Distraction GA pilot of PA28 takeoff without proper clearance at mlb.

Attributes
ACN	426973
Time
Date	199901
Day	Fri
Local Time Of Day	1201 To 1800
Place
Locale Reference	airport : mlb
State Reference	FL
Altitude	agl bound lower : 0 agl bound upper : 0
Environment
Flight Conditions	VMC
Light	Daylight
Aircraft 1
Operator	general aviation : personal
Flight Phase	climbout : initial
Route In Use	departure other
Flight Plan	IFR
Aircraft 2
Operator	general aviation : personal
Flight Phase	ground : holding
Person 1
Affiliation	Other
Function	flight crew : single pilot
Qualification	pilot : instrument
Experience	flight time last 90 days : 25 flight time total : 1100 flight time type : 1000
ASRS Report	426973
Person 2
Affiliation	Other
Function	observation : passenger
Qualification	other other : other
Events
Anomaly	conflict : ground less severe non adherence : far non adherence : clearance other anomaly other
Independent Detector	other controllera
Resolutory Action	none taken : detected after the fact
Consequence	Other
Miss Distance	horizontal : 0 vertical : 200
Supplementary
Air Traffic Incident	Pilot Deviation

Narrative:

In sum: IFR flight plan filed mlb to lal. VFR conditions. Pilot and 1 passenger (friend) asking questions during preflight and taxi out. During taxi, several radio xmissions occurred, some of which were directed at reporter. These instructions were not fully heard and not completely understood and no attempt was made to clarify same. One of the misunderstood clrncs was to watch for a particular aircraft. The reporter assumed said aircraft was airborne and that he had apparently missed the takeoff clearance and so began his takeoff roll. During the takeoff roll, reporter noticed aircraft on the runway. Shortly thereafter, mlb tower notified the reporter that he had taken off without a clearance.

Original NASA ASRS Text

Title: DISTR GA PLT OF PA28 TKOF WITHOUT PROPER CLRNC AT MLB.

Narrative: IN SUM: IFR FLT PLAN FILED MLB TO LAL. VFR CONDITIONS. PLT AND 1 PAX (FRIEND) ASKING QUESTIONS DURING PREFLT AND TAXI OUT. DURING TAXI, SEVERAL RADIO XMISSIONS OCCURRED, SOME OF WHICH WERE DIRECTED AT RPTR. THESE INSTRUCTIONS WERE NOT FULLY HEARD AND NOT COMPLETELY UNDERSTOOD AND NO ATTEMPT WAS MADE TO CLARIFY SAME. ONE OF THE MISUNDERSTOOD CLRNCS WAS TO WATCH FOR A PARTICULAR ACFT. THE RPTR ASSUMED SAID ACFT WAS AIRBORNE AND THAT HE HAD APPARENTLY MISSED THE TKOF CLRNC AND SO BEGAN HIS TKOF ROLL. DURING THE TKOF ROLL, RPTR NOTICED ACFT ON THE RWY. SHORTLY THEREAFTER, MLB TWR NOTIFIED THE RPTR THAT HE HAD TAKEN OFF WITHOUT A CLRNC.

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.