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Light transport cargo aircraft has nose gear unsafe light activate just after takeoff. Continued with gear extended.
| Attributes | |
| ACN | 269208 |
| Time | |
| Date | 199404 |
| Day | Tue |
| Local Time Of Day | 0601 To 1200 |
| Place | |
| Locale Reference | atc facility : pdx airport : bfi |
| State Reference | OR |
| Altitude | msl bound lower : 200 msl bound upper : 20000 |
| Environment | |
| Flight Conditions | VMC |
| Light | Daylight |
| Aircraft 1 | |
| Controlling Facilities | tracon : pdx tower : lal |
| Operator | common carrier : air taxi |
| Make Model Name | Learjet 35 |
| Operating Under FAR Part | Part 91 |
| Flight Phase | climbout : initial cruise other landing other |
| Route In Use | enroute : direct |
| Flight Plan | IFR |
| Aircraft 2 | |
| Operator | common carrier : air carrier |
| Make Model Name | B737 Undifferentiated or Other Model |
| Operating Under FAR Part | Part 121 |
| Flight Phase | ground : holding |
| Flight Plan | IFR |
| Person 1 | |
| Affiliation | Other |
| Function | flight crew : captain oversight : pic |
| Qualification | pilot : instrument pilot : commercial pilot : atp |
| Experience | flight time last 90 days : 290 flight time total : 8800 flight time type : 6200 |
| ASRS Report | 269208 |
| Person 2 | |
| Affiliation | Other |
| Function | flight crew : first officer |
| Qualification | pilot : instrument pilot : commercial |
| Events | |
| Anomaly | aircraft equipment problem : critical |
| Independent Detector | aircraft equipment other aircraft equipment : unspecified other flight crewa |
| Resolutory Action | none taken : anomaly accepted |
| Consequence | other |
| Supplementary | |
| Primary Problem | Aircraft |
| Air Traffic Incident | other |
Narrative:
We had just taken off from pdx 28R bound for bfi (seattle), when we noticed first by sound and then nose gear unsafe light stayed on. I immediately suspected problems with the nose gear and called for gear down. We had then normal 3 green down and locked. However, I decided to leave gear down to my destination, bfi, approximately, 130 NM and 30 min flying time. I advised ATC about our potential problem and told them about my reduced speed at cruise level (200 KIAS) at 20000 ft. When we contacted boeing field tower, we advised them about nose gear and asked them to look for anything unusual. They said all 3 gears were down and looked normal. This was confirmed by a B-737 crew ready to depart 13R. We slowed the aircraft to minimum speed and after touch down, we kept the nose gear up as long as possible. When we were about to lower the nose gear, tower said something about the nose wheel not being centered. By then, the nose gear wheel touched down and the airplane immediately started to turn left. I used maximum braking, with more opposite right brake to try not to go far off centerline. Aircraft came to a complete stop between runway edge lights and centerline. Nose steering was not working and I decided to shut down both engines and go outside the aircraft to inspect the nose gear, and then we called for a tow truck. The tower closed the runway for about 15-20 min. The reason the gear wouldn't come up was because the nose gear strut had collapsed (deflated).
Original NASA ASRS Text
Title: LTT CARGO ACFT HAS NOSE GEAR UNSAFE LIGHT ACTIVATE JUST AFTER TKOF. CONTINUED WITH GEAR EXTENDED.
Narrative: WE HAD JUST TAKEN OFF FROM PDX 28R BOUND FOR BFI (SEATTLE), WHEN WE NOTICED FIRST BY SOUND AND THEN NOSE GEAR UNSAFE LIGHT STAYED ON. I IMMEDIATELY SUSPECTED PROBS WITH THE NOSE GEAR AND CALLED FOR GEAR DOWN. WE HAD THEN NORMAL 3 GREEN DOWN AND LOCKED. HOWEVER, I DECIDED TO LEAVE GEAR DOWN TO MY DEST, BFI, APPROX, 130 NM AND 30 MIN FLYING TIME. I ADVISED ATC ABOUT OUR POTENTIAL PROB AND TOLD THEM ABOUT MY REDUCED SPD AT CRUISE LEVEL (200 KIAS) AT 20000 FT. WHEN WE CONTACTED BOEING FIELD TWR, WE ADVISED THEM ABOUT NOSE GEAR AND ASKED THEM TO LOOK FOR ANYTHING UNUSUAL. THEY SAID ALL 3 GEARS WERE DOWN AND LOOKED NORMAL. THIS WAS CONFIRMED BY A B-737 CREW READY TO DEPART 13R. WE SLOWED THE ACFT TO MINIMUM SPD AND AFTER TOUCH DOWN, WE KEPT THE NOSE GEAR UP AS LONG AS POSSIBLE. WHEN WE WERE ABOUT TO LOWER THE NOSE GEAR, TWR SAID SOMETHING ABOUT THE NOSE WHEEL NOT BEING CTRED. BY THEN, THE NOSE GEAR WHEEL TOUCHED DOWN AND THE AIRPLANE IMMEDIATELY STARTED TO TURN L. I USED MAX BRAKING, WITH MORE OPPOSITE R BRAKE TO TRY NOT TO GO FAR OFF CTRLINE. ACFT CAME TO A COMPLETE STOP BTWN RWY EDGE LIGHTS AND CTRLINE. NOSE STEERING WAS NOT WORKING AND I DECIDED TO SHUT DOWN BOTH ENGS AND GO OUTSIDE THE ACFT TO INSPECT THE NOSE GEAR, AND THEN WE CALLED FOR A TOW TRUCK. THE TWR CLOSED THE RWY FOR ABOUT 15-20 MIN. THE REASON THE GEAR WOULDN'T COME UP WAS BECAUSE THE NOSE GEAR STRUT HAD COLLAPSED (DEFLATED).
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.