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NTSB Report
July 17, 2011 · Cessna 172N · N733BT
Porthill, ID
Overview
Report Status
Final with probable cause
Event Type
Accident
Date
July 17, 2011
Injury Outcomes
No injuries (2 uninjured)
Location
Porthill, ID
Aircraft
Cessna 172N
Tail Number
N733BT
Operator
Northern Air
Injuries
None
Aircraft Damage
Substantial
NTSB Number
WPR11CA337
The flight instructor reported that he was taxiing from the runway to the customs area located on the northern side of the airport, which required the airplane to taxi on a road between the runway and the U.S. Customs facility. The airplane's right wing struck a sign post on the right side of the road. The sign post dented the leading edge and bent internal wing ribs. The pilot reported no preimpact mechanical malfunctions or failures that would have precluded normal flight.
NTSB Probable Cause
Environmental issues-Physical environment-Object/animal/substance-Sign/marker-Response/compensation - C
Full Narrative
The flight instructor reported that he was taxiing from the runway to the customs area located on the northern side of the airport, which required the airplane to taxi on a road between the runway and the US Customs facility. The airplane's right wing struck a sign post on the right side of the road. The sign post dented the leading edge and bent internal wing ribs. The pilot reported no preimpact mechanical malfunctions or failures that would have precluded normal flight.
Flight
Event TypeAccident
Event Time15:00 PDT
Nearest AirportEckhard International Airport (0nm)
Runway33
Runway Length3650 ft
Runway Width175 ft
Flight Plan FiledUnknown
Flight Plan ActivatedNo
Aircraft FireNo
Aircraft ExplosionNo
Aircraft
AircraftCessna 172N
Tail NumberN733BT
Aircraft CategoryAir
DamageSubstantial
OperatorNorthern Air
Operating RulePart 91
Engines1
Engine TypeReciprocating
Engine DetailsLycoming · O-320 SERIES · Reciprocating · 150
Seats4
People & Injuries
Injury SummaryNo injuries (2 uninjured)
Fatal0
Serious0
Minor0
Uninjured2
Total2
Crew 1Age 67 · Second Class · None
Crew 2Age 31 · Second Class · None
Conditions
ConditionsVMC
LightDaylight
Wind136° @ 3 kt
Visibility10 sm
CeilingBroken clouds 12000 ft
Temperature / Dew Point52
Altimeter29.77 inHg
Observation Time21:55
Weather SourceWFAC