Small Transport; Low Wing; 2 Turbojet Eng
Flight Crew Air Transport Pilot (ATP); Flight Crew Multiengine; Flight Crew Instrument; Flight Crew Flight Instructor
Flight Crew Last 90 Days 20; Flight Crew Total 6200; Flight Crew Type 900
Distraction; Fatigue; Situational Awareness
Deviation / Discrepancy - Procedural Published Material / Policy; Deviation / Discrepancy - Procedural Clearance; Deviation / Discrepancy - Procedural Weight And Balance; Flight Deck / Cabin / Aircraft Event Other / Unknown; Ground Event / Encounter Other / Unknown
General None Reported / Taken
Airport; Human Factors
While taxiing for takeoff for runway 15 at night after being on duty for over 12 hours I departed from runway 15 at the intersection of taxiway 'C' and 15 instead of the end of runway 15. This was approximately 800-1000 feet from the departure end. The aircraft; fortunately; had no problems with the decreased runway available for takeoff. Factors which contributed to this error are fatigue; due to the long duty period I was experiencing. Secondly; cockpit distraction from passenger conversations which caused my concentration to not be as focused on taxiing the aircraft. Thirdly; there were numerous taxiway edge lights out of service at the time which contributed to the loss of position awareness.The tower did not indicate or say anything after departure and rest of flight was uneventful.Corrective actions would include limiting the duty period for flight crews to help alleviate any fatigue which may arise from the extended duty period. Secondly; stay focused on taxi operations and not let passenger conversations distract from 'flying the airplane'. Lastly; have timely repairs made to any airport lighting which could have helped illuminate the taxi ways and position awareness.
The pilot of a light jet took-off from Runway 15 from intersection C vice full length as planned. Cited as contributing factors were: fatigue (over 12 hours on duty); distractions from passenger conversation; and multiple inoperative taxiway lights.