Falcon 2000 flight crew has a egpws incident on approach to teb.

Attributes
ACN	718903
Time
Date	200611
Local Time Of Day	1201 To 1800
Place
Locale Reference	intersection : unvil
State Reference	NJ
Altitude	msl single value : 2500
Environment
Flight Conditions	VMC
Light	Daylight
Aircraft 1
Controlling Facilities	tracon : n90.tracon
Operator	general aviation : corporate
Make Model Name	Falcon 2000
Operating Under FAR Part	Part 91
Navigation In Use	ils localizer only : 19 other
Flight Phase	descent : approach
Flight Plan	IFR
Person 1
Affiliation	company : corporate
Function	flight crew : first officer
Qualification	pilot : flight engineer pilot : atp pilot : multi engine pilot : instrument
Experience	flight time last 90 days : 100 flight time total : 8500 flight time type : 50
ASRS Report	718903
Person 2
Affiliation	company : corporate
Function	flight crew : captain oversight : pic
Events
Anomaly	other spatial deviation
Independent Detector	aircraft equipment : gpws other controllera other flight crewa other flight crewb
Resolutory Action	controller : issued advisory controller : issued new clearance
Supplementary
Problem Areas	Flight Crew Human Performance Airspace Structure ATC Human Performance
Primary Problem	Ambiguous

Narrative:

We were given a vector and cleared by ATC to descend from 4000 ft to 2000 ft. We noted that the MSA was 2900 ft; but figured the MVA was lower. We complied with the instruction. Just as we were descending through 2500 ft and we noticed a hill up ahead approaching along with the aid of enhanced GPWS the controller told the flight crew to climb; climb; climb to 3000 ft. We did immediately read back the climb clearance to 3000 ft and stated that we were cleared to 2000 ft. No response from the controller; and noticed a new controller was now working the frequency. I suspect controller overload; lack of knowing what the MVA was in that sector (perhaps could be added to plates). Thanks to controller awareness; enhanced GPWS; and crew alertness stopped a possible disaster.

Original NASA ASRS Text

Title: FALCON 2000 FLT CREW HAS A EGPWS INCIDENT ON APCH TO TEB.

Narrative: WE WERE GIVEN A VECTOR AND CLRED BY ATC TO DSND FROM 4000 FT TO 2000 FT. WE NOTED THAT THE MSA WAS 2900 FT; BUT FIGURED THE MVA WAS LOWER. WE COMPLIED WITH THE INSTRUCTION. JUST AS WE WERE DSNDING THROUGH 2500 FT AND WE NOTICED A HILL UP AHEAD APCHING ALONG WITH THE AID OF ENHANCED GPWS THE CTLR TOLD THE FLT CREW TO CLB; CLB; CLB TO 3000 FT. WE DID IMMEDIATELY READ BACK THE CLB CLRNC TO 3000 FT AND STATED THAT WE WERE CLRED TO 2000 FT. NO RESPONSE FROM THE CTLR; AND NOTICED A NEW CTLR WAS NOW WORKING THE FREQ. I SUSPECT CTLR OVERLOAD; LACK OF KNOWING WHAT THE MVA WAS IN THAT SECTOR (PERHAPS COULD BE ADDED TO PLATES). THANKS TO CTLR AWARENESS; ENHANCED GPWS; AND CREW ALERTNESS STOPPED A POSSIBLE DISASTER.

Data retrieved from NASA's ASRS site as of January 2009 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.