DC9 TCASII TA with military C130.

Attributes
ACN	307374
Time
Date	199506
Day	Sat
Local Time Of Day	1201 To 1800
Place
Locale Reference	atc facility : alb
State Reference	NY
Altitude	msl bound lower : 14000 msl bound upper : 15000
Environment
Flight Conditions	Mixed
Light	Daylight
Aircraft 1
Controlling Facilities	artcc : zbw
Operator	common carrier : air carrier
Make Model Name	DC-9 50
Operating Under FAR Part	Part 121
Flight Phase	descent other
Route In Use	enroute : on vectors
Flight Plan	IFR
Aircraft 2
Operator	other
Make Model Name	Hercules (C-130)
Operating Under FAR Part	Part 91
Flight Phase	cruise other
Route In Use	enroute : direct
Flight Plan	IFR
Person 1
Affiliation	company : air carrier
Function	flight crew : first officer
Qualification	pilot : atp
ASRS Report	307374
Person 2
Affiliation	company : air carrier
Function	flight crew : captain oversight : pic
Qualification	pilot : atp
Events
Anomaly	conflict : airborne less severe
Independent Detector	aircraft equipment other aircraft equipment : unspecified
Resolutory Action	none taken : anomaly accepted
Consequence	Other
Miss Distance	vertical : 1000
Supplementary
Primary Problem	Flight Crew Human Performance
Air Traffic Incident	other

Narrative:

ZBW issued traffic at our 2 O'clock and 10 mi at 15000 ft. We were given a heading approximately 050 degree until leaving 14000 ft then cleared direct alb. After leaving 14000 ft, we heard TCASII alert 'traffic, traffic' and saw target displayed at approximately 7 O'clock position on TCASII with plus 100 ft altitude. At about the same time a shadow passed over our aircraft. TCASII did not issue a RA. ZBW stands by their radar showing the C-130 at 15000 ft and I stand by my TCASII showing other aircraft at plus 100 ft. My TCASII plus shadow cast on my aircraft leads me to this affirmation.

Original NASA ASRS Text

Title: DC9 TCASII TA WITH MIL C130.

Narrative: ZBW ISSUED TFC AT OUR 2 O'CLOCK AND 10 MI AT 15000 FT. WE WERE GIVEN A HDG APPROX 050 DEG UNTIL LEAVING 14000 FT THEN CLRED DIRECT ALB. AFTER LEAVING 14000 FT, WE HEARD TCASII ALERT 'TFC, TFC' AND SAW TARGET DISPLAYED AT APPROX 7 O'CLOCK POS ON TCASII WITH PLUS 100 FT ALT. AT ABOUT THE SAME TIME A SHADOW PASSED OVER OUR ACFT. TCASII DID NOT ISSUE A RA. ZBW STANDS BY THEIR RADAR SHOWING THE C-130 AT 15000 FT AND I STAND BY MY TCASII SHOWING OTHER ACFT AT PLUS 100 FT. MY TCASII PLUS SHADOW CAST ON MY ACFT LEADS ME TO THIS AFFIRMATION.

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.