ANC07CA019

NTSB accident investigation · Aero Commander 100 · Manokotak, AK · February 8, 2007

Accident · No injuriesData collectionFinal report
Date
February 8, 2007, 18:10 local (22:10 UTC)
Place
Manokotak, AK
Injuries
2 uninjured
Damage
Substantial damage
Phase of flight
Enroute
Aircraft
N3889XAero Commander 100
Weather
Instrument (IMC) · Dusk
Status
Completed · report April 25, 2007
Report
Approved by Office Director
NTSB office
Alaska Regional Office
FAA report
20070208002179A
Case key
65277

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 continued VFR cruise flight into instrument meteorological conditions, which resulted in an in-flight collision with terrain. Factors associated with the accident were fog, low ceilings, snow showers, and snow-covered terrain.

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.

In flight encounter with weatherCruise
Weather condition - fogFactor
Weather condition - snowFactor
Weather condition - low ceilingFactor
In flight collision with terrain/waterDescent
Vfr flight into imc - continuedPilot in commandCause
Terrain condition - snow coveredFactor
Nose overDescent
Terrain condition - mountainous/hilly

Analysis

The private pilot was conducting a Title 14, CFR Part 91 personal flight between two remote communities with one passenger. The pilot said that as the flight arrived in an area of a 650-foot elevation mountain pass, weather conditions consisted of low ceilings, fog, and light snow showers, which made it difficult to discern topographical features on the snow-covered terrain. The airplane entered the pass, and the pilot stated he initiated a climb to 700 feet msl in order to fly over the summit of the pass. As the airplane neared the saddle of the pass, weather conditions worsened, and he said he lost all visual reference with the terrain below. He reported that he thought he was through the pass, and had started a gradual descent, when he caught a quick glimpse of terrain and attempted to climb. The airplane subsequently collided with the snow-covered saddle of the pass, nosed over, and slid down the back side of the pass. The airplane continued to slide for about 1,200 feet, and came to rest in the valley floor below. Neither the pilot nor the passenger reported any injuries. The pilot reported that there were no preaccident mechanical anomalies with the airplane.

Factual narrative

The private pilot was conducting a Title 14, CFR Part 91 personal flight between two remote communities with one passenger. The pilot said that as the flight arrived in an area of a 650-foot elevation mountain pass, weather conditions consisted of low ceilings, fog, and light snow showers, which made it difficult to discern topographical features on the snow-covered terrain. The airplane entered the pass, and the pilot stated he initiated a climb to 700 feet msl in order to fly over the summit of the pass. As the airplane neared the saddle of the pass, weather conditions worsened, and he said he lost all visual reference with the terrain below. He reported that he thought he was through the pass, and had started a gradual descent, when he caught a quick glimpse of terrain and attempted to climb. The airplane subsequently collided with the snow-covered saddle of the pass, nosed over, and slid down the back side of the pass. The airplane continued to slide for about 1,200 feet, and came to rest in the valley floor below. Neither the pilot nor the passenger reported any injuries. The pilot reported that there were no preaccident mechanical anomalies with the airplane.

Aircraft

Registration
N3889X
Reported as
Aero Commander 100
Category
Airplane
Serial number
194
Airframe hours
1,701
Engine
Lycoming O-320, 150 horsepower, reciprocating
Damage
Substantial damage
Flight
Personal · Part 91
Registered owner
James H. Bingman
Airworthiness certificate
Standard, Normal
Last inspection
Annual · December 1, 2006 · 23 hours before
Departed
TOG · Togiak Village, AK
Destination
DLG · Dillingham, AK

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
69
Injuries
None
Certificate
Private
Airplane ratings
Single-engine sea, Single-engine land
Medical
Class 3, With waivers/limitations
Last flight review
July 1, 2006
Seat
Left
Flight hours
5,060 total · 24 in this make and model · 5,060 as pilot in command · 24 in the last 90 days · 13 in the last 30 days · 2 in the last 24 hours

Weather

Conditions
Instrument (IMC) · Dusk
Wind
Calm
Visibility
0 statute miles
Temperature
28 °F

FAA reports on this event · 1

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