WPR10LA395

NTSB accident investigation · Embraer EMB-145XR · Salt Lake City, UT · August 10, 2010

Accident · No injuriesLimited investigationFinal report
Date
August 10, 2010, 13:40 local (19:40 UTC)
Place
Salt Lake City, UT
Injuries
50 uninjured
Damage
Substantial damage
Phase of flight
Approach
Aircraft
N14105Embraer EMB-145XR
Defining event
Approach-VFR pattern downwind: Birdstrike
Weather
Visual (VMC) · Day
Status
Completed · report March 16, 2011
Report
Approved by Office Director
NTSB office
Western Pacific Region
Parties
Salt Lake City FSDO
FAA report
20100810040909A
Case key
76925

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

An in-flight collision with a bird while on the downwind leg of the traffic pattern during a visual approach.

Findings · 2

NTSB’s coded findings. Those marked are part of the probable cause; the rest are factors or other findings. Under each, the cases with the same finding.

Object/animal/substance: animal(s)/bird(s)Environmental issues › Physical environment · Contributed to outcomeEmbraer EMB-145XR: 1 caseAll aircraft: 358 casesProbable cause

Sequence of events

The events NTSB coded, in order, by phase of flight. The defining event is the one that best describes the accident. Under each, the cases with the same event anywhere in their sequence.

BirdstrikeApproach-VFR pattern downwindEmbraer EMB-145XR: 1 caseAll aircraft: 253 casesDefining event

Analysis

While on the downwind leg of the traffic pattern for the destination airport, the flying pilot transferred his focus from the instrument panel to outside the airplane. Immediately thereafter, he noticed a flock/formation of large birds directly ahead. With the airplane in such close proximity of the birds, he had no time to take evasive action. One of the birds impacted the airplane just aft of the nose cone. The bird, which was later tentatively identified as a White Pelican, penetrated the airplane's skin and entered the forward avionics bay. Neither flightcrew member had seen the birds in time for evasive action to be taken.

Factual narrative

On August 10, 2010, about 1340 mountain daylight time, an Embraer EMB-145XR, N14105, collided with a large bird while on a downwind for a visual approach to Salt Lake City International Airport, Salt Lake City, Utah. The two flight crew members, the two cabin crew members, and the 46 passengers were not injured, but the airplane, which was owned and operated by Express Jet Airlines, sustained substantial damage. The 14 Code of Federal Regulations Part 121 scheduled passenger flight, which departed Houston-Bush Airport at 1136 central daylight time, was being operated in visual meteorological conditions (VMC). The airplane was on an Instrument Flight Rules (IFR) flight plan. According to the pilot, while the airplane was about five miles north of the airport, on a downwind for a visual approach in visual meteorological conditions, it flew through a flock of large birds about 6,900 feet above ground level (agl). A few seconds prior to the impact, as the airplane was being slowed from 280 knots to 190 knots, the Captain, who was the pilot doing the flying, looked at the instrument panel to check his instruments. When he looked back up he saw what he thought was at least six seagulls directly in front of the airplane. Neither he nor the First Officer had seen the birds prior to that moment in time. Because of their close proximity, there was no time to make control inputs to avoid them, and therefore one of the birds impacted the airplane forward of its windscreen. Because the bird penetrated into the forward avionics department, the Captain lost a number of his primary instruments, so he transferred control of the airplane to the First Officer, who completed an uneventful visual approach. When the airplane was inspected by emergency personnel on the taxiway, it was determined that a section of skin about three feet long had been folded back between the nose cone and the Captain's windscreen. Maintenance personnel who made an initial examination of the bird remains identified it as a White Pelican. A review of the data published by the Utah Water Science Center revealed that the Great Salt Lake is home to one of the three largest colonies of White Pelicans in North America, and that the adult birds can weigh as much as 20 pounds.

Aircraft

Registration
N14105
Reported as
Embraer EMB-145XR
Category
Airplane
Serial number
145649
Airframe hours
22,070
Engines
Rolls-Royc AE3007 SER, 7,200 horsepower, turbo fanRolls-Royc AE3007 SER, 7,200 horsepower, turbo fan
Damage
Substantial damage
Flight
Part 121
Operator
Express Jet Airlines
Registered owner
Wells Fargo Bank Northwest Na Trustee
Airworthiness certificate
Standard, Transport
Last inspection
Continuous airworthiness · August 6, 2010
Departed
KIAH · Houston, TX
Destination
KSLC · Salt Lake City, UT
Flight plan
IFR
Airport
KSLC · Salt Lake City International

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 · 2

As NTSB recorded them. NTSB leaves out names.

Role
Pilot
Age
39
Injuries
None
Certificate
Airline transport
Airplane ratings
Multi-engine land, Single-engine land
Instrument ratings
Airplane
Medical
Class 1, With waivers/limitations
Last flight review
April 22, 2010
Seat
Left
Flight hours
5,471 in this make and model
Role
Co-pilot
Age
61
Injuries
None
Certificate
Commercial
Airplane ratings
Single-engine land, Multi-engine land
Instrument ratings
Airplane
Medical
Class 1, Without waivers/limitations
Last flight review
July 6, 2010
Seat
Right
Flight hours
3,587 in this make and model

Weather

Conditions
Visual (VMC) · Day
Wind
200° at 16 knots, gusting 24
Visibility
10 statute miles
Lowest ceiling
None
Temperature
91 °F, dew point 27 °F
Altimeter
29.97 inHg
Observed at
KSLC, 5 nm away

Docket · 1

The files NTSB released with the investigation on September 28, 2010, on NTSB’s docket system: statements, records, photos and specialists’ reports. 807 KB 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.