CEN11LA072

NTSB accident investigation · Embraer ERJ 170-200 LR · Minneapolis, MN · November 15, 2010

Accident · No injuriesLimited investigationFinal report
Date
November 15, 2010, 11:45 local (17:45 UTC)
Place
Minneapolis, MN
Injuries
80 uninjured
Damage
Substantial damage
Phase of flight
Enroute
Aircraft
N604CZEmbraer ERJ 170-200 LR
Defining event
Enroute-climb to cruise: Birdstrike
Weather
Visual (VMC) · Day
Status
Completed · report December 27, 2011
Report
Approved by Office Director
NTSB office
Central Region
Parties
Compass Airlines, Inc., Federal Aviation Administration - Minneapolis FSDO
FAA report
20101115052079A
Case key
77823

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

On this page

Probable cause

The in-flight collision with a flock of birds during climb.

Findings · 1

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 · Effect on equipmentEmbraer-Empresa Brasileira De ERJ 170-200 LR: 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.

Analysis

The regional jet collided with a flock of large birds shortly after takeoff as it climbed through 5,000 feet mean sea level. The flight crew reported that, although there were no observed flight control or engine anomalies, they elected to return to the departure airport and the captain subsequently completed an uneventful visual approach and landing. A postaccident examination of the airframe revealed substantial damage to the radar dome and its underlying structural components. The forward pressure bulkhead web contained a dent and puncture. The left engine compressor section exhibited damage that was consistent with a bird strike.

Factual narrative

On November 15, 2010, at 1145 central standard time, an Embraer ERJ 170-200 LR regional jet, registration number N604CZ, operated by Compass Airlines as flight 5887, collided with a flock of birds shortly after departing the Minneapolis/St. Paul International Airport (KMSP), Minneapolis, Minnesota. The airplane was substantially damaged during the collision with the birds. The pilot, co-pilot, two flight attendants, and 76 passengers were not injured. Visual meteorological conditions prevailed at the time of the accident. The commercial flight was operating under the provisions of 14 Code of Federal Regulations Part 121 while on an instrument flight plan. The flight's intended destination was Missoula, Montana, but the flight diverted back to KMSP after the collision without further incident. According to a report filed by the operator, the flight had departed runway 30R and was climbing through 5,000 feet mean sea level at 250 knots when the airplane collided with a flock of large birds. The flight crew reported that after the collision there were no anomalies with the flight controls, but the autothrottle system had disengaged. The engine indication/crew alerting system (EICAS) indicated a failure of the forward cockpit voice recorder and forward flight data recorder. There were no engine or pressurization error codes reported by the EICAS. The first officer's primary flight display had alert flags for the indicated airspeed and altitude parameters. The flight crew elected to return to the departure airport since the extent of damage was unknown. The captain subsequently completed an uneventful visual approach and landing to runway 30L. A postaccident inspection of the airframe revealed substantial damage to the radar dome and its underlining structural components. The forward pressure bulkhead web contained a dent and puncture. The left engine compressor section exhibited damage that was consistent with a bird strike.

Aircraft

Registration
N604CZ
Reported as
Embraer ERJ 170-200 LR
Category
Airplane
Serial number
17000181
Airframe hours
8,540
Engines
General Electric CF34-8E5601, 13,420 lbs thrust, turbo fanGE CF34-8E5, 13,420 lbs thrust, turbo fan
Damage
Substantial damage
Flight
Part 121
Operator
Compass Airlines, LLC, doing business as Delta Connectiton
Registered owner
Delta Airlines
Airworthiness certificate
Standard, Transport
Last inspection
Continuous airworthiness · November 13, 2010
Departed
KMSP · Minneapolis, MN
Destination
KMSO · Missoula, MT
Flight plan
IFR
Airport
KMSP · Minneapolis-St. Paul Intl, runway 30R, 8,200 × 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 · 2

As NTSB recorded them. NTSB leaves out names.

Role
Pilot
Age
34
Injuries
None
Certificates
Commercial, Airline transport
Airplane ratings
Multi-engine land, Single-engine land
Instrument ratings
Airplane
Medical
Class 1, Without waivers/limitations
Last flight review
July 30, 2010
Seat
Left
Flight hours
8,085 total · 2,087 in this make and model · 4,287 as pilot in command · 177 in the last 90 days · 34 in the last 30 days · 6 in the last 24 hours
Role
Co-pilot
Age
38
Injuries
None
Certificates
Airline transport, Commercial
Airplane ratings
Single-engine land, Multi-engine land
Instrument ratings
Airplane
Medical
Class 1, With waivers/limitations
Last flight review
November 23, 2009
Seat
Right
Flight hours
4,393 total · 1,554 in this make and model · 1,516 as pilot in command · 202 in the last 90 days · 59 in the last 30 days · 6 in the last 24 hours

Weather

Conditions
Visual (VMC) · Day
Wind
Calm
Visibility
7 statute miles
Lowest ceiling
7,000 ft broken
Temperature
36 °F, dew point 28 °F
Altimeter
29.73 inHg
Observed at
KMSP, 5 nm away

Docket · 3

The files NTSB released with the investigation on November 18, 2011, on NTSB’s docket system: statements, records, photos and specialists’ reports. 2.0 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.

Other investigations on N604CZ · 1

Matched to the same aircraft by N-number and date.