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Air carrier mdt unable to retract landing gear after takeoff from eri due undetected open alternate gear release door. Returns for landing.
| Attributes | |
| ACN | 158665 |
| Time | |
| Date | 199009 |
| Day | Sun |
| Local Time Of Day | 0001 To 0600 |
| Place | |
| Locale Reference | airport : eri |
| State Reference | PA |
| Altitude | agl bound lower : 0 agl bound upper : 150 |
| Environment | |
| Flight Conditions | Marginal |
| Light | Dawn |
| Aircraft 1 | |
| Controlling Facilities | tower : eri |
| Operator | common carrier : air carrier |
| Make Model Name | Medium Transport |
| Flight Phase | climbout : initial ground : preflight other |
| Flight Plan | IFR |
| Person 1 | |
| Affiliation | company : air carrier |
| Function | flight crew : captain oversight : pic |
| Qualification | pilot : atp |
| Experience | flight time last 90 days : 230 flight time total : 17000 flight time type : 130 |
| ASRS Report | 158665 |
| Person 2 | |
| Affiliation | company : air carrier |
| Function | flight crew : first officer |
| Qualification | pilot : instrument pilot : commercial |
| Events | |
| Anomaly | aircraft equipment problem : less severe |
| Independent Detector | other flight crewa |
| Resolutory Action | none taken : unable |
| Consequence | Other |
| Supplementary | |
| Primary Problem | Flight Crew Human Performance |
| Air Traffic Incident | Pilot Deviation |
Narrative:
On takeoff from eri, we could not retract landing gear. We returned for a landing and discovered the alternate gear release door was open just enough to inhibit gear retraction but closed enough to appear closed in the dim cockpit. I pushed the altitude release door fully closed and test flew the aircraft. The gear operated normally. Being new to the mdt, I was used to seeing the alternate gear release door either fully closed or open, not halfway closed. I recommend that the captain or first officer push on the altitude release and extend door when doing the checklist to prevent the situation from recurring.
Original NASA ASRS Text
Title: ACR MDT UNABLE TO RETRACT LNDG GEAR AFTER TKOF FROM ERI DUE UNDETECTED OPEN ALTERNATE GEAR RELEASE DOOR. RETURNS FOR LNDG.
Narrative: ON TKOF FROM ERI, WE COULD NOT RETRACT LNDG GEAR. WE RETURNED FOR A LNDG AND DISCOVERED THE ALTERNATE GEAR RELEASE DOOR WAS OPEN JUST ENOUGH TO INHIBIT GEAR RETRACTION BUT CLOSED ENOUGH TO APPEAR CLOSED IN THE DIM COCKPIT. I PUSHED THE ALT RELEASE DOOR FULLY CLOSED AND TEST FLEW THE ACFT. THE GEAR OPERATED NORMALLY. BEING NEW TO THE MDT, I WAS USED TO SEEING THE ALTERNATE GEAR RELEASE DOOR EITHER FULLY CLOSED OR OPEN, NOT HALFWAY CLOSED. I RECOMMEND THAT THE CAPT OR F/O PUSH ON THE ALT RELEASE AND EXTEND DOOR WHEN DOING THE CHKLIST TO PREVENT THE SITUATION FROM RECURRING.
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.