Nmacs in traffic pattern.

Attributes
ACN	278477
Time
Date	199407
Day	Sun
Local Time Of Day	1201 To 1800
Place
Locale Reference	airport : rnt
State Reference	WA
Altitude	msl bound lower : 600 msl bound upper : 600
Environment
Flight Conditions	Marginal
Light	Daylight
Aircraft 1
Controlling Facilities	tower : rnt tower : slc
Operator	general aviation : instructional
Make Model Name	Any Unknown or Unlisted Aircraft Manufacturer
Operating Under FAR Part	Part 91
Flight Phase	other
Route In Use	arrival other
Flight Plan	None
Aircraft 2
Make Model Name	Any Unknown or Unlisted Aircraft Manufacturer
Operating Under FAR Part	Part 91
Flight Phase	other
Person 1
Affiliation	Other
Function	flight crew : single pilot instruction : instructor
Qualification	pilot : cfi pilot : instrument pilot : commercial
Experience	flight time last 90 days : 282 flight time total : 695 flight time type : 242
ASRS Report	278477
Person 2
Affiliation	Other
Function	flight crew : single pilot instruction : trainee
Qualification	pilot : student
Events
Anomaly	conflict : nmac non adherence : far other spatial deviation
Independent Detector	other flight crewa
Resolutory Action	flight crew : took evasive action
Consequence	Other
Miss Distance	horizontal : 100 vertical : 150
Supplementary
Primary Problem	Flight Crew Human Performance
Air Traffic Incident	Pilot Deviation
Situations
ATC Facility	procedure or policy : unspecified

Narrative:

While conducting flight instructions left hand for runway 15 at renton airport. I was following an aircraft on final when a pattern high wing. Aircraft flew between me and the aircraft on final on my left side, then circled around behind me to the right and entered the pattern behind me. In the confusion that followed, I was forced to go around at ATC's request. Because of the total weight of my craft and hp, it was some time before I could actually start to climb after initiating the go around. (The fact that my student froze at the controls did not help) as I was attempting to go around, I side stepped left and noticed the aircraft below and ahead of me was doing touch-and-goes and was lifting off and looked to be turning left (into me in the climb). Because I knew the pilot in the plane, I instructed him to stay down (low) as I knew he could not see me as he was in a high wing aircraft. This whole mess started due to someone entering a pattern with ATC permission when ATC did not know exactly where they were and entering a pattern in a non standard manner and location. ATC said over the radio 'sorry fellas, I'm having a hard time seeing ya due to the haze.' if ATC can't see more than 1/2-3/4 mi due to haze, then the field should either be closed (IMC conditions) or non standard procedure should not be used! As in this case, it starts a chain of events. Accidents are not caused by one big mistake but more by a collection of small incidents/mistakes. In this case 1 event caused a chain of events. That almost caused. 2 mid-airs with 1 aircraft in less than 2 mins.

Original NASA ASRS Text

Title: NMACS IN TFC PATTERN.

Narrative: WHILE CONDUCTING FLT INSTRUCTIONS L HAND FOR RWY 15 AT RENTON ARPT. I WAS FOLLOWING AN ACFT ON FINAL WHEN A PATTERN HIGH WING. ACFT FLEW BTWN ME AND THE ACFT ON FINAL ON MY L SIDE, THEN CIRCLED AROUND BEHIND ME TO THE R AND ENTERED THE PATTERN BEHIND ME. IN THE CONFUSION THAT FOLLOWED, I WAS FORCED TO GAR AT ATC'S REQUEST. BECAUSE OF THE TOTAL WT OF MY CRAFT AND HP, IT WAS SOME TIME BEFORE I COULD ACTUALLY START TO CLB AFTER INITIATING THE GAR. (THE FACT THAT MY STUDENT FROZE AT THE CTLS DID NOT HELP) AS I WAS ATTEMPTING TO GAR, I SIDE STEPPED L AND NOTICED THE ACFT BELOW AND AHEAD OF ME WAS DOING TOUCH-AND-GOES AND WAS LIFTING OFF AND LOOKED TO BE TURNING L (INTO ME IN THE CLB). BECAUSE I KNEW THE PLT IN THE PLANE, I INSTRUCTED HIM TO STAY DOWN (LOW) AS I KNEW HE COULD NOT SEE ME AS HE WAS IN A HIGH WING ACFT. THIS WHOLE MESS STARTED DUE TO SOMEONE ENTERING A PATTERN WITH ATC PERMISSION WHEN ATC DID NOT KNOW EXACTLY WHERE THEY WERE AND ENTERING A PATTERN IN A NON STANDARD MANNER AND LOCATION. ATC SAID OVER THE RADIO 'SORRY FELLAS, I'M HAVING A HARD TIME SEEING YA DUE TO THE HAZE.' IF ATC CAN'T SEE MORE THAN 1/2-3/4 MI DUE TO HAZE, THEN THE FIELD SHOULD EITHER BE CLOSED (IMC CONDITIONS) OR NON STANDARD PROC SHOULD NOT BE USED! AS IN THIS CASE, IT STARTS A CHAIN OF EVENTS. ACCIDENTS ARE NOT CAUSED BY ONE BIG MISTAKE BUT MORE BY A COLLECTION OF SMALL INCIDENTS/MISTAKES. IN THIS CASE 1 EVENT CAUSED A CHAIN OF EVENTS. THAT ALMOST CAUSED. 2 MID-AIRS WITH 1 ACFT IN LESS THAN 2 MINS.

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.