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|
Attributes | |
ACN | 560801 |
Time | |
Date | 200209 |
Day | Sat |
Local Time Of Day | 1201 To 1800 |
Place | |
Locale Reference | airport : fll.airport |
State Reference | FL |
Altitude | agl single value : 0 |
Environment | |
Flight Conditions | VMC |
Light | Daylight |
Aircraft 1 | |
Operator | common carrier : air taxi |
Make Model Name | Mallard |
Operating Under FAR Part | Part 135 |
Flight Phase | landing : roll |
Flight Plan | VFR |
Person 1 | |
Affiliation | company : air taxi |
Function | flight crew : captain oversight : pic |
Qualification | pilot : multi engine pilot : instrument pilot : atp |
Experience | flight time last 90 days : 300 flight time total : 3000 flight time type : 400 |
ASRS Report | 560801 |
Person 2 | |
Affiliation | company : air taxi |
Function | flight crew : first officer |
Events | |
Anomaly | cabin event other excursion : runway ground encounters other |
Independent Detector | aircraft equipment other aircraft equipment : gear down indicator other flight crewa other flight crewb |
Resolutory Action | none taken : anomaly accepted |
Consequence | faa : reviewed incident with flight crew other other |
Supplementary | |
Problem Areas | Aircraft |
Primary Problem | Aircraft |
Narrative:
Out of ZZZ, a master warning was observed, indicating hydraulic quantity low with associated drop in pressure. The system was isolated by switching system to inertial doors. Normal flight conditions were encountered. Upon descent, the descent before landing checklist was executed with no gear action. The emergency gear extension checklist was performed, with no result. Immediately executed the emergency gear 'extension only' checklist. As a result, the gear extended and was indicating down. Pilots then requested and performed a 'fly-by' of the control tower in order to visually confirm nose gear down, which was verified by ATC. Main gear was confirmed down visually by both pilots. Nose gear was confirmed down visually by baggage compartment mechanical indicator. Passenger were then briefed of a possible rough landing and advised to tightly fasten seatbelts. Note: hydraulic hand pump was constantly pumped by copilot in order to retain positive pressure. A no-flap smooth landing was made along runway centerline, with both main gear contacting first. Note: main gear held, read 'no collapse.' when nose gear contacted ground, it collapsed. The nose of airplane was immediately raised aerodynamically with the elevator. Immediately, aircraft started and listing to the left until contact was made with the ground by the fuselage. Aircraft then proceeded to lift off of runway and skidded to a halt. Engine and all system were then shut down. Passenger were immediately asked of their conditions, to which 'all ok' and 'thumbs up' were given. An orderly evacuate/evacuation was initiated by copilot, with airport crash fire rescue equipment assisting almost immediately. All persons evacuate/evacuationed safely without incident, with each passenger briefly interviewed and responding to be in good condition. Aircraft was then secured by FAA and all other agencies. Callback conversation with reporter revealed the following information: reporter stated that after isolating the hydraulic system he elected to continue to destination, as he felt that it was safer to land where there was emergency equipment to assist in the event of a fire/evacuate/evacuation. Additionally, he was not sure of the position of his landing gear and a water landing with the gear extended is very dangerous. The aircraft sustained minor damage and no injuries were sustained during the incident.
Original NASA ASRS Text
Title: G73T MALLARD FLC HAS NOSE WHEEL COLLAPSE ON LNDG AT FLL.
Narrative: OUT OF ZZZ, A MASTER WARNING WAS OBSERVED, INDICATING HYD QUANTITY LOW WITH ASSOCIATED DROP IN PRESSURE. THE SYS WAS ISOLATED BY SWITCHING SYS TO INERTIAL DOORS. NORMAL FLT CONDITIONS WERE ENCOUNTERED. UPON DSCNT, THE DSCNT BEFORE LNDG CHKLIST WAS EXECUTED WITH NO GEAR ACTION. THE EMER GEAR EXTENSION CHKLIST WAS PERFORMED, WITH NO RESULT. IMMEDIATELY EXECUTED THE EMER GEAR 'EXTENSION ONLY' CHKLIST. AS A RESULT, THE GEAR EXTENDED AND WAS INDICATING DOWN. PLTS THEN REQUESTED AND PERFORMED A 'FLY-BY' OF THE CTL TWR IN ORDER TO VISUALLY CONFIRM NOSE GEAR DOWN, WHICH WAS VERIFIED BY ATC. MAIN GEAR WAS CONFIRMED DOWN VISUALLY BY BOTH PLTS. NOSE GEAR WAS CONFIRMED DOWN VISUALLY BY BAGGAGE COMPARTMENT MECHANICAL INDICATOR. PAX WERE THEN BRIEFED OF A POSSIBLE ROUGH LNDG AND ADVISED TO TIGHTLY FASTEN SEATBELTS. NOTE: HYD HAND PUMP WAS CONSTANTLY PUMPED BY COPLT IN ORDER TO RETAIN POSITIVE PRESSURE. A NO-FLAP SMOOTH LNDG WAS MADE ALONG RWY CTRLINE, WITH BOTH MAIN GEAR CONTACTING FIRST. NOTE: MAIN GEAR HELD, READ 'NO COLLAPSE.' WHEN NOSE GEAR CONTACTED GND, IT COLLAPSED. THE NOSE OF AIRPLANE WAS IMMEDIATELY RAISED AERODYNAMICALLY WITH THE ELEVATOR. IMMEDIATELY, ACFT STARTED AND LISTING TO THE L UNTIL CONTACT WAS MADE WITH THE GND BY THE FUSELAGE. ACFT THEN PROCEEDED TO LIFT OFF OF RWY AND SKIDDED TO A HALT. ENG AND ALL SYS WERE THEN SHUT DOWN. PAX WERE IMMEDIATELY ASKED OF THEIR CONDITIONS, TO WHICH 'ALL OK' AND 'THUMBS UP' WERE GIVEN. AN ORDERLY EVAC WAS INITIATED BY COPLT, WITH ARPT CFR ASSISTING ALMOST IMMEDIATELY. ALL PERSONS EVACED SAFELY WITHOUT INCIDENT, WITH EACH PAX BRIEFLY INTERVIEWED AND RESPONDING TO BE IN GOOD CONDITION. ACFT WAS THEN SECURED BY FAA AND ALL OTHER AGENCIES. CALLBACK CONVERSATION WITH RPTR REVEALED THE FOLLOWING INFO: RPTR STATED THAT AFTER ISOLATING THE HYD SYS HE ELECTED TO CONTINUE TO DEST, AS HE FELT THAT IT WAS SAFER TO LAND WHERE THERE WAS EMER EQUIP TO ASSIST IN THE EVENT OF A FIRE/EVAC. ADDITIONALLY, HE WAS NOT SURE OF THE POS OF HIS LNDG GEAR AND A WATER LNDG WITH THE GEAR EXTENDED IS VERY DANGEROUS. THE ACFT SUSTAINED MINOR DAMAGE AND NO INJURIES WERE SUSTAINED DURING THE INCIDENT.
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.