Narrative:

Upon initial approach I selected the landing gear control lever to the down position. At this time; the gear attempted to lower but it quickly failed to. Based on what I heard audibly in the cockpit; it sounded as if the pump failed. I attempted to recycle the gear; but with no success. I briefly informed the tower of my problem and asked to proceed offshore on the north side of the island to run some checklists. I ran the emergency checklist for manual gear extension. At this time I made the decision to proceed to ZZZ1 rather than attempt a landing at ZZZ. Reasons being: longer runways; emergency equipment better in ZZZ1; as well as our maintenance staff is located in ZZZ1. While running the the checklist enroute to ZZZ1; I never received verification in the cockpit that the gear was down and locked. Now; the following act may be the only thing I would change if I were faced with the same emergency. I pulled the breakers on the far right panel for the gear lights and warning. The only reason I did this; is because after pulling the 'gear relay' breaker and pumping the gear down (items listed in the emergency checklist) for an extended amount of time necessary to receive the '3 green' indication; I never received the down and locked lights. Pulling the additional breakers and resetting them was my attempt to troubleshoot and hopefully get the 3 green down and locked lights. However; amid all of the handle pumping; crew updating; and radio calls; the breakers were left open. Had I left these breakers alone; it is possible that I would have eventually gotten the 3 green. It seemed like an undue amount of time manually pumping the gear down and never seeing the down lights. I would say that I spent about 20 minutes pumping the gear down before I made the decision to pull the extra breakers. I believe that I would have gotten the 3 green indication long before opening these breakers. My only regret is forgetting to reset them. Given the unknown nature of the gear; I declared an emergency with ATC and asked that he relay to ZZZ1 tower that I was requesting a flyby for them to verify my gear condition. After the flyby; the tower informed me that the gear did in fact look like it was down and cleared me to land. The touchdown was a success and we taxied to the ramp with no further issues.

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Original NASA ASRS Text

Title: BE90 pilot reports landing gear failing to extend during approach and attempts manual extension. After much pumping with no gear down indication the reporter elects to divert to an airport with a longer runway. The gear is reported down by the tower and a safe landing ensues. The landing gear indicating and warning circuit beakers were pulled during trouble shooting and not reset prior to landing.

Narrative: Upon initial approach I selected the landing gear control lever to the down position. At this time; the gear attempted to lower but it quickly failed to. Based on what I heard audibly in the cockpit; it sounded as if the pump failed. I attempted to recycle the gear; but with no success. I briefly informed the Tower of my problem and asked to proceed offshore on the north side of the island to run some checklists. I ran the emergency checklist for manual gear extension. At this time I made the decision to proceed to ZZZ1 rather than attempt a landing at ZZZ. Reasons being: Longer runways; emergency equipment better in ZZZ1; as well as our maintenance staff is located in ZZZ1. While running the the checklist enroute to ZZZ1; I never received verification in the cockpit that the gear was down and locked. Now; the following act may be the only thing I would change if I were faced with the same emergency. I pulled the breakers on the far right panel for the gear lights and warning. The only reason I did this; is because after pulling the 'Gear Relay' breaker and pumping the gear down (items listed in the emergency checklist) for an extended amount of time necessary to receive the '3 green' indication; I never received the down and locked lights. Pulling the additional breakers and resetting them was my attempt to troubleshoot and hopefully get the 3 green down and locked lights. However; amid all of the handle pumping; crew updating; and radio calls; the breakers were left open. Had I left these breakers alone; it is possible that I would have eventually gotten the 3 green. It seemed like an undue amount of time manually pumping the gear down and never seeing the down lights. I would say that I spent about 20 minutes pumping the gear down before I made the decision to pull the extra breakers. I believe that I would have gotten the 3 green indication long before opening these breakers. My only regret is forgetting to reset them. Given the unknown nature of the gear; I declared an emergency with ATC and asked that he relay to ZZZ1 Tower that I was requesting a flyby for them to verify my gear condition. After the flyby; the Tower informed me that the gear did in fact look like it was down and cleared me to land. The touchdown was a success and we taxied to the ramp with no further issues.

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.