<< >> NASA ASRS Report 435815, May 1999

Pilot of a mooney VFR level at 11500 ft MSL made an evasive action turn after observing a B747 climbing toward him.

Attributes
ACN	435815
Time
Date	199905
Day	Sun
Local Time Of Day	0601 To 1200
Place
Locale Reference	airport : ord.airport
State Reference	IL
Altitude	msl single value : 11500
Environment
Flight Conditions	VMC
Light	Daylight
Aircraft 1
Controlling Facilities	tracon : c90.tracon
Operator	general aviation : personal
Make Model Name	M-20 F Executive 21
Operating Under FAR Part	Part 91
Flight Phase	cruise : level
Flight Plan	None
Aircraft 2
Controlling Facilities	tracon : c90.tracon
Operator	common carrier : air carrier
Make Model Name	B747 Undifferentiated or Other Model
Operating Under FAR Part	Part 121
Flight Phase	climbout : intermediate altitude
Flight Plan	IFR
Person 1
Affiliation	other
Function	flight crew : single pilot
Qualification	pilot : instrument
Experience	flight time last 90 days : 38 flight time total : 2400 flight time type : 2000
ASRS Report	435815
Person 2
Affiliation	company : air carrier
Function	flight crew : captain oversight : pic
Qualification	pilot : atp
Events
Anomaly	conflict : airborne critical other anomaly other
Independent Detector	other flight crewa
Resolutory Action	flight crew : took evasive action
Miss Distance	horizontal : 2000 vertical : 0
Supplementary
Problem Areas	Flight Crew Human Performance
Primary Problem	Flight Crew Human Performance

Narrative:

Departed ues at XA10, climbed to 11500 ft to cross over ord class B airspace, heading 159 degrees. Approximately 19 NM northeast of ord, observed large jet climbing directly toward us. Turned 35 degrees right to avoid and watched B747 pass at our altitude less than 1/2 mi on left. Do not believe B747 was aware -- no evasive action on his part. Reported incident to ord approach and requested VFR flight following code. Diverted east on 145 degree heading to avoid 'inlet' area described by approach control. Do not believe we violated any regulation. Transponder operating on 1200 at time of incident and well above controled airspace.

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Original NASA ASRS Text

Title: PLT OF A MOONEY VFR LEVEL AT 11500 FT MSL MADE AN EVASIVE ACTION TURN AFTER OBSERVING A B747 CLBING TOWARD HIM.

Narrative: DEPARTED UES AT XA10, CLBED TO 11500 FT TO CROSS OVER ORD CLASS B AIRSPACE, HDG 159 DEGS. APPROX 19 NM NE OF ORD, OBSERVED LARGE JET CLBING DIRECTLY TOWARD US. TURNED 35 DEGS R TO AVOID AND WATCHED B747 PASS AT OUR ALT LESS THAN 1/2 MI ON L. DO NOT BELIEVE B747 WAS AWARE -- NO EVASIVE ACTION ON HIS PART. RPTED INCIDENT TO ORD APCH AND REQUESTED VFR FLT FOLLOWING CODE. DIVERTED E ON 145 DEG HDG TO AVOID 'INLET' AREA DESCRIBED BY APCH CTL. DO NOT BELIEVE WE VIOLATED ANY REG. XPONDER OPERATING ON 1200 AT TIME OF INCIDENT AND WELL ABOVE CTLED AIRSPACE.

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.