Narrative:

After departure from grand canyon, az, on an air taxi flight, the aircraft entered IMC conditions with light to moderate turbulence. The passenger sitting in the copilot's seat vomitted west/O warning. The vomit was dispersed all over the cockpit as well as on my charts and approach plates. The odor from the vomit was extremely strong, causing me to gag and feel as if I were going to vomit also. The turbulent conditions made aircraft control difficult requiring a high degree of concentration. The vomit odor as well as my gaging reflex was making aircraft control extremely difficult. I asked la center to bring me around to return to gcn. They informed me the airport was below minimums. I asked for vectors to the nearest VFR airport with distance ETA. My approach plates were covered with vomit. I proceeded direct to kingman airport. After reaching VMC I cancelled IFR and descended to kingman airport to land. After landing I contacted my dispatcher informed them of the situation and cleaned out the aircraft. Contributory factors were: turbulence, passenger failure to use sick sack. Pilot performance affected by vomit odors and gagging reflex. Pilot decision to get to VFR conditions and land as soon as practicable for safety.

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Original NASA ASRS Text

Title: ATX PLT AFFECTED BY AIRSICK PAX ON IMC FLIGHT FROM GRAND CANYON TO KINGMAN.

Narrative: AFTER DEP FROM GRAND CANYON, AZ, ON AN AIR TAXI FLT, THE ACFT ENTERED IMC CONDITIONS WITH LIGHT TO MODERATE TURB. THE PAX SITTING IN THE COPLT'S SEAT VOMITTED W/O WARNING. THE VOMIT WAS DISPERSED ALL OVER THE COCKPIT AS WELL AS ON MY CHARTS AND APCH PLATES. THE ODOR FROM THE VOMIT WAS EXTREMELY STRONG, CAUSING ME TO GAG AND FEEL AS IF I WERE GOING TO VOMIT ALSO. THE TURBULENT CONDITIONS MADE ACFT CTL DIFFICULT REQUIRING A HIGH DEG OF CONCENTRATION. THE VOMIT ODOR AS WELL AS MY GAGING REFLEX WAS MAKING ACFT CTL EXTREMELY DIFFICULT. I ASKED LA CTR TO BRING ME AROUND TO RETURN TO GCN. THEY INFORMED ME THE ARPT WAS BELOW MINIMUMS. I ASKED FOR VECTORS TO THE NEAREST VFR ARPT WITH DISTANCE ETA. MY APCH PLATES WERE COVERED WITH VOMIT. I PROCEEDED DIRECT TO KINGMAN ARPT. AFTER REACHING VMC I CANCELLED IFR AND DSNDED TO KINGMAN ARPT TO LAND. AFTER LNDG I CONTACTED MY DISPATCHER INFORMED THEM OF THE SITUATION AND CLEANED OUT THE ACFT. CONTRIBUTORY FACTORS WERE: TURB, PAX FAILURE TO USE SICK SACK. PLT PERFORMANCE AFFECTED BY VOMIT ODORS AND GAGGING REFLEX. PLT DECISION TO GET TO VFR CONDITIONS AND LAND AS SOON AS PRACTICABLE FOR SAFETY.

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.