ATR42 took off at sju without clearance.

Attributes
ACN	540348
Time
Date	200203
Day	Sun
Local Time Of Day	1201 To 1800
Place
Locale Reference	airport : sju.airport
State Reference	PR
Altitude	agl single value : 0
Environment
Flight Conditions	VMC
Light	Daylight
Aircraft 1
Operator	common carrier : air carrier
Make Model Name	ATR 42
Operating Under FAR Part	Part 121
Navigation In Use	other
Flight Phase	ground : takeoff roll
Flight Plan	IFR
Person 1
Affiliation	company : air carrier
Function	flight crew : captain oversight : pic
Qualification	pilot : multi engine pilot : instrument pilot : commercial pilot : cfi pilot : atp
Experience	flight time last 90 days : 170 flight time total : 6800 flight time type : 2800
ASRS Report	540348
Person 2
Affiliation	company : air carrier
Function	flight crew : first officer
Events
Anomaly	incursion : runway non adherence : far non adherence : clearance non adherence : company policies non adherence : published procedure other anomaly other
Independent Detector	other controllera
Resolutory Action	none taken : anomaly accepted none taken : detected after the fact
Consequence	faa : reviewed incident with flight crew faa : assigned or threatened penalties faa : investigated
Supplementary
Problem Areas	Flight Crew Human Performance
Primary Problem	Flight Crew Human Performance
Air Traffic Incident	Pilot Deviation

Narrative:

We cleared position and hold. I called for flight controls unlock, hold bleeds and lights and cap. I did have continuous ignition, strobe and taxi light on. However, my first officer turned bleed off, and called lights on. Lights were off, I did not realize we were not cleared for takeoff. I did turn on landing lights. We never got cleared for takeoff. After takeoff, tower told me to call. I returned the call upon arrival sju. Violation already filed. Memory keys not complied with. Fact that lights not on was not caught, did not trigger we were not cleared for takeoff.

Original NASA ASRS Text

Title: ATR42 TOOK OFF AT SJU WITHOUT CLRNC.

Narrative: WE CLRED POS AND HOLD. I CALLED FOR FLT CTLS UNLOCK, HOLD BLEEDS AND LIGHTS AND CAP. I DID HAVE CONTINUOUS IGNITION, STROBE AND TAXI LIGHT ON. HOWEVER, MY FO TURNED BLEED OFF, AND CALLED LIGHTS ON. LIGHTS WERE OFF, I DID NOT REALIZE WE WERE NOT CLRED FOR TKOF. I DID TURN ON LNDG LIGHTS. WE NEVER GOT CLRED FOR TKOF. AFTER TKOF, TWR TOLD ME TO CALL. I RETURNED THE CALL UPON ARR SJU. VIOLATION ALREADY FILED. MEMORY KEYS NOT COMPLIED WITH. FACT THAT LIGHTS NOT ON WAS NOT CAUGHT, DID NOT TRIGGER WE WERE NOT CLRED FOR TKOF.

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.