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Dhc-6 pilot went off the side of a 35 ft wide gravel runway, 2100 ft long. The runway had nil braking and there was a 16 KT direct crosswind with stronger gusts.
| Attributes | |
| ACN | 572061 |
| Time | |
| Date | 200301 |
| Day | Thu |
| Local Time Of Day | 0601 To 1200 |
| Place | |
| Locale Reference | airport : kpn.airport |
| State Reference | AK |
| Altitude | agl single value : 0 |
| Environment | |
| Flight Conditions | VMC |
| Weather Elements | Ice |
| Light | Dawn |
| Aircraft 1 | |
| Operator | common carrier : air taxi |
| Make Model Name | Twin Otter DHC-6 |
| Operating Under FAR Part | Part 135 |
| Flight Phase | landing : roll |
| Person 1 | |
| Affiliation | company : air taxi |
| Function | flight crew : single pilot |
| Qualification | pilot : atp |
| Experience | flight time last 90 days : 120 flight time total : 4200 flight time type : 2000 |
| ASRS Report | 572061 |
| Events | |
| Anomaly | excursion : runway inflight encounter : weather inflight encounter other non adherence : published procedure other anomaly other anomaly other |
| Independent Detector | other flight crewa |
| Resolutory Action | none taken : detected after the fact |
| Supplementary | |
| Problem Areas | Weather Flight Crew Human Performance Company Airport |
| Primary Problem | Flight Crew Human Performance |
Narrative:
Upon landing rollout at kipnuk, ak, the aircraft started to drift left. Nosewheel steering/differential beta/braking had no effect. The left main gear caught the soft snow on the left of the runway and pulled the aircraft into the ditch. The aircraft came to rest pointing northeast. Aircraft was shutdown and passenger were evacuate/evacuationed. No passenger injuries were reported and a company aircraft was notified via radio. Runway condition was that of solid ice with frost on the surface. Last reported wind was 050 degrees at 16 KTS but was gusting higher.
Original NASA ASRS Text
Title: DHC-6 PLT WENT OFF THE SIDE OF A 35 FT WIDE GRAVEL RWY, 2100 FT LONG. THE RWY HAD NIL BRAKING AND THERE WAS A 16 KT DIRECT XWIND WITH STRONGER GUSTS.
Narrative: UPON LNDG ROLLOUT AT KIPNUK, AK, THE ACFT STARTED TO DRIFT L. NOSEWHEEL STEERING/DIFFERENTIAL BETA/BRAKING HAD NO EFFECT. THE L MAIN GEAR CAUGHT THE SOFT SNOW ON THE L OF THE RWY AND PULLED THE ACFT INTO THE DITCH. THE ACFT CAME TO REST POINTING NE. ACFT WAS SHUTDOWN AND PAX WERE EVACED. NO PAX INJURIES WERE RPTED AND A COMPANY ACFT WAS NOTIFIED VIA RADIO. RWY CONDITION WAS THAT OF SOLID ICE WITH FROST ON THE SURFACE. LAST RPTED WIND WAS 050 DEGS AT 16 KTS BUT WAS GUSTING HIGHER.
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.