SEA83LA177

NTSB accident investigation · Cessna 185E · Boise, ID · August 14, 1983

Accident · No injuriesLimited investigationFinal report
Date
August 13, 1983, 18:34 local (Aug 14, 1983, 00:34 UTC)
Place
Boise, ID
Injuries
3 uninjured
Damage
Substantial damage
Phase of flight
Landing
Aircraft
N4772QCessna 185E
Weather
Visual (VMC) · Day
Status
Completed
Report
Approved by Office Director
FAA report
19830813041119A
Case key
39754

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

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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 control - in flightLanding - flare/touchdown
Weather condition - crosswindFactor
Flare - misjudgedPilot in commandCause
Ground loop/swerve - performedPilot in commandCause
Brakes(normal) - excessivePilot in commandCause
Main gear collapsedLanding - roll
Landing gear,main gear - separationFactor
Landing gear,main gear strut - failure,totalFactor
Landing gear,main gear - overloadFactor
Landing gear,main gear strut - overloadFactor

Analysis

The acft landed in a near maximum velocity crosswind and while braking to control/correct a swerve, the right main landing gear separated from the acft. The landing was on rwy 28R and the wind was from 200 degrees at 10 to 14 KTS on final and 12 KTS when the pilot was over the threshold. The acft touched down on the left wheel and bounced a little. Ittouched down again on the left gear and the pilot raised the tail. The right main came down with the tail still in the air. At about 4O mph the tail was lowered and the acft started a left turn. The pilot corrected with full rudder and right braking. The pilot detected a sinking on the right side and then the right strut collapsed. When he deplaned the pilot discovered the right gear had separated. The maximum demonstrated crosswind velocity for this aircraft (Cessna 185) is 15 KTS. Metallurgical tests were performed on the right wheel spindle attaching nuts and bolts which showed that the rear bolts failed at the interface of spindle and strut due to tensile overload.

Aircraft

Registration
N4772Q
Reported as
Cessna 185E
Category
Airplane
Serial number
185-1239
Engine
Continental O-470-R, 230 horsepower, reciprocating
Damage
Substantial damage
Flight
Part 135
Operator
Salmon Air Taxi
Registered owner
Mountain Bird, Incorporated
Airworthiness certificate
Standard, Normal
Departed
MYL · Mccall, ID
Destination
BOI · Boise, ID
Flight plan
Company VFR
Airport
BOI · Boise Air Terminal, runway 28R, 7,400 × 150 ft, asphalt

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
30
Certificate
Commercial
Airplane ratings
Single-engine land, Multi-engine land
Instrument ratings
Airplane
Medical
Class 2, Valid Medical--w/ waivers/lim
Seat
Left
Flight hours
1,164 total · 55 in this make and model · 987 as pilot in command · 30 in the last 90 days · 2 in the last 24 hours

Weather

Conditions
Visual (VMC) · Day
Wind
200° at 15 knots
Visibility
20 statute miles
Lowest ceiling
14,000 ft broken
Temperature
82 °F, dew point 48 °F
Altimeter
30.00 inHg
Observed at
BOI

FAA reports on this event · 1

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