Close proximity GA-helicopter GA-small transport near teb air traffic area. Near midair collision.

Attributes
ACN	187039
Time
Date	199108
Day	Thu
Local Time Of Day	0601 To 1200
Place
Locale Reference	atc facility : teb
State Reference	NJ
Altitude	agl bound lower : 500 agl bound upper : 500
Environment
Flight Conditions	VMC
Light	Daylight
Aircraft 1
Controlling Facilities	tower : teb
Operator	general aviation : corporate
Make Model Name	Helicopter
Flight Phase	cruise other other
Route In Use	enroute : direct
Flight Plan	VFR
Aircraft 2
Make Model Name	Small Transport
Flight Phase	cruise other
Flight Plan	VFR
Person 1
Affiliation	Other
Function	flight crew : captain oversight : pic
Qualification	pilot : atp
Experience	flight time last 90 days : 75 flight time total : 5500 flight time type : 2500
ASRS Report	187039
Person 2
Affiliation	Other
Function	flight crew : first officer
Qualification	pilot : atp
Events
Anomaly	conflict : nmac
Independent Detector	other flight crewa
Resolutory Action	none taken : insufficient time none taken : detected after the fact
Consequence	Other
Miss Distance	horizontal : 125 vertical : 125
Supplementary
Primary Problem	Flight Crew Human Performance
Situations
ATC Facility	procedure or policy : unspecified

Narrative:

I was PIC of a helicopter with my sic at the controls when I called teterboro tower for air traffic area clearance at the lincoln tunnel (reporting point for teb). The controller was busy so my first officer slowed the aircraft and started a holding pattern. After about 30 seconds we received clearance into the air traffic area. As my first officer turned towards the airport I spotted a twin engine airplane pass under our helicopter from the right. We never did see the aircraft before this happened. At 900 ft MSL at this location AGL was about 500 ft or less. VFR twin engine aircraft are flying at these low altitudes to enter the VFR corridor to the hudson river because ATC will not give TCA clrncs to climb. This results in a very crowded and dangerous situation.

Original NASA ASRS Text

Title: CLOSE PROX GA-HELI GA-SMT NEAR TEB ATA. NMAC.

Narrative: I WAS PIC OF A HELI WITH MY SIC AT THE CTLS WHEN I CALLED TETERBORO TWR FOR ATA CLRNC AT THE LINCOLN TUNNEL (RPTING POINT FOR TEB). THE CTLR WAS BUSY SO MY FO SLOWED THE ACFT AND STARTED A HOLDING PATTERN. AFTER ABOUT 30 SECONDS WE RECEIVED CLRNC INTO THE ATA. AS MY FO TURNED TOWARDS THE ARPT I SPOTTED A TWIN ENG AIRPLANE PASS UNDER OUR HELI FROM THE R. WE NEVER DID SEE THE ACFT BEFORE THIS HAPPENED. AT 900 FT MSL AT THIS LOCATION AGL WAS ABOUT 500 FT OR LESS. VFR TWIN ENG ACFT ARE FLYING AT THESE LOW ALTS TO ENTER THE VFR CORRIDOR TO THE HUDSON RIVER BECAUSE ATC WILL NOT GIVE TCA CLRNCS TO CLB. THIS RESULTS IN A VERY CROWDED AND DANGEROUS SITUATION.

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.