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A widebody transport aircraft after takeoff could not confirm position of left main landing gear. Declared emergency and landed.
| Attributes | |
| ACN | 349225 |
| Time | |
| Date | 199609 |
| Day | Mon |
| Local Time Of Day | 0001 To 0600 |
| Place | |
| Locale Reference | airport : hnl |
| State Reference | HI |
| Altitude | agl bound lower : 0 agl bound upper : 2000 |
| Environment | |
| Flight Conditions | VMC |
| Light | Night |
| Aircraft 1 | |
| Controlling Facilities | tower : hnl tower : sat |
| Operator | common carrier : air carrier |
| Make Model Name | Commercial Fixed Wing |
| Operating Under FAR Part | Part 121 |
| Navigation In Use | Other Other |
| Flight Phase | climbout : initial other other |
| Route In Use | departure other |
| Flight Plan | IFR |
| Person 1 | |
| Affiliation | company : air carrier |
| Function | flight crew : captain oversight : pic |
| Qualification | pilot : atp pilot : flight engineer |
| Experience | flight time last 90 days : 150 flight time total : 6000 flight time type : 5000 |
| ASRS Report | 349225 |
| Person 2 | |
| Affiliation | company : air carrier |
| Function | flight crew : first officer |
| Qualification | pilot : instrument pilot : commercial |
| Events | |
| Anomaly | aircraft equipment problem : critical other anomaly other |
| Independent Detector | other flight crewa other other : unspecified cockpit |
| Resolutory Action | flight crew : declared emergency other |
| Consequence | Other |
| Supplementary | |
| Primary Problem | Aircraft |
Narrative:
After gear retraction on takeoff, cockpit indications could not confirm the position of the left main gear. I cycled the gear several times while performing the appropriate checklists. There was no change. After consulting with flight control, I decided to return to hnl. Due to the uncertain position of the left main landing gear, I asked for the equipment to be standing by. After performing a low pass so that the tower could assist in visually determining the position of the gear, a normal approach and landing was made. After landing, a failed bungee (downlock release) actuator was found to be the failed gear component.
Original NASA ASRS Text
Title: A WDB ACFT AFTER TKOF COULD NOT CONFIRM POS OF L MAIN LNDG GEAR. DECLARED EMER AND LANDED.
Narrative: AFTER GEAR RETRACTION ON TKOF, COCKPIT INDICATIONS COULD NOT CONFIRM THE POS OF THE L MAIN GEAR. I CYCLED THE GEAR SEVERAL TIMES WHILE PERFORMING THE APPROPRIATE CHKLISTS. THERE WAS NO CHANGE. AFTER CONSULTING WITH FLT CTL, I DECIDED TO RETURN TO HNL. DUE TO THE UNCERTAIN POS OF THE L MAIN LNDG GEAR, I ASKED FOR THE EQUIP TO BE STANDING BY. AFTER PERFORMING A LOW PASS SO THAT THE TWR COULD ASSIST IN VISUALLY DETERMINING THE POS OF THE GEAR, A NORMAL APCH AND LNDG WAS MADE. AFTER LNDG, A FAILED BUNGEE (DOWNLOCK RELEASE) ACTUATOR WAS FOUND TO BE THE FAILED GEAR COMPONENT.
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.