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A DHC8 at 1500 ft declared an emergency and diverted due to being unable to retract the landing gear. Checklist found alternate extension door open.
| Attributes | |
| ACN | 635393 |
| Time | |
| Date | 200410 |
| Day | Sat |
| Local Time Of Day | 1201 To 1800 |
| Place | |
| Locale Reference | airport : hnl.airport |
| State Reference | HI |
| Altitude | msl single value : 1500 |
| Environment | |
| Flight Conditions | VMC |
| Light | Daylight |
| Aircraft 1 | |
| Controlling Facilities | tracon : hnl.tracon |
| Operator | common carrier : air carrier |
| Make Model Name | Dash 8 Series Undifferentiated or Other Model |
| Operating Under FAR Part | Part 121 |
| Flight Phase | climbout : initial climbout : takeoff |
| Flight Plan | IFR |
| Person 1 | |
| Affiliation | company : air carrier |
| Function | flight crew : first officer |
| Qualification | pilot : instrument pilot : commercial pilot : cfi pilot : multi engine |
| Experience | flight time last 90 days : 210 flight time total : 2200 flight time type : 700 |
| ASRS Report | 635393 |
| Person 2 | |
| Affiliation | company : air carrier |
| Function | flight crew : captain oversight : pic |
| Events | |
| Anomaly | aircraft equipment problem : less severe maintenance problem : improper maintenance non adherence : far non adherence : published procedure |
| Independent Detector | aircraft equipment other aircraft equipment : alt. extension door other flight crewa other flight crewb |
| Resolutory Action | aircraft : equipment problem dissipated flight crew : diverted to another airport flight crew : overcame equipment problem flight crew : declared emergency |
| Consequence | other |
| Factors | |
| Maintenance | performance deficiency : inspection performance deficiency : non compliance with legal requirements |
| Supplementary | |
| Problem Areas | Flight Crew Human Performance Maintenance Human Performance Chart Or Publication Aircraft |
| Primary Problem | Maintenance Human Performance |
Narrative:
Air carrier flight departed at XA55 local and had a gear retraction malfunction. We declared an emergency and upon reading the checklist, we discovered landing alternate extension door above first officer was open, thus causing the gear to stay down. Only check of the landing alternate extension door is done on the first flight of the day checklist. This was our second departure of the day so it was closed for the first flight. My guess is that maintenance came in and opened it and forgot to close it. But it is not on the checklist so we didn't check it before the second departure.
Original NASA ASRS Text
Title: A DHC8 AT 1500 FT DECLARED AN EMER AND DIVERTED DUE TO BEING UNABLE TO RETRACT THE LNDG GEAR. CHKLIST FOUND ALTERNATE EXTENSION DOOR OPEN.
Narrative: ACR FLT DEPARTED AT XA55 LCL AND HAD A GEAR RETRACTION MALFUNCTION. WE DECLARED AN EMER AND UPON READING THE CHKLIST, WE DISCOVERED LNDG ALTERNATE EXTENSION DOOR ABOVE FO WAS OPEN, THUS CAUSING THE GEAR TO STAY DOWN. ONLY CHK OF THE LNDG ALTERNATE EXTENSION DOOR IS DONE ON THE FIRST FLT OF THE DAY CHKLIST. THIS WAS OUR SECOND DEP OF THE DAY SO IT WAS CLOSED FOR THE FIRST FLT. MY GUESS IS THAT MAINT CAME IN AND OPENED IT AND FORGOT TO CLOSE IT. BUT IT IS NOT ON THE CHKLIST SO WE DIDN'T CHK IT BEFORE THE SECOND DEP.
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.