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A fokker 100 on final approach has nose gear unsafe light. On inspection by other aircraft nose gear appears down. On landing and rollout nose gear operation ok. Gear pinned by maintenance and at start of towing gear collapses.
| Attributes | |
| ACN | 526295 |
| Time | |
| Date | 200110 |
| Day | Wed |
| Local Time Of Day | 0601 To 1200 |
| Place | |
| Locale Reference | airport : zzz.airport |
| State Reference | US |
| Altitude | agl single value : 1500 |
| Environment | |
| Light | Daylight |
| Aircraft 1 | |
| Controlling Facilities | tower : zzz.tower |
| Operator | common carrier : air carrier |
| Make Model Name | Fokker 100 |
| Operating Under FAR Part | Part 121 |
| Flight Phase | descent : approach landing : roll |
| Flight Plan | IFR |
| Aircraft 2 | |
| Controlling Facilities | tower : zzz.tower |
| Make Model Name | King Air 100 A/B |
| Flight Phase | descent : approach |
| Route In Use | approach : visual |
| Person 1 | |
| Affiliation | company : air carrier |
| Function | flight crew : captain oversight : pic |
| Qualification | pilot : atp |
| ASRS Report | 526295 |
| Person 2 | |
| Affiliation | company : air carrier |
| Function | flight crew : first officer |
| Events | |
| Anomaly | aircraft equipment problem : critical ground encounters other |
| Independent Detector | aircraft equipment other aircraft equipment : nose gear unsafe light other flight crewa other flight crewb |
| Resolutory Action | flight crew : landed in emergency condition |
| Consequence | other other |
| Factors | |
| Maintenance | performance deficiency : installation performance deficiency : inspection |
| Supplementary | |
| Problem Areas | Maintenance Human Performance Flight Crew Human Performance Chart Or Publication Aircraft |
| Primary Problem | Aircraft |
Narrative:
Nose gear unsafe on final approach to runway at ZZZ. Went around and recycled gear per procedures to no avail. Accomplished all other procedures in accordance with abnormals and had flight attendants brief for ground evacuate/evacuation. ATC had king air approach for visual check and nose gear appeared down. Landing and rollout on runway 13R was uneventful. Maintenance responded quickly, pinned gear, and prepared for tow-in. I asked for numerous clarifications about strapping the nose gear prior to towing. Answer of all concerned was that it was not required in accordance with all maintenance manuals and procedures. Upon releasing the brakes and beginning tow, the nose gear collapsed. Shut down both engines, elected to keep passenger on board. Finally deplaned through forward passenger door using pickup truck as stairs. Secured aircraft. Callback conversation with reporter revealed the following information: the reporter stated he would not answer any questions relating to this incident. The reporter said that pinning the nose gear on a fokker 100 is no guarantee the gear will not collapse.
Original NASA ASRS Text
Title: A FOKKER 100 ON FINAL APCH HAS NOSE GEAR UNSAFE LIGHT. ON INSPECTION BY OTHER ACFT NOSE GEAR APPEARS DOWN. ON LNDG AND ROLLOUT NOSE GEAR OP OK. GEAR PINNED BY MAINT AND AT START OF TOWING GEAR COLLAPSES.
Narrative: NOSE GEAR UNSAFE ON FINAL APCH TO RWY AT ZZZ. WENT AROUND AND RECYCLED GEAR PER PROCS TO NO AVAIL. ACCOMPLISHED ALL OTHER PROCS IN ACCORDANCE WITH ABNORMALS AND HAD FLT ATTENDANTS BRIEF FOR GND EVAC. ATC HAD KING AIR APCH FOR VISUAL CHK AND NOSE GEAR APPEARED DOWN. LNDG AND ROLLOUT ON RWY 13R WAS UNEVENTFUL. MAINT RESPONDED QUICKLY, PINNED GEAR, AND PREPARED FOR TOW-IN. I ASKED FOR NUMEROUS CLARIFICATIONS ABOUT STRAPPING THE NOSE GEAR PRIOR TO TOWING. ANSWER OF ALL CONCERNED WAS THAT IT WAS NOT REQUIRED IN ACCORDANCE WITH ALL MAINT MANUALS AND PROCS. UPON RELEASING THE BRAKES AND BEGINNING TOW, THE NOSE GEAR COLLAPSED. SHUT DOWN BOTH ENGS, ELECTED TO KEEP PAX ON BOARD. FINALLY DEPLANED THROUGH FORWARD PAX DOOR USING PICKUP TRUCK AS STAIRS. SECURED ACFT. CALLBACK CONVERSATION WITH RPTR REVEALED THE FOLLOWING INFO: THE RPTR STATED HE WOULD NOT ANSWER ANY QUESTIONS RELATING TO THIS INCIDENT. THE RPTR SAID THAT PINNING THE NOSE GEAR ON A FOKKER 100 IS NO GUARANTEE THE GEAR WILL NOT COLLAPSE.
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.