SEA07CA211

NTSB accident investigation · Artic S-1B2 · McCall, ID · July 24, 2007

Accident · No injuriesData collectionFinal report
Date
July 24, 2007, 14:10 local (20:10 UTC)
Place
McCall, ID
Injuries
1 uninjured
Damage
Substantial damage
Phase of flight
Landing
Aircraft
N176AZArtic S-1B2
Weather
Visual (VMC) · Day
Status
Completed · report November 29, 2007
Report
Approved by Office Director
Case key
66287

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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Probable cause

The pilot's failure to maintain airspeed during the landing flare resulting in a hard landing and subsequent failure to maintain directional control during the landing roll. The soft terrain condition adjacent to the runway was a factor.

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.

Hard landingLanding - flare/touchdown
Airspeed - not maintainedPilot in commandCause
Flare - improperPilot in command
Loss of control - on ground/waterLanding - roll
Directional control - not maintainedPilot in commandCause
Ground loop/swerve - encounteredPilot in command
On ground/water encounter with terrain/waterLanding - roll
Terrain condition - softFactor

Analysis

The pilot entered the aircraft into the traffic pattern on a left downwind and flew a "stable" base and final leg. However, when the aircraft crossed the runway threshold, a "rapid sink rate developed" and the aircraft experienced a hard landing. Upon touchdown, the aircraft swerved to the left and departed the runway surface onto soft, sandy soil. The right wingtip contacted the ground, and the aircraft, stopped by the soft terrain, nosed over onto the propeller.

Factual narrative

The pilot entered the aircraft into the traffic pattern on a left downwind and flew a "stable" base and final leg. However, when the aircraft crossed the runway threshold, a "rapid sink rate developed" and the aircraft experienced a hard landing. Upon touchdown, the aircraft swerved to the left and departed the runway surface onto soft, sandy soil. The right wingtip contacted the ground, and the aircraft, stopped by the soft terrain, nosed down onto the propeller.

The pilot reported no mechanical failures or malfunctions with the aircraft prior to the accident.

Aircraft

Registration
N176AZ
Reported as
Artic S-1B2
Category
Airplane
Serial number
1027
Airframe hours
925.7
Engine
Lycoming O-320-B2B, reciprocating
Damage
Substantial damage
Flight
Personal · Part 91
Registered owner
Cedric Hayden
Airworthiness certificate
Standard, Normal
Last inspection
Annual · September 1, 2006
Departed
ONO · Ontario, OR
Destination
MYL · Mc Call, ID
Airport
MYL · Mc Call, runway 34, 6,107 × 75 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
72
Injuries
None
Airplane ratings
Multi-engine land, Single-engine land
Instrument ratings
Airplane
Medical
Class 3, With waivers/limitations
Last flight review
September 1, 2006
Seat
Front
Flight hours
730 total · 61 in this make and model · 518 as pilot in command · 20 in the last 90 days · 13 in the last 30 days · 6 in the last 24 hours

Weather

Conditions
Visual (VMC) · Day
Wind
Calm
Visibility
10 statute miles
Lowest ceiling
None