# NTSB CHI99LA085: Beech 1900D, N148SK, Milwaukee, WI, February 8, 1999 - Type: NTSB accident investigation - Classification: Accident · No injuries · Limited investigation · Final report - Date: February 8, 1999, 11:35 local (17:35 UTC) - Place: Milwaukee, WI - Coordinates: 42.979663, -87.899574 (estimated) - Nearby events: https://openairdocs.org/map.md?lat=42.9797&lon=-87.8996&mi=10 - Phase of flight: [Approach](https://openairdocs.org/ntsb-phases/500) (OpenAirDocs' grouping) - Highest injury: No injuries - Injuries: 14 uninjured - Status: Completed, report April 20, 2001 - Report: Approved by Office Director - NTSB case key (mKey): 45754 - NTSB case page: https://web.ntsb.gov/investigations/?ntsbnumber=CHI99LA085 - NTSB report (PDF, downloads): https://data.ntsb.gov/carol-repgen/api/Aviation/ReportMain/GenerateNewestReport/45754/pdf - Page: https://openairdocs.org/ntsb/CHI99LA085 ## Probable cause the in-flight collision with a bird. ## Sequence of events In NTSB's coding before 2008 (https://www.ntsb.gov/GILS/Documents/codman.pdf). - In flight collision with object, approach - object - bird(s) (cause) ## Analysis The crew reported that approximately 24 nautical miles from the flight's destination, at 2,900 feet mean sea level, they encountered a flock of 20 to 30 Canadian geese while the aircraft was flying in a broken cloud layer. The crew stated that one goose impacted the outboard leading edge of the right wing, puncturing a hole through the leading edge and rupturing the fuel tank. The crew stated that the aircraft began to shake and the crew shut down the right engine. The crew declared an emergency with Air Traffic Control and was able to complete the flight to General Mitchell International. ## Factual narrative On February 8, 1999, at 1135 central standard time (CST), a Beech 1900D, N148SK, piloted by an Airline Transport Pilot, sustained substantial damage following an in-flight impact with a Canadian goose. Instrument meteorological conditions prevailed at the time of the accident. The flight was operating under the provisions of 14 CFR Part 121 as a passenger carrying flight. The flight was operating on an instrument flight plan. The 2 crew members and 12 passengers reported no injuries. The flight departed Kent County International, Grand Rapids, Michigan, at 1053 CST, and was en route to General Mitchell International, Milwaukee, Wisconsin. According to the crew's written statement, they reported that approximately 24 nautical miles from the flight's destination, at 2,900 feet mean sea level, they encountered a flock of 20 to 30 Canadian geese while the aircraft was flying in a broken cloud layer. The crew stated that one goose impacted the outboard leading edge of the right wing, puncturing a hole through the leading edge and rupturing the fuel tank. The crew stated that the aircraft began to shake and the crew shut down the right engine. The crew declared an emergency with Air Traffic Control and was able to complete the flight to General Mitchell International. ## Aircraft - Registration: [N148SK](https://openairdocs.org/aircraft/N148SK), registered now, S/N UE-148, built 1995 (OpenAirDocs) - Reported make and model: Beech 1900D - Registry model: [Beech 1900D](https://openairdocs.org/model/beech-1900d) (registry code 1154162) (OpenAirDocs) - Registry engine: [Pratt & Whitney Canada PT6A-6 series](https://openairdocs.org/engine/pratt-whitney-canada-pt6a-6-series) (registry code 52150, turbo-prop) (OpenAirDocs) - Category: Airplane - Serial number: UE148 - Airframe hours: 8899 - Engines: P&W PT6A-67D 1279 horsepower turbo prop - Damage: Substantial damage - Flight: Part 121 - Registered owner: Astral Aviation, Inc. - Airworthiness certificate: Standard, Transport - Last inspection: Continuous airworthiness, February 4, 1999, 20 hours before - Departed: GRR, GRAND RAPIDS, MI - Destination: MKE - Flight plan: IFR - Airport: MKE, General Mitchel Int'L ## Flight crew As NTSB recorded them. NTSB leaves out names. - Pilot; age 34; airline transport; airplane ratings: multi-engine land, single-engine land; instrument ratings: airplane; medical: class 1, valid medical--w/ waivers/lim; seat: left; flight hours: 4,990 total, 2,833 in this make and model, 3,752 as pilot in command, 87 in the last 90 days, 3 in the last 30 days, 5 in the last 24 hours ## Weather - Conditions: Instrument (IMC), Day - Wind: 180° at 15 knots - Visibility: 3 statute miles - Lowest ceiling: 800 ft broken - Temperature: 37 °F, dew point 36 °F - Altimeter: 29.00 inHg - Observed at: MKE, 24 nm away ## FAA reports on this event (1) The FAA's own accident and incident reports, matched to the aircraft by N-number and date (OpenAirDocs). - [Accident 19990208001209A](https://openairdocs.org/incident/19990208001209A), Feb 8, 1999: Beech 1900D, Milwaukee, WI, Substantial damage. Skyway airlines acft was at 3,000 feet preparing for approach when it struck a 20 pound goose with the right wing, the goose passed through the leading edge,… ## Other investigations on N148SK (1) From the NTSB's public API. Aircraft are matched to registry aircraft by N-number and event date, checked against the reported serial number, make and model; the registry's history has gaps, so older matches can be wrong. Compare the reported make and model. - [NTSB CHI96IA170](https://openairdocs.org/ntsb/CHI96IA170), May 24, 1996: Beech 1900D (N148SK), Indianapolis, IN, incident, minor damage. Probable cause: failure of a forward cabin ventilation blower motor bearing, which resulted in binding of the blower motor; and inadequate design of the electrical system, which allowed overheating of the electrical… From the NTSB's public API. Aircraft are matched to registry aircraft by N-number and event date, checked against the reported serial number, make and model; the registry's history has gaps, so older matches can be wrong. Compare the reported make and model. --- OpenAirDocs.org is an independent research project of [Contrail Labs](https://contraillabs.com/). It is not affiliated with the FAA or the NTSB. Source documents are U.S. government works in the public domain.