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On rollout after landing, large transport had severe shimmy. Nose wheel steering malfunctioned. Aircraft stopped on runway. Called for assistance with passengers and aircraft.
| Attributes | |
| ACN | 167316 |
| Time | |
| Date | 199101 |
| Day | Sat |
| Local Time Of Day | 1801 To 2400 |
| Place | |
| Locale Reference | airport : ord |
| State Reference | IL |
| Altitude | agl bound lower : 0 agl bound upper : 0 |
| Environment | |
| Flight Conditions | VMC |
| Light | Night |
| Aircraft 1 | |
| Controlling Facilities | tower : dfw |
| Operator | common carrier : air carrier |
| Make Model Name | Large Transport, Low Wing, 3 Turbojet Eng |
| Flight Phase | landing other |
| Flight Plan | IFR |
| Person 1 | |
| Affiliation | company : air carrier |
| Function | flight crew : first officer |
| Qualification | pilot : atp pilot : instrument pilot : commercial pilot : flight engineer |
| Experience | flight time last 90 days : 200 flight time total : 6000 flight time type : 600 |
| ASRS Report | 167316 |
| Person 2 | |
| Affiliation | company : air carrier |
| Function | flight crew : captain oversight : pic |
| Qualification | pilot : atp pilot : commercial pilot : instrument |
| Events | |
| Anomaly | aircraft equipment problem : critical |
| Independent Detector | other flight crewa |
| Resolutory Action | flight crew : overcame equipment problem other |
| Consequence | Other |
| Supplementary | |
| Primary Problem | Aircraft |
| Air Traffic Incident | other |
Narrative:
Ewr to ord, normal approach runway 22R ILS, navigation in use. WX: 2800' broken, 4500' scattered 10, winds 250 degrees at 9 KTS. Flare was normal and main T/D smooth, minor slip. At 110 KTS on rollout, severe vibration occurred and continued to a stop. Captain took control of aircraft at 80 KTS approximately and brought to a stop on the runway. Unable to use nose steering. Tower was notified immediately and company next through ramp control. Crew then considered any necessary checklists and whether evacuate/evacuation was necessary. Then reconsidered the event. Checked all cockpit indications. Checked on passenger and F/a's. Captain made a passenger announcement. Crew then referred to flight manual. Aircraft was then towed to gate. Since all indication point to a structural/mechanical failure of scissor pin, I know of no further action which I or the flight crew could have taken to avoid this mishap. All flight crew procedures were conducted by the book.
Original NASA ASRS Text
Title: ON ROLLOUT AFTER LNDG, LGT HAD SEVERE SHIMMY. NOSE WHEEL STEERING MALFUNCTIONED. ACFT STOPPED ON RWY. CALLED FOR ASSISTANCE WITH PASSENGERS AND ACFT.
Narrative: EWR TO ORD, NORMAL APCH RWY 22R ILS, NAV IN USE. WX: 2800' BROKEN, 4500' SCATTERED 10, WINDS 250 DEGS AT 9 KTS. FLARE WAS NORMAL AND MAIN T/D SMOOTH, MINOR SLIP. AT 110 KTS ON ROLLOUT, SEVERE VIBRATION OCCURRED AND CONTINUED TO A STOP. CAPT TOOK CTL OF ACFT AT 80 KTS APPROX AND BROUGHT TO A STOP ON THE RWY. UNABLE TO USE NOSE STEERING. TWR WAS NOTIFIED IMMEDIATELY AND COMPANY NEXT THROUGH RAMP CTL. CREW THEN CONSIDERED ANY NECESSARY CHKLISTS AND WHETHER EVAC WAS NECESSARY. THEN RECONSIDERED THE EVENT. CHKED ALL COCKPIT INDICATIONS. CHKED ON PAX AND F/A'S. CAPT MADE A PAX ANNOUNCEMENT. CREW THEN REFERRED TO FLT MANUAL. ACFT WAS THEN TOWED TO GATE. SINCE ALL INDICATION POINT TO A STRUCTURAL/MECHANICAL FAILURE OF SCISSOR PIN, I KNOW OF NO FURTHER ACTION WHICH I OR THE FLT CREW COULD HAVE TAKEN TO AVOID THIS MISHAP. ALL FLT CREW PROCS WERE CONDUCTED BY THE BOOK.
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.