C-150 performs an unauthorized takeoff.

Attributes
ACN	271582
Time
Date	199405
Day	Fri
Local Time Of Day	0601 To 1200
Place
Locale Reference	airport : hnl
State Reference	HI
Altitude	agl bound lower : 0 agl bound upper : 0
Environment
Flight Conditions	VMC
Light	Daylight
Aircraft 1
Controlling Facilities	tower : hnl
Operator	general aviation : instructional
Make Model Name	Cessna 150
Operating Under FAR Part	Part 91
Flight Phase	climbout : takeoff ground : holding ground other : taxi
Flight Plan	None
Person 1
Affiliation	Other
Function	flight crew : single pilot
Qualification	pilot : instrument pilot : commercial
Experience	flight time last 90 days : 80 flight time total : 330
ASRS Report	271582
Person 2
Affiliation	Other
Function	oversight : pic
Qualification	pilot : cfi
Experience	flight time last 90 days : 100 flight time total : 400
ASRS Report	271171
Events
Anomaly	incursion : runway non adherence : far non adherence : clearance
Independent Detector	other controllera
Resolutory Action	none taken : detected after the fact
Consequence	faa : reviewed incident with flight crew
Supplementary
Primary Problem	Flight Crew Human Performance
Air Traffic Incident	Pilot Deviation

Narrative:

A CFI an I were holding on taxiway charley for a departure using the full length of runway 4R in honolulu international airport. We were in a cessna 150 waiting for an air carrier 737 to land. The CFI was in the left seat and operating the radios. I was accompanying CFI that friday of may morning on a fish spotting flight. After the 737 passed by, CFI asked if I wanted to do the takeoff. I was in an unfamiliar taxiway, but told him that I would like to and so we agreed on that. I cannot recall the exact dialogue between our aircraft and the tower before the takeoff, but I believe this is what was said after the air carrier 737 had landed. Tower: cessna, taxi, position and hold runway 4R, caution wake turbulence. CFI: cessna, position and hold runway 4R. While the CFI was talking with the tower, I maneuvered the aircraft onto the runway and went through the before takeoff checklist. I then began the takeoff roll. When we were airborne, tower told us that we had not been cleared for takeoff. Even though I was not talking on the radio, I should have paid more attention to our situation. I'm used to hearing from tower 'cleared for takeoff, caution wake turbulence.' I am not used to hearing 'position and hold, caution wake turbulence.' I misheard our message as a takeoff clearance, caution wake turbulence. Another mistake on my part was conducting the before takeoff checklist while CFI communicated with tower. This combined with complacency from knowing I was flying with a CFI, and poor cockpit resource management contributed to my deviation. Supplemental information from acn 271171: I agreed to participate in a flight with a commercial pilot. Taxied the aircraft to taxiway 4 right full length. At this point I told the other pilot that have the flight controls and the airplane, at this point other pilot was the PIC of the aircraft. Proceeded to runway and began takeoff departure. Other pilot called the tower when on the ground and the tower stated that they wanted to know who had the controls of the aircraft, other pilot stated that he had the flight controls on the departure. The tower then stated that all they need is his address because he was flying the airplane when the incident occurred. I was not the PIC in the aircraft at the time of the incident.

Original NASA ASRS Text

Title: C-150 PERFORMS AN UNAUTH TKOF.

Narrative: A CFI AN I WERE HOLDING ON TXWY CHARLEY FOR A DEP USING THE FULL LENGTH OF RWY 4R IN HONOLULU INTL ARPT. WE WERE IN A CESSNA 150 WAITING FOR AN ACR 737 TO LAND. THE CFI WAS IN THE L SEAT AND OPERATING THE RADIOS. I WAS ACCOMPANYING CFI THAT FRIDAY OF MAY MORNING ON A FISH SPOTTING FLT. AFTER THE 737 PASSED BY, CFI ASKED IF I WANTED TO DO THE TKOF. I WAS IN AN UNFAMILIAR TXWY, BUT TOLD HIM THAT I WOULD LIKE TO AND SO WE AGREED ON THAT. I CANNOT RECALL THE EXACT DIALOGUE BTWN OUR ACFT AND THE TWR BEFORE THE TKOF, BUT I BELIEVE THIS IS WHAT WAS SAID AFTER THE ACR 737 HAD LANDED. TWR: CESSNA, TAXI, POS AND HOLD RWY 4R, CAUTION WAKE TURB. CFI: CESSNA, POS AND HOLD RWY 4R. WHILE THE CFI WAS TALKING WITH THE TWR, I MANEUVERED THE ACFT ONTO THE RWY AND WENT THROUGH THE BEFORE TKOF CHKLIST. I THEN BEGAN THE TKOF ROLL. WHEN WE WERE AIRBORNE, TWR TOLD US THAT WE HAD NOT BEEN CLRED FOR TKOF. EVEN THOUGH I WAS NOT TALKING ON THE RADIO, I SHOULD HAVE PAID MORE ATTN TO OUR SIT. I'M USED TO HEARING FROM TWR 'CLRED FOR TKOF, CAUTION WAKE TURB.' I AM NOT USED TO HEARING 'POS AND HOLD, CAUTION WAKE TURB.' I MISHEARD OUR MESSAGE AS A TKOF CLRNC, CAUTION WAKE TURB. ANOTHER MISTAKE ON MY PART WAS CONDUCTING THE BEFORE TKOF CHKLIST WHILE CFI COMMUNICATED WITH TWR. THIS COMBINED WITH COMPLACENCY FROM KNOWING I WAS FLYING WITH A CFI, AND POOR COCKPIT RESOURCE MGMNT CONTRIBUTED TO MY DEV. SUPPLEMENTAL INFO FROM ACN 271171: I AGREED TO PARTICIPATE IN A FLT WITH A COMMERCIAL PLT. TAXIED THE ACFT TO TXWY 4 R FULL LENGTH. AT THIS POINT I TOLD THE OTHER PLT THAT HAVE THE FLT CTLS AND THE AIRPLANE, AT THIS POINT OTHER PLT WAS THE PIC OF THE ACFT. PROCEEDED TO RWY AND BEGAN TKOF DEP. OTHER PLT CALLED THE TWR WHEN ON THE GND AND THE TWR STATED THAT THEY WANTED TO KNOW WHO HAD THE CTLS OF THE ACFT, OTHER PLT STATED THAT HE HAD THE FLT CTLS ON THE DEP. THE TWR THEN STATED THAT ALL THEY NEED IS HIS ADDRESS BECAUSE HE WAS FLYING THE AIRPLANE WHEN THE INCIDENT OCCURRED. I WAS NOT THE PIC IN THE ACFT AT THE TIME OF THE INCIDENT.

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.