A kodiak 100 pilot flying with a friend became cold at 11;000 feet. The pilot instructed the passeng...

Narrative:

While in cruise at 11;000 feet just before passing a large airport my passenger in the right front seat was complaining of being too cold. He mentioned that there was a great amount of air blowing in and making it very cold for him. I reached over and would concur that it was very cold. I showed him where the firewall air shut off was (just under the yoke in front of him not visible to him). Upon pulling it out the air volume blowing decreased significantly. He said that it was better yet there was still more cold air coming out. I thought that the matter was dealt with and settled. A few minutes passed and I was looking out the window on my side and all of the sudden the engine lost power and quit. I immediately asked what did he do and he said I'm sorry I just pulled this lever. He had pulled the firewall fuel shut-off. [It] is the same as the firewall air shut off and similar in color. I immediately realized what he did and I went through shut down procedures and radioed approach [giving them] my tail number and explained that my engine quit. Approach gave me vectors to the nearest airport and I told them that I was going to continue straight and begin an engine restart. I began an engine restart and the engine did restart and all the engine parameters; numbers came back up to normal and I radioed approach and told them everything looked ok I was climbing and would not be needing any assistance. During the incident I had descended from 11;000 feet to 9;700 feet while trying to re-trim and establish shut down procedures and restart. The rest of the flight went well without any other surprises or problems.I will from now on during my passenger brief establish that the passengers are not to move; pull/push any levers controls or switches. I was also thankful that I had just completed my flight procedures training [recently] where emergency procedures was practiced several times. I truly believe that that training helped me keep my head and was able to do the shut down and restart from memory under a significantly intense situation.

Original NASA ASRS Text

Title: A Kodiak 100 pilot flying with a friend became cold at 11;000 feet. The pilot instructed the passenger to close the Firewall air shutoff. The passenger closed the Firewall Fuel Shutoff; next to the air shutoff; which fuel starved the engine. The pilot successfully restarted the engine.

Narrative: While in cruise at 11;000 feet just before passing a large airport my passenger in the right front seat was complaining of being too cold. He mentioned that there was a great amount of air blowing in and making it very cold for him. I reached over and would concur that it was very cold. I showed him where the firewall air shut off was (just under the yoke in front of him not visible to him). Upon pulling it out the air volume blowing decreased significantly. He said that it was better yet there was still more cold air coming out. I thought that the matter was dealt with and settled. A few minutes passed and I was looking out the window on my side and all of the sudden the engine lost power and quit. I immediately asked what did he do and he said I'm sorry I just pulled this lever. He had pulled the firewall fuel shut-off. [It] is the same as the Firewall Air Shut Off and similar in color. I immediately realized what he did and I went through shut down procedures and radioed Approach [giving them] my tail number and explained that my engine quit. Approach gave me vectors to the nearest airport and I told them that I was going to continue straight and begin an engine restart. I began an engine restart and the engine did restart and all the engine parameters; numbers came back up to normal and I radioed Approach and told them everything looked OK I was climbing and would not be needing any assistance. During the incident I had descended from 11;000 feet to 9;700 feet while trying to re-trim and establish shut down procedures and restart. The rest of the flight went well without any other surprises or problems.I will from now on during my passenger brief establish that the passengers are not to move; pull/push any levers controls or switches. I was also thankful that I had just completed my Flight Procedures Training [recently] where Emergency Procedures was practiced several times. I truly believe that that training helped me keep my head and was able to do the shut down and restart from memory under a significantly intense situation.

Data retrieved from NASA's ASRS site 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.

Attributes
ACN	1294381
Time
Date	201509
Local Time Of Day	0601-1200
Place
Locale Reference	ZZZ.TRACON
State Reference	US
Aircraft 1
Make Model Name	Small Transport
Flight Phase	Cruise
Route In Use	Vectors
Component
Aircraft Component	Fuel Distribution System
Person 1
Function	Single Pilot
Qualification	Flight Crew Air Transport Pilot (ATP) Flight Crew Flight Instructor Flight Crew Instrument Flight Crew Multiengine
Experience	Flight Crew Last 90 Days 98 Flight Crew Total 3280 Flight Crew Type 122
Events
Anomaly	Deviation - Procedural Published Material / Policy Flight Deck / Cabin / Aircraft Event Passenger Misconduct Inflight Event / Encounter Fuel Issue

A kodiak 100 pilot flying with a friend became cold at 11;000 feet. The pilot instructed the passenger to close the firewall air shutoff. The passenger closed the firewall fuel shutoff; next to the air shutoff; which fuel starved the engine. The pilot successfully restarted the engine.