Reporter back taxis without checking with tower on closed portion of runway.

Attributes
ACN	306852
Time
Date	199506
Day	Wed
Local Time Of Day	1201 To 1800
Place
Locale Reference	airport : sgf
State Reference	MO
Altitude	agl bound lower : 0 agl bound upper : 0
Environment
Flight Conditions	VMC
Light	Daylight
Aircraft 1
Operator	general aviation : corporate
Make Model Name	Chancellor 414A & C414
Operating Under FAR Part	Part 91
Flight Phase	ground other : taxi
Flight Plan	IFR
Person 1
Affiliation	Other
Function	flight crew : single pilot
Qualification	pilot : atp pilot : cfi
Experience	flight time last 90 days : 200 flight time total : 14000 flight time type : 1000
ASRS Report	306852
Person 2
Affiliation	government : faa
Function	controller : local
Qualification	controller : non radar
Events
Anomaly	non adherence : clearance other anomaly other
Independent Detector	other controllera
Resolutory Action	controller : issued new clearance flight crew : returned to intended course or assigned course other
Consequence	faa : reviewed incident with flight crew
Supplementary
Primary Problem	Flight Crew Human Performance
Air Traffic Incident	Pilot Deviation other

Narrative:

After receiving an IFR clearance, ground control instructed me to taxi to runway 20 with an intersection departure from taxiway 'a' due to the first 120 ft of the runway being closed. After receiving takeoff clearance from local control I began to back taxi about 100 ft for a little additional takeoff distance. Local control then issued me an instruction to make a 180 degree turn and takeoff immediately as I was not authority/authorized to back taxi on the closed runway portion. There was also traffic turning a 2 mi final which could have been a conflict. I immediately reversed direction, took off and exited the area without further incident or problem. This problem arose due to my not being aware that an intersection departure from taxiway 'a' was on the closed portion of the runway. Runway closure markings were inadequate. There was but 1 thin line painted on the runway downfield from taxiway 'a' that was not visible from the cockpit. Had I known I was already on the closed portion of the runway I would never had back taxied at all. Regardless of the fact however, I know better than to make unauthorized 180's or back taxi's on runways. That was an error on my part never to be repeated. This incident could have been prevented had there been better signage, markings, and barrier present to indicate the closed runway situation. Callback conversation with reporter revealed the following: the reporter stated he was flying a pressurized cessna 414. It was a hot day and he wanted to have all the runway possible for his light twin. The thought did not occur to him that the runway was closed but in hind sight he realized he should have told the tower what he was planning to do before the right turn to back taxi rather than what the tower would normally expect, a left turn for takeoff. The runway was actually closed at the point where the reporter turned on to the runway from taxiway 'a' but that was what the tower wanted. The runway is no longer closed in that area so the issue is academic as far as signs and markings are concerned. There has been no action from the FAA against the reporter for his back taxi.

Original NASA ASRS Text

Title: RPTR BACK TAXIS WITHOUT CHKING WITH TWR ON CLOSED PORTION OF RWY.

Narrative: AFTER RECEIVING AN IFR CLRNC, GND CTL INSTRUCTED ME TO TAXI TO RWY 20 WITH AN INTXN DEP FROM TXWY 'A' DUE TO THE FIRST 120 FT OF THE RWY BEING CLOSED. AFTER RECEIVING TKOF CLRNC FROM LCL CTL I BEGAN TO BACK TAXI ABOUT 100 FT FOR A LITTLE ADDITIONAL TKOF DISTANCE. LCL CTL THEN ISSUED ME AN INSTRUCTION TO MAKE A 180 DEG TURN AND TKOF IMMEDIATELY AS I WAS NOT AUTH TO BACK TAXI ON THE CLOSED RWY PORTION. THERE WAS ALSO TFC TURNING A 2 MI FINAL WHICH COULD HAVE BEEN A CONFLICT. I IMMEDIATELY REVERSED DIRECTION, TOOK OFF AND EXITED THE AREA WITHOUT FURTHER INCIDENT OR PROB. THIS PROB AROSE DUE TO MY NOT BEING AWARE THAT AN INTXN DEP FROM TXWY 'A' WAS ON THE CLOSED PORTION OF THE RWY. RWY CLOSURE MARKINGS WERE INADEQUATE. THERE WAS BUT 1 THIN LINE PAINTED ON THE RWY DOWNFIELD FROM TXWY 'A' THAT WAS NOT VISIBLE FROM THE COCKPIT. HAD I KNOWN I WAS ALREADY ON THE CLOSED PORTION OF THE RWY I WOULD NEVER HAD BACK TAXIED AT ALL. REGARDLESS OF THE FACT HOWEVER, I KNOW BETTER THAN TO MAKE UNAUTH 180'S OR BACK TAXI'S ON RWYS. THAT WAS AN ERROR ON MY PART NEVER TO BE REPEATED. THIS INCIDENT COULD HAVE BEEN PREVENTED HAD THERE BEEN BETTER SIGNAGE, MARKINGS, AND BARRIER PRESENT TO INDICATE THE CLOSED RWY SIT. CALLBACK CONVERSATION WITH RPTR REVEALED THE FOLLOWING: THE RPTR STATED HE WAS FLYING A PRESSURIZED CESSNA 414. IT WAS A HOT DAY AND HE WANTED TO HAVE ALL THE RWY POSSIBLE FOR HIS LIGHT TWIN. THE THOUGHT DID NOT OCCUR TO HIM THAT THE RWY WAS CLOSED BUT IN HIND SIGHT HE REALIZED HE SHOULD HAVE TOLD THE TWR WHAT HE WAS PLANNING TO DO BEFORE THE R TURN TO BACK TAXI RATHER THAN WHAT THE TWR WOULD NORMALLY EXPECT, A L TURN FOR TKOF. THE RWY WAS ACTUALLY CLOSED AT THE POINT WHERE THE RPTR TURNED ON TO THE RWY FROM TXWY 'A' BUT THAT WAS WHAT THE TWR WANTED. THE RWY IS NO LONGER CLOSED IN THAT AREA SO THE ISSUE IS ACADEMIC AS FAR AS SIGNS AND MARKINGS ARE CONCERNED. THERE HAS BEEN NO ACTION FROM THE FAA AGAINST THE RPTR FOR HIS BACK TAXI.

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.