B727-200 rejected takeoff at cos, co, for autopack trip system armed light not illuminated.

Attributes
ACN	490740
Time
Date	200010
Day	Sun
Local Time Of Day	0601 To 1200
Place
Locale Reference	airport : cos.airport
State Reference	CO
Altitude	agl single value : 0
Environment
Flight Conditions	VMC
Light	Daylight
Aircraft 1
Operator	common carrier : air carrier
Make Model Name	B727-200
Operating Under FAR Part	Part 121
Flight Phase	ground : takeoff roll
Flight Plan	IFR
Person 1
Affiliation	company : air carrier
Function	flight crew : second officer
Qualification	pilot : atp pilot : flight engineer pilot : instrument pilot : private pilot : multi engine
Experience	flight time last 90 days : 225 flight time total : 3500 flight time type : 500
ASRS Report	490740
Person 2
Affiliation	company : air carrier
Function	flight crew : captain oversight : pic
Qualification	pilot : atp
Events
Anomaly	aircraft equipment problem : less severe non adherence : published procedure non adherence : company policies
Independent Detector	aircraft equipment other aircraft equipment : arming light-autopack trip other flight crewa
Resolutory Action	flight crew : rejected takeoff
Supplementary
Problem Areas	Flight Crew Human Performance Aircraft
Primary Problem	Flight Crew Human Performance

Narrative:

Takeoff was rejected due to lack of an autopack trip light. As we approached the runway we completed the delayed start checklist and before takeoff checklist. As we began the takeoff roll, I noticed the autopack trip light did not illuminate. My perception was that the bulb was still dimmed for night operations. My attention was concentrated on trying to brighten the bulb. After 1-2 seconds, I realized the light was really not on and announced 'no green light.' the takeoff was rejected and I immediately realized the switch was left in the cutout position. The checklists were accomplished, a logbook entry was made, book cooling period was observed and we notified the company. Contributing factors may have included the morning departure with mild fatigue. The before takeoff checklist is normally a very busy time, but I did not feel more rushed than usual. I feel that something may have distraction me at the point in the checklist when I should have positioned the autopack trip switch to normal. But I don't recall a specific item. After a yr in the same crew position, the checklists are becoming routine. For this reason, I feel it is more important than ever to be very deliberate with the checklist.

Original NASA ASRS Text

Title: B727-200 REJECTED TKOF AT COS, CO, FOR AUTOPACK TRIP SYS ARMED LIGHT NOT ILLUMINATED.

Narrative: TKOF WAS REJECTED DUE TO LACK OF AN AUTOPACK TRIP LIGHT. AS WE APCHED THE RWY WE COMPLETED THE DELAYED START CHKLIST AND BEFORE TKOF CHKLIST. AS WE BEGAN THE TKOF ROLL, I NOTICED THE AUTOPACK TRIP LIGHT DID NOT ILLUMINATE. MY PERCEPTION WAS THAT THE BULB WAS STILL DIMMED FOR NIGHT OPS. MY ATTN WAS CONCENTRATED ON TRYING TO BRIGHTEN THE BULB. AFTER 1-2 SECONDS, I REALIZED THE LIGHT WAS REALLY NOT ON AND ANNOUNCED 'NO GREEN LIGHT.' THE TKOF WAS REJECTED AND I IMMEDIATELY REALIZED THE SWITCH WAS LEFT IN THE CUTOUT POS. THE CHKLISTS WERE ACCOMPLISHED, A LOGBOOK ENTRY WAS MADE, BOOK COOLING PERIOD WAS OBSERVED AND WE NOTIFIED THE COMPANY. CONTRIBUTING FACTORS MAY HAVE INCLUDED THE MORNING DEP WITH MILD FATIGUE. THE BEFORE TKOF CHKLIST IS NORMALLY A VERY BUSY TIME, BUT I DID NOT FEEL MORE RUSHED THAN USUAL. I FEEL THAT SOMETHING MAY HAVE DISTR ME AT THE POINT IN THE CHKLIST WHEN I SHOULD HAVE POSITIONED THE AUTOPACK TRIP SWITCH TO NORMAL. BUT I DON'T RECALL A SPECIFIC ITEM. AFTER A YR IN THE SAME CREW POS, THE CHKLISTS ARE BECOMING ROUTINE. FOR THIS REASON, I FEEL IT IS MORE IMPORTANT THAN EVER TO BE VERY DELIBERATE WITH THE CHKLIST.

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.