SEA85FA225

NTSB accident investigation · Cessna 177BII · Lolo Pass, ID · September 22, 1985

Accident · FatalField investigationFinal report
Date
September 22, 1985, 15:30 local (22:30 UTC)
Place
Lolo Pass, ID
Injuries
3 fatal, 2 serious
Damage
Destroyed
Phase of flight
Enroute
Aircraft
N35105Cessna 177BII
Weather
Visual (VMC) · Day
Status
Completed
Report
Approved by Office Director
FAA report
19850922046899A
Case key
40064

From the NTSB’s public API. By law, NTSB reports can’t be used as evidence in lawsuits over the accident.

On this page

Sequence of events

NTSB’s coding before 2008: each occurrence and phase of flight, and the causes and factors under it. The codes are defined in NTSB’s coding manual.

Loss of engine power(total) - nonmechanicalCruise
Fluid,fuel - exhaustion
Preflight planning/preparation - improperPilot in commandCause
Engine instruments,fuel quantity gage - false indicationFactor
Fuel consumption calculations - inadequatePilot in commandCause
Forced landingDescent - emergency
Loss of control - in flightManeuvering - turn to landing area (emergency)
In-flight planning/decision - improperPilot in commandFactor
Maneuver - excessivePilot in commandFactor
Stall - inadvertentPilot in commandCause
In flight collision with terrain/waterDescent - uncontrolled

Analysis

The plt failed to visually check the fuel tanks during preflt and departed with 3.4 hours flown on the pre-existing fuel supply. Fuel exhaustion occurred 1.2 hours into the flt. The plt overflew a suitable forced landing site and attempted a last minute turn back to the site. The acft stalled in a steep turn at low alt, colliding with trees on a steep downslope. Inspection of the acft failed to disclose signs of fuel both in the acft and on the terrain surroundingthe wreckage. The fuel gages were known to be inaccurate and the operator had a sign posted instructing plts to visuallycheck the fuel quantity. Also, a separate fuel consumption log was kept for the acft. The rear bench seat had three occupants seated on it with one seat belt utilized for all three. The belt separated from the floor mounts during the accident.

Aircraft

Registration
N35105
Reported as
Cessna 177BII
Category
Airplane
Serial number
17702210
Airframe hours
2,937
Engine
Lycoming O-360-A1F6D, 180 horsepower, reciprocating
Damage
Destroyed
Flight
Personal · Part 91
Operator
Dorian B. Rogers, doing business as Cascade Flying Service
Registered owner
Doran B. Rogers
Airworthiness certificate
Standard, Utility; Standard, Normal
Last inspection
Annual · June 11, 1985 · 20 hours before
Departed
Garfield, WA
Destination
S82 · Kooskia, ID

Matched to the registry by N-number and the event date; the registry’s history has gaps, so older matches can be wrong. Compare the reported make and model.

Flight crew

As NTSB recorded them. NTSB leaves out names.

Role
Pilot
Age
41
Certificate
Private
Airplane ratings
Single-engine land
Medical
Class 3, Valid Medical--no waivers/lim.
Seat
Left
Toxicology
Performed
Flight hours
400 total · 13 in this make and model · 11 as pilot in command · 1 in the last 24 hours

Weather

Conditions
Visual (VMC) · Day
Visibility
30 statute miles
Lowest ceiling
None
Temperature
61 °F

FAA reports on this event · 1

The FAA’s own accident and incident reports, matched to the aircraft by N-number and date.

Other investigations on N35105 · 1

Matched to the same aircraft by N-number and date.