<< >> NASA ASRS Report 360717, February 1997

Near midair collision between a C150 and a mooney type small aircraft. Opposite direction traffic, near same altitude traffic.

Attributes
ACN	360717
Time
Date	199702
Day	Mon
Local Time Of Day	1201 To 1800
Place
Locale Reference	atc facility : pwm
State Reference	ME
Altitude	msl bound lower : 5600 msl bound upper : 5600
Environment
Flight Conditions	VMC
Light	Daylight
Aircraft 1
Controlling Facilities	tracon : pwm
Operator	general aviation : personal
Make Model Name	Cessna 150
Operating Under FAR Part	Part 91
Flight Phase	cruise other
Route In Use	enroute : direct
Flight Plan	None
Aircraft 2
Make Model Name	Mooney Aircraft Undifferentiated or Other Model
Operating Under FAR Part	Part 91
Flight Phase	cruise other
Person 1
Affiliation	Other
Function	flight crew : single pilot
Qualification	pilot : private
Experience	flight time last 90 days : 50 flight time total : 360 flight time type : 350
ASRS Report	360717
Person 2
Affiliation	Other
Function	flight crew : single pilot
Events
Anomaly	aircraft equipment problem : less severe non adherence : far other anomaly other
Independent Detector	other controllera other flight crewa
Resolutory Action	none taken : insufficient time
Consequence	Other
Miss Distance	horizontal : 50 vertical : 200
Supplementary
Primary Problem	Flight Crew Human Performance
Air Traffic Incident	Operational Error Pilot Deviation

Narrative:

I was flying through portland's airspace from west to east at 5600 ft. The controller said I had traffic at 12 O'clock heading to the west and I started looking after turning on my landing light. Approximately 15 seconds later I saw the mooney pass under me by 200 ft and slightly off to my left side. The sun would have been directly in his eyes and I didn't see him because he was under my nose when I was informed of the traffic. I feel the controller should have requested he make his turn sooner or later instead of turning him into my position. A contributing factor may be my encoder was reading almost 300 ft high that day but the controller knew this. I told portland approach that it seemed too close to me but he said the mooney had me visually the whole time. I never saw him until he passed below me.

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Original NASA ASRS Text

Title: NMAC BTWN A C150 AND A MOONEY TYPE SMA. OPPOSITE DIRECTION TFC, NEAR SAME ALT TFC.

Narrative: I WAS FLYING THROUGH PORTLAND'S AIRSPACE FROM W TO E AT 5600 FT. THE CTLR SAID I HAD TFC AT 12 O'CLOCK HEADING TO THE W AND I STARTED LOOKING AFTER TURNING ON MY LNDG LIGHT. APPROX 15 SECONDS LATER I SAW THE MOONEY PASS UNDER ME BY 200 FT AND SLIGHTLY OFF TO MY L SIDE. THE SUN WOULD HAVE BEEN DIRECTLY IN HIS EYES AND I DIDN'T SEE HIM BECAUSE HE WAS UNDER MY NOSE WHEN I WAS INFORMED OF THE TFC. I FEEL THE CTLR SHOULD HAVE REQUESTED HE MAKE HIS TURN SOONER OR LATER INSTEAD OF TURNING HIM INTO MY POS. A CONTRIBUTING FACTOR MAY BE MY ENCODER WAS READING ALMOST 300 FT HIGH THAT DAY BUT THE CTLR KNEW THIS. I TOLD PORTLAND APCH THAT IT SEEMED TOO CLOSE TO ME BUT HE SAID THE MOONEY HAD ME VISUALLY THE WHOLE TIME. I NEVER SAW HIM UNTIL HE PASSED BELOW ME.

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.