Cessna 180 instructor pilot reported that his student had to conduct a forced landing due to fuel st...

Attributes
ACN	1696811
Time
Date	201910
Local Time Of Day	0601-1200
Place
Locale Reference	SSQ.Airport
State Reference	WI
Aircraft 1
Make Model Name	Cessna 180 Skywagon
Operating Under FAR Part	Part 91
Flight Phase	Cruise
Route In Use	Direct
Flight Plan	None
Component
Aircraft Component	Fuel System
Person 1
Function	Instructor
Qualification	Flight Crew Multiengine Flight Crew Instrument Flight Crew Flight Instructor
Experience	Flight Crew Last 90 Days 30 Flight Crew Total 4700 Flight Crew Type 11
Events
Anomaly	Aircraft Equipment Problem Critical Deviation - Procedural Published Material / Policy Inflight Event / Encounter CFTT / CFIT Inflight Event / Encounter Fuel Issue

Narrative:

I reviewed the cross country flight plan of my student pilot and endorsed his logbook to make a solo cross country flight from ZZZ to ZZZ1 to ZZZ2 to ZZZ3 where he planned to refuel the airplane and then continue on additional legs to ultimately return to kfld. For some reason; he decided to not refuel at ZZZ3 but rather continue to his next destination; ssq. The aircraft began losing power approximately 15 nm northwest of this destination; and he successfully landed in a pasture. Based on departing from kfld with nearly full tanks and flying approximately 3 hours; there should have been sufficient fuel regardless. As of this time; I am unaware whether fuel remained in the tanks; mechanics are inspecting the fuel ventilation system to determine whether such an issue was involved.

Original NASA ASRS Text

Title: Cessna 180 instructor pilot reported that his student had to conduct a forced landing due to fuel starvation of an unknown cause.

Narrative: I reviewed the cross country flight plan of my student pilot and endorsed his logbook to make a solo cross country flight from ZZZ to ZZZ1 to ZZZ2 to ZZZ3 where he planned to refuel the airplane and then continue on additional legs to ultimately return to KFLD. For some reason; he decided to not refuel at ZZZ3 but rather continue to his next destination; SSQ. The aircraft began losing power approximately 15 nm NW of this destination; and he successfully landed in a pasture. Based on departing from KFLD with nearly full tanks and flying approximately 3 hours; there should have been sufficient fuel regardless. As of this time; I am unaware whether fuel remained in the tanks; Mechanics are inspecting the fuel ventilation system to determine whether such an issue was involved.

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.