near midair collision

Attributes
ACN	150029
Time
Date	199006
Day	Sat
Local Time Of Day	1201 To 1800
Place
Locale Reference	airport : oak
State Reference	CA
Altitude	msl bound lower : 1000 msl bound upper : 1000
Environment
Flight Conditions	VMC
Light	Daylight
Aircraft 1
Controlling Facilities	tower : oak
Operator	general aviation : personal
Make Model Name	Small Aircraft, Low Wing, 1 Eng, Retractable Gear
Flight Phase	other
Route In Use	approach : visual arrival other
Flight Plan	None
Aircraft 2
Operator	general aviation : personal
Make Model Name	Small Aircraft, High Wing, 1 Eng, Fixed Gear
Flight Phase	climbout : intermediate altitude cruise other other
Route In Use	approach : visual departure other
Flight Plan	None
Person 1
Affiliation	Other
Function	flight crew : single pilot
Qualification	pilot : private
Experience	flight time last 90 days : 35 flight time total : 265 flight time type : 90
ASRS Report	150029
Person 2
Affiliation	Other
Function	flight crew : single pilot
Events
Anomaly	conflict : nmac other anomaly other other spatial deviation
Independent Detector	other flight crewa
Resolutory Action	none taken : detected after the fact
Consequence	Other
Miss Distance	horizontal : 30 vertical : 50
Supplementary
Primary Problem	Flight Crew Human Performance
Air Traffic Incident	Pilot Deviation

Narrative:

My small aircraft was on the 45, cleared to land on runway 27R, right traffic. Another small aircraft Y approached in climb attitude, probably after making the required right turnout off runway 27R. The big green pg&east tank has been removed! Previously, pilots were instructed to stay left of the tank. West/O the tank, there isn't that ground reference to aid in maintaining sep. Probably the small aircraft Y turned too far to the right (required for noise abatement), and xed the 45 degree entry path. Incident occurred just as I was about to turn to downwind, at mid-runway. The coliseum was about 1/8 mi off my left wing. My landing light was on. Oakland tower didn't warn of traffic.

Original NASA ASRS Text

Title: NMAC

Narrative: MY SMA WAS ON THE 45, CLRED TO LAND ON RWY 27R, R TFC. ANOTHER SMA Y APCHED IN CLB ATTITUDE, PROBABLY AFTER MAKING THE REQUIRED R TURNOUT OFF RWY 27R. THE BIG GREEN PG&E TANK HAS BEEN REMOVED! PREVIOUSLY, PLTS WERE INSTRUCTED TO STAY L OF THE TANK. W/O THE TANK, THERE ISN'T THAT GND REFERENCE TO AID IN MAINTAINING SEP. PROBABLY THE SMA Y TURNED TOO FAR TO THE R (REQUIRED FOR NOISE ABATEMENT), AND XED THE 45 DEG ENTRY PATH. INCIDENT OCCURRED JUST AS I WAS ABOUT TO TURN TO DOWNWIND, AT MID-RWY. THE COLISEUM WAS ABOUT 1/8 MI OFF MY L WING. MY LNDG LIGHT WAS ON. OAKLAND TWR DIDN'T WARN OF TFC.

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.

Near midair collision