB.Airport
State Reference	NJ
Environment
Flight Conditions	VMC
Light	Daylight
Aircraft 1
Make Model Name	Hawker 4000
Operating Under FAR Part	Part 91
Flight Phase	Initial Approach
Route In Use	Vectors STAR LVZ 4
Flight Plan	IFR
Person 1
Function	First Officer Pilot Flying
Qualification	Flight Crew Air Transport Pilot (ATP) Flight Crew Instrument Flight Crew Multiengine Flight Crew Flight Instructor
Experience	Flight Crew Last 90 Days 90 Flight Crew Total 11900 Flight Crew Type 1000
Person 2
Function	Pilot Not Flying Captain
Experience	Flight Crew Last 90 Days 75 Flight Crew Total 15500 Flight Crew Type 1600
Events
Anomaly	ATC Issue All Types Deviation - Procedural Published Material / Policy Inflight Event / Encounter CFTT / CFIT

Narrative:

Descending into teb on vectors to an ILS approach. The ceiling was solid overcast at 1;000 feet; clear above. The top altitude for the approach is 2;000 feet. When being vectored to the ILS approach it's normal to descend to 2;000 feet early. We were about 30 miles from the airport when the controller descended us to 2;000 feet and we clearly read back 2;000 feet. GPWS was displayed on flight displays and all green. It was an early departure and maybe our alert level was lower. We didn't question the descent because it was generally expected. However; since we were further north; there was some terrain and the 2;000 foot altitude would have brought us within 500 feet vertically. We were at 6;000 feet when given the 2;000 foot descent and when descending through about 3;000 feet the controller corrected his error and told us to stop at 3;000 feet! We did not question nor did he comment on our clearance.

Original NASA ASRS Text

Title: Hawker 4000 flight crew reported descending below the MVA during approach to TEB airport.

Narrative: Descending into TEB on vectors to an ILS Approach. The ceiling was solid overcast at 1;000 feet; clear above. The top altitude for the approach is 2;000 feet. When being vectored to the ILS Approach it's normal to descend to 2;000 feet early. We were about 30 miles from the airport when the controller descended us to 2;000 feet and we clearly read back 2;000 feet. GPWS was displayed on flight displays and all green. It was an early departure and maybe our alert level was lower. We didn't question the descent because it was generally expected. However; since we were further north; there was some terrain and the 2;000 foot altitude would have brought us within 500 feet vertically. We were at 6;000 feet when given the 2;000 foot descent and when descending through about 3;000 feet the controller corrected his error and told us to stop at 3;000 feet! We did not question nor did he comment on our clearance.

Data retrieved from NASA's ASRS site 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.