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DC10-40 with unsafe gear indication lands sfo after dumping fuel and preparation for possible passenger evacuate/evacuation.
| Attributes | |
| ACN | 446843 |
| Time | |
| Date | 199908 |
| Day | Fri |
| Local Time Of Day | 0601 To 1200 |
| Place | |
| Locale Reference | airport : sfo.airport |
| State Reference | CA |
| Altitude | msl bound lower : 2000 msl bound upper : 3000 |
| Environment | |
| Flight Conditions | VMC |
| Light | Daylight |
| Aircraft 1 | |
| Controlling Facilities | tracon : o90.tracon |
| Operator | common carrier : air carrier |
| Make Model Name | DC-10 40 |
| Operating Under FAR Part | Part 121 |
| Navigation In Use | Other other vortac |
| Flight Phase | descent : approach landing : missed approach |
| Route In Use | approach : instrument precision arrival : on vectors |
| Flight Plan | IFR |
| Person 1 | |
| Affiliation | company : air carrier |
| Function | flight crew : first officer |
| Qualification | pilot : atp |
| Experience | flight time last 90 days : 160 flight time total : 15000 flight time type : 8000 |
| ASRS Report | 446843 |
| Person 2 | |
| Affiliation | company : air carrier |
| Function | flight crew : captain oversight : pic |
| Qualification | pilot : atp |
| Events | |
| Anomaly | aircraft equipment problem : critical other anomaly other |
| Independent Detector | other flight crewa |
| Resolutory Action | controller : issued new clearance flight crew : declared emergency flight crew : executed missed approach |
| Consequence | other |
| Supplementary | |
| Problem Areas | Aircraft |
| Primary Problem | Aircraft |
Narrative:
On approach to sfo, lowered gear early. Right main gear indicated unsafe. Recycled gear, remained unsafe. Went missed approach and requested vectors to holding to go through emergency procedures. Vectored offshore to dump fuel to reduce weight and fuel load in case of gear collapse. Briefed flight attendants for possible gear collapse on landing and declared an emergency. Mechanical indicators showed gear down and locked. Made 50 degree flap landing on runway 28L. Stopped and had gear pinned by maintenance personnel. Flight attendants did an excellent job.
Original NASA ASRS Text
Title: DC10-40 WITH UNSAFE GEAR INDICATION LANDS SFO AFTER DUMPING FUEL AND PREPARATION FOR POSSIBLE PAX EVAC.
Narrative: ON APCH TO SFO, LOWERED GEAR EARLY. R MAIN GEAR INDICATED UNSAFE. RECYCLED GEAR, REMAINED UNSAFE. WENT MISSED APCH AND REQUESTED VECTORS TO HOLDING TO GO THROUGH EMER PROCS. VECTORED OFFSHORE TO DUMP FUEL TO REDUCE WT AND FUEL LOAD IN CASE OF GEAR COLLAPSE. BRIEFED FLT ATTENDANTS FOR POSSIBLE GEAR COLLAPSE ON LNDG AND DECLARED AN EMER. MECHANICAL INDICATORS SHOWED GEAR DOWN AND LOCKED. MADE 50 DEG FLAP LNDG ON RWY 28L. STOPPED AND HAD GEAR PINNED BY MAINT PERSONNEL. FLT ATTENDANTS DID AN EXCELLENT JOB.
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.