WPR10IA045

NTSB incident investigation · Beech C-99 · Show Low, AZ · November 4, 2009

Incident · Minor injuriesIncident investigationFinal report
Date
November 4, 2009, 07:50 local (14:50 UTC)
Place
Show Low, AZ
Injuries
1 minor
Damage
Minor damage
Phase of flight
Enroute
Aircraft
N330AVBeech C-99
Defining event
Enroute-descent: Birdstrike
Weather
Visual (VMC) · Day
Status
Completed · report June 27, 2011
Report
Approved by Office Director
NTSB office
Western Pacific Region
Parties
Federal Aviation Adminstration
FAA report
20091104022249I
Case key
75003

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

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Probable cause

The NTSB’s determination of the probable cause, and any contributing factors.

An in-flight collision with a bird during initial descent.

Findings · 1

NTSB’s coded findings. Those marked are part of the probable cause; the rest are factors or other findings.

Analysis

Shortly after the pilot began the descent to land, about 11,000 feet mean sea level, a bird struck the upper portion of the left pilot’s side windshield, resulting in minor damage to the airplane. The bird made an approximately 11-inch by 8-inch hole, sending bird and glass fragments into the cockpit area. The glass remaining in the windshield was shattered and almost opaque. The pilot continued the descent and landed the airplane uneventfully. Remains from the bird were sent to the Smithsonian Institute and identified as Western Grebe; the average weight of this species is 3.3 pounds.

Factual narrative

On November 4, 2009, about 0750 mountain standard time (MST), a Beech C-99, N330AV, encountered a bird strike while on approach to Show Low Regional Airport (SOW), Show Low, Arizona. Ameriflight, LLC, was operating the airplane under the provisions of 14 Code of Federal Regulations (CFR) Part 135 cargo flight. The commercial pilot sustained minor injuries, and the airplane sustained minor damage to the left front pilot windshield. The cross-country cargo flight departed Phoenix Sky Harbor International Airport (PHX), Phoenix, Arizona, about 0715. Visual meteorological conditions prevailed, and a visual flight rules (VFR) flight plan had been filed. The operator reported that shortly after the pilot began the descent into SOW, about 11,000 feet mean sea level (msl), a bird struck the upper portion of the left pilot’s side windshield. The bird made an approximate 11-inch by 8-inch hole, sending bird and glass fragments into the cockpit area. The glass remaining in the windshield was shattered and contained an almost opaque appearance. The pilot continued the descent and landed the airplane uneventfully. Remains from the bird were recovered from the airplane and sent to the Smithsonian Institute for identification. According to the test results, the remains were identified as Western Grebe. The average weight of this species is 3.3 pounds.

Sequence of events

The events NTSB coded, in order, by phase of flight. The defining event is the one that best describes the accident.

Aircraft

Registration
N330AV
Reported as
Beech C-99
Category
Airplane
Serial number
U-230
Airframe hours
22,205
Engines
P&W PT6A SER, 715 horsepower, turbo propP&W PT6A SER, 715 horsepower, turbo prop
Damage
Minor damage
Flight
Part 135
Operator
Ameriflight, LLC
Registered owner
Wilmington Trust Co Trustee
Airworthiness certificate
Standard, Normal
Last inspection
AAIP · September 23, 2009 · 60 hours before
Departed
PHX · Phoenix, AZ
Destination
SOW · Show Low, AZ
Flight plan
Company VFR
Airport
SOW · Show Low Regional Airport

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
26
Injuries
Minor
Certificate
Commercial
Airplane ratings
Single-engine land, Multi-engine land
Instrument ratings
Airplane
Medical
Class 1, With waivers/limitations
Last flight review
October 31, 2009
Seat
Left
Flight hours
2,100 total · 300 in this make and model · 1,760 as pilot in command · 120 in the last 90 days · 40 in the last 30 days · 5 in the last 24 hours

Weather

Conditions
Visual (VMC) · Day
Wind
Calm
Visibility
9 statute miles
Lowest ceiling
None
Temperature
39 °F, dew point 21 °F
Altimeter
30.39 inHg
Observed at
SOW, 20 nm away

Docket · 2

The files NTSB released with the investigation on April 13, 2011, on NTSB’s docket system: statements, records, photos and specialists’ reports. 1.2 MB in all.

FAA reports on this event · 1

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