During a bumpy takeoff roll the aft door light is illuminated on the aircraft annunciator.

Attributes
ACN	157050
Time
Date	199009
Day	Mon
Local Time Of Day	1201 To 1800
Place
Locale Reference	airport : bff
State Reference	NE
Altitude	agl bound lower : 0 agl bound upper : 0
Environment
Flight Conditions	VMC
Light	Daylight
Aircraft 1
Operator	common carrier : air carrier
Make Model Name	Light Transport, Low Wing, 2 Turboprop Eng
Flight Phase	climbout : takeoff
Flight Plan	VFR
Person 1
Affiliation	company : air carrier
Function	flight crew : captain oversight : pic
Qualification	pilot : atp
Experience	flight time last 90 days : 270 flight time total : 3000 flight time type : 270
ASRS Report	157050
Person 2
Affiliation	company : air carrier
Function	flight crew : first officer
Qualification	pilot : commercial pilot : instrument
Events
Anomaly	aircraft equipment problem : less severe non adherence : published procedure
Independent Detector	aircraft equipment other aircraft equipment : unspecified
Resolutory Action	other
Consequence	Other
Supplementary
Primary Problem	Ambiguous
Air Traffic Incident	other

Narrative:

We left the gate at scotts bluff at XA30. All systems and annunciators were functioning normally. We started the takeoff roll. Everything came up normal. As the nose wheel left the ground, the back wheels hit a little bump on the runway and the master caution light went on. My first officer notified me it was the aft cabin door annunciator that had illuminated. Once reaching pattern altitude we decided to return and land and go back to the gate to resecure the door. Once reaching the gate my first officer along with the gate agent went to the back of the aircraft, opened the door and then resecured it, extinguishing the aft cabin door annunciator. The first officer checked all the other locking verification methods and everything was operating as it should have. Both of us were confident the system was functioning normally. After reconfiguring the weights and getting a new release we departed for den and never had a problem with the aft cabin door or its annunciator the rest of the day.

Original NASA ASRS Text

Title: DURING A BUMPY TKOF ROLL THE AFT DOOR LIGHT IS ILLUMINATED ON THE ACFT ANNUNCIATOR.

Narrative: WE LEFT THE GATE AT SCOTTS BLUFF AT XA30. ALL SYSTEMS AND ANNUNCIATORS WERE FUNCTIONING NORMALLY. WE STARTED THE TKOF ROLL. EVERYTHING CAME UP NORMAL. AS THE NOSE WHEEL LEFT THE GND, THE BACK WHEELS HIT A LITTLE BUMP ON THE RWY AND THE MASTER CAUTION LIGHT WENT ON. MY F/O NOTIFIED ME IT WAS THE AFT CABIN DOOR ANNUNCIATOR THAT HAD ILLUMINATED. ONCE REACHING PATTERN ALT WE DECIDED TO RETURN AND LAND AND GO BACK TO THE GATE TO RESECURE THE DOOR. ONCE REACHING THE GATE MY F/O ALONG WITH THE GATE AGENT WENT TO THE BACK OF THE ACFT, OPENED THE DOOR AND THEN RESECURED IT, EXTINGUISHING THE AFT CABIN DOOR ANNUNCIATOR. THE F/O CHKED ALL THE OTHER LOCKING VERIFICATION METHODS AND EVERYTHING WAS OPERATING AS IT SHOULD HAVE. BOTH OF US WERE CONFIDENT THE SYS WAS FUNCTIONING NORMALLY. AFTER RECONFIGURING THE WTS AND GETTING A NEW RELEASE WE DEPARTED FOR DEN AND NEVER HAD A PROB WITH THE AFT CABIN DOOR OR ITS ANNUNCIATOR THE REST OF THE DAY.

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.