Mu-2 pilot reported an near midair collision with another aircraft. Reporter suggested that the othe...

Attributes
ACN	1595940
Time
Date	201811
Local Time Of Day	0601-1200
Place
Locale Reference	ZHU.ARTCC
State Reference	TX
Environment
Flight Conditions	VMC
Light	Daylight
Aircraft 1
Make Model Name	MU-2
Operating Under FAR Part	Part 91
Flight Phase	Climb
Route In Use	Other BPT 195 radial
Flight Plan	IFR
Aircraft 2
Make Model Name	Cessna Twin Turboprop Undifferentiated or Other Model
Flight Phase	Other UNK
Route In Use	Other UNK
Component
Aircraft Component	Transponder
Person 1
Function	Pilot Not Flying
Qualification	Flight Crew Air Transport Pilot (ATP) Flight Crew Flight Instructor Flight Crew Multiengine
Experience	Flight Crew Last 90 Days 75 Flight Crew Total 13000 Flight Crew Type 3000
Events
Anomaly	Conflict NMAC Deviation - Altitude Excursion From Assigned Altitude Deviation - Procedural Clearance
Miss Distance	Horizontal 0 Vertical 100

Narrative:

On IFR clearance departing bpt; climbing as assigned on 195 radial to the 50 DME fix; I was in the co-pilot seat (not flying). The first houston controller advised us of traffic off our left with no transponder/unverified. We advise negative contact. We were headed toward the sunrise in the bright haze. After handoff to next controller; we were told that it was no longer observed. Approximately 7;000-8;000 feet; I saw what appeared to be a twin cessna of some type out of the pilot's window. (Filling the window due to the close proximity.) it was coming from our 8-9 o'clock (under the wing tip) moving toward our 2 o'clock; and it passed directly under our nose. As soon as I saw it; I disconnected the autopilot and made an abrupt pull up maneuver to gain some space between aircraft. When I first saw it; he was probably 100-200 feet closing directly at us. There was no traffic alert. We did not see any target on our traffic display until after I reported the incident to ATC and inquired if he had a transponder. The controller apologized and said he was showing a transponder...which we now depicted on our display (apparently he turned it on after the near miss).

Original NASA ASRS Text

Title: MU-2 pilot reported an NMAC with another aircraft. Reporter suggested that the other aircraft did not have an operating transponder at the time of conflict.

Narrative: ON IFR clearance departing BPT; climbing as assigned on 195 radial to the 50 DME fix; I was in the co-pilot seat (not flying). The first Houston Controller advised us of traffic off our left with no transponder/unverified. We advise negative contact. We were headed toward the sunrise in the bright haze. After handoff to next controller; we were told that it was no longer observed. Approximately 7;000-8;000 feet; I saw what appeared to be a twin Cessna of some type out of the pilot's window. (Filling the window due to the close proximity.) It was coming from our 8-9 o'clock (under the wing tip) moving toward our 2 o'clock; and it passed directly under our nose. As soon as I saw it; I disconnected the autopilot and made an abrupt pull up maneuver to gain some space between aircraft. When I first saw it; he was probably 100-200 feet closing directly at us. There was no traffic alert. We did not see any target on our traffic display until after I reported the incident to ATC and inquired if he had a transponder. The controller apologized and said he was showing a transponder...which we now depicted on our display (apparently he turned it on after the near miss).

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.

Mu-2 pilot reported an near midair collision with another aircraft. Reporter suggested that the other aircraft did not have an operating transponder at the time of conflict.