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Landing gear of a beech 18 collapsed during landing rollout due to one of the retract chains braking in the landing gear retract mechanism.
| Attributes | |
| ACN | 338632 |
| Time | |
| Date | 199606 |
| Day | Sun |
| Local Time Of Day | 1801 To 2400 |
| Place | |
| Locale Reference | airport : chd |
| State Reference | AZ |
| Altitude | agl bound lower : 0 agl bound upper : 0 |
| Environment | |
| Flight Conditions | VMC |
| Light | Dusk |
| Aircraft 1 | |
| Operator | general aviation : personal |
| Make Model Name | Small Transport, Low Wing, 2 Recip Eng |
| Operating Under FAR Part | Part 91 |
| Flight Phase | landing other |
| Flight Plan | None |
| Person 1 | |
| Affiliation | Other |
| Function | flight crew : single pilot |
| Qualification | other other : other pilot : commercial pilot : flight engineer |
| Experience | flight time last 90 days : 50 flight time total : 15000 flight time type : 12 |
| ASRS Report | 338632 |
| Person 2 | |
| Affiliation | government : faa |
| Function | controller : local |
| Qualification | controller : non radar |
| Events | |
| Anomaly | aircraft equipment problem : critical other anomaly other |
| Independent Detector | other flight crewa |
| Resolutory Action | none taken : insufficient time other |
| Consequence | other Other |
| Supplementary | |
| Primary Problem | Aircraft |
| Air Traffic Incident | other |
Narrative:
Aircraft, beech 18, was purchased from an individual in wrangell, ak. The aircraft had been parked in severe WX conditions for the past 7 yrs. I inspected the aircraft and determined it to be in ferry condition, and noted that in the aircraft maintenance records. I was unable to retract the gear due to no jacks being available in wrangell. I test flew the aircraft and retracted and extended the landing gear prior to departing wrangell for seattle. The gear performed normally. 4 additional lndgs were accomplished with the gear system operating normally. The final landing was performed at the destination airport, chandler municipal airport, chandler, az. The landing gear was extended on downwind and appeared to operate normally. After touchdown and approximately 2000 ft of rollout, as I was lowering the tail and applying light braking, the left gear collapsed, followed in approximately 2 seconds by the right gear. The aircraft slid to a stop on the main wheels and the lower engine cowlings. The gear down green indicator light was on prior to landing. Upon examination, I found the left retract chain broken where it attaches to the slide mechanism. I can't be sure that I would have found any damage to the retract chain had I had the equipment to jack the aircraft.
Original NASA ASRS Text
Title: LNDG GEAR OF A BEECH 18 COLLAPSED DURING LNDG ROLLOUT DUE TO ONE OF THE RETRACT CHAINS BRAKING IN THE LNDG GEAR RETRACT MECHANISM.
Narrative: ACFT, BEECH 18, WAS PURCHASED FROM AN INDIVIDUAL IN WRANGELL, AK. THE ACFT HAD BEEN PARKED IN SEVERE WX CONDITIONS FOR THE PAST 7 YRS. I INSPECTED THE ACFT AND DETERMINED IT TO BE IN FERRY CONDITION, AND NOTED THAT IN THE ACFT MAINT RECORDS. I WAS UNABLE TO RETRACT THE GEAR DUE TO NO JACKS BEING AVAILABLE IN WRANGELL. I TEST FLEW THE ACFT AND RETRACTED AND EXTENDED THE LNDG GEAR PRIOR TO DEPARTING WRANGELL FOR SEATTLE. THE GEAR PERFORMED NORMALLY. 4 ADDITIONAL LNDGS WERE ACCOMPLISHED WITH THE GEAR SYS OPERATING NORMALLY. THE FINAL LNDG WAS PERFORMED AT THE DEST ARPT, CHANDLER MUNICIPAL ARPT, CHANDLER, AZ. THE LNDG GEAR WAS EXTENDED ON DOWNWIND AND APPEARED TO OPERATE NORMALLY. AFTER TOUCHDOWN AND APPROX 2000 FT OF ROLLOUT, AS I WAS LOWERING THE TAIL AND APPLYING LIGHT BRAKING, THE L GEAR COLLAPSED, FOLLOWED IN APPROX 2 SECONDS BY THE R GEAR. THE ACFT SLID TO A STOP ON THE MAIN WHEELS AND THE LOWER ENG COWLINGS. THE GEAR DOWN GREEN INDICATOR LIGHT WAS ON PRIOR TO LNDG. UPON EXAMINATION, I FOUND THE L RETRACT CHAIN BROKEN WHERE IT ATTACHES TO THE SLIDE MECHANISM. I CAN'T BE SURE THAT I WOULD HAVE FOUND ANY DAMAGE TO THE RETRACT CHAIN HAD I HAD THE EQUIP TO JACK THE ACFT.
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.