Narrative:

During takeoff the landing gear retracted normally when commanded to the retract position. All three gear door amber lights remained illuminated. The motor could be heard running as we completed the climb checklist. To stop the motor from running as we continued to climb; I re-selected the gear to the extended position. The gear extended normally and all amber door lights extinguished. The QRH was then consulted and had two separate; but similar procedures for the condition at hand; recommending a manual extension; however; and the gear had already been extended using normal procedures and a manual extension was not necessary. We were instructed via radio from operations to divert per dispatcher's instructions. An ACARS message was received from dispatch authorizing the diversion. The flight landed safely without further incident.

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Original NASA ASRS Text

Title: A Q400 flight crew diverted to another airport when the landing gear doors failed to close after gear retraction.

Narrative: During takeoff the landing gear retracted normally when commanded to the retract position. All three gear door amber lights remained illuminated. The motor could be heard running as we completed the climb checklist. To stop the motor from running as we continued to climb; I re-selected the gear to the extended position. The gear extended normally and all amber door lights extinguished. The QRH was then consulted and had two separate; but similar procedures for the condition at hand; recommending a manual extension; however; and the gear had already been extended using normal procedures and a manual extension was not necessary. We were instructed via radio from Operations to divert per Dispatcher's instructions. An ACARS message was received from Dispatch authorizing the diversion. The flight landed safely without further incident.

Data retrieved from NASA's ASRS site as of April 2012 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.