A possible near midair collision between an unidented aircraft and a military DC9 (C-9B) during a missed approach from an ILS at act, tx.

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Attributes
ACN	457039
Time
Date	199912
Day	Fri
Local Time Of Day	1201 To 1800
Place
Locale Reference	navaid : act.vortac
State Reference	TX
Altitude	msl bound lower : 2700 msl bound upper : 3700
Environment
Flight Conditions	VMC
Light	Daylight
Aircraft 1
Controlling Facilities	tracon : act.tracon
Operator	other
Make Model Name	DC-9 Undifferentiated or Other Model
Navigation In Use	other vortac
Flight Phase	landing : missed approach
Flight Plan	IFR
Aircraft 2
Controlling Facilities	tracon : act.tracon
Make Model Name	Any Unknown or Unlisted Aircraft Manufacturer
Flight Phase	cruise : level
Person 1
Affiliation	government : military
Function	flight crew : captain oversight : pic
Qualification	pilot : military pilot : atp
Experience	flight time last 90 days : 100 flight time total : 9500 flight time type : 2925
ASRS Report	457039
Person 2
Affiliation	government : military
Function	observation : observer
Qualification	pilot : atp pilot : flight engineer pilot : military
Experience	flight time last 90 days : 200 flight time total : 6000 flight time type : 2700
ASRS Report	457230
Events
Anomaly	conflict : airborne critical non adherence : far non adherence : required legal separation
Independent Detector	aircraft equipment : tcas
Resolutory Action	flight crew : took evasive action
Miss Distance	vertical : 0
Supplementary
Problem Areas	Flight Crew Human Performance ATC Human Performance Airspace Structure
Primary Problem	Flight Crew Human Performance
Air Traffic Incident	Pilot Deviation

Narrative:

On climb out from missed approach/go around, turned to heading 230 degrees, climbing to 2700 ft MSL. As we leveled at 2700 ft, TCASII alerted us to a TA. The 3 of us in the cockpit (myself -- PF in left seat, aircraft commander in right seat, PNF and pilot in crew chief seat) all looked for traffic. We were looking toward the west into a lowering sun. None of us saw traffic. The TA quickly became an RA requiring a 1500 FPM climb. I initiated a climb according to required RA. We notified ATC and leveled at 3700 ft. After the 'clear of conflict,' we returned to assigned heading and altitude. An near midair collision report/incident was initiated and relayed to ATC. This was based upon us not knowing just how close we came to the other aircraft. Supplemental information from acn 457230: target appeared on TCASII screen as co-altitude and within 2 mi range. Never received any type of traffic call from approach facility.

Original NASA ASRS Text

Title: A POSSIBLE NMAC BTWN AN UNIDENTED ACFT AND A MIL DC9 (C-9B) DURING A MISSED APCH FROM AN ILS AT ACT, TX.

Narrative: ON CLBOUT FROM MISSED APCH/GAR, TURNED TO HDG 230 DEGS, CLBING TO 2700 FT MSL. AS WE LEVELED AT 2700 FT, TCASII ALERTED US TO A TA. THE 3 OF US IN THE COCKPIT (MYSELF -- PF IN L SEAT, ACFT COMMANDER IN R SEAT, PNF AND PLT IN CREW CHIEF SEAT) ALL LOOKED FOR TFC. WE WERE LOOKING TOWARD THE W INTO A LOWERING SUN. NONE OF US SAW TFC. THE TA QUICKLY BECAME AN RA REQUIRING A 1500 FPM CLB. I INITIATED A CLB ACCORDING TO REQUIRED RA. WE NOTIFIED ATC AND LEVELED AT 3700 FT. AFTER THE 'CLR OF CONFLICT,' WE RETURNED TO ASSIGNED HDG AND ALT. AN NMAC RPT/INCIDENT WAS INITIATED AND RELAYED TO ATC. THIS WAS BASED UPON US NOT KNOWING JUST HOW CLOSE WE CAME TO THE OTHER ACFT. SUPPLEMENTAL INFO FROM ACN 457230: TARGET APPEARED ON TCASII SCREEN AS CO-ALT AND WITHIN 2 MI RANGE. NEVER RECEIVED ANY TYPE OF TFC CALL FROM APCH FACILITY.

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.