# NTSB CHI01LA314: Beech 76, N383, Wheeling, IL, September 10, 2001 - Type: NTSB accident investigation - Classification: Accident · No injuries · Limited investigation · Final report - Date: September 10, 2001, 17:56 local (22:56 UTC) - Place: Wheeling, IL - Coordinates: 42.130512, -87.920417 (estimated) - Nearby events: https://openairdocs.org/map.md?lat=42.1305&lon=-87.9204&mi=10 - Phase of flight: [Takeoff](https://openairdocs.org/ntsb-phases/300) (OpenAirDocs' grouping) - Highest injury: No injuries - Injuries: 2 uninjured - Status: Completed, report October 24, 2002 - Report: Approved by Office Director - Parties: FAA-West Chicago, Illinois-FSDO - NTSB case key (mKey): 53471 - NTSB case page: https://web.ntsb.gov/investigations/?ntsbnumber=CHI01LA314 - NTSB report (PDF, downloads): https://data.ntsb.gov/carol-repgen/api/Aviation/ReportMain/GenerateNewestReport/53471/pdf - Page: https://openairdocs.org/ntsb/CHI01LA314 ## Probable cause The failure of the hydraulic power pack,and the false landing gear position indication. ## Sequence of events In NTSB's coding before 2008 (https://www.ntsb.gov/GILS/Documents/codman.pdf). - Airframe/component/system failure/malfunction, takeoff - hydraulic system - failure (cause) - Gear collapsed, landing - landing gear,gear indicating system - false indication (cause) - landing gear,main gear - collapsed (cause) ## Analysis The airplane was damaged when the right main landing gear collapsed during landing. The flight instructor said that after takeoff the landing gear of the airplane would not retract. He said that he and his student attempted to raise the gear several times to no avail. They decided to fly the airplane to another airport with the landing gear in the down position. During the approach and landing phases of the flight, the landing gear was verified in the down position using the landing gear position indicating lights. This check was performed two times during the approach. The right main landing gear collapsed during the landing. During removal of the airplane from the accident scene it was found that the right main and nose landing gear were not completely down and locked. Only the left main was found in the locked position. Subsequent to the accident, the landing gear system hydraulic power pack was found to be intermittent. ## Factual narrative On September 10, 2001, at 1756 central daylight time, a Beech model 76, N383, piloted by a certified flight instructor and dual student, sustained substantial damage when the right main landing gear collapsed during landing on runway 30 (4,397 feet by 50 feet, asphalt), at the Palwaukee Municipal Airport, Wheeling, Illinois. The dual student held a private pilot certificate with a single engine land airplane rating. The 14 CFR Part 91 instructional flight was operating in visual meteorological conditions and was not on a flight plan. The flight instructor and dual student were not injured. The flight originated from the Greater Rockford Airport, Rockford, Illinois at 1715. In a written statement, the flight instructor said that following takeoff from RFD the landing gear of the airplane would not retract. He said that he and his student attempted to raise the gear several times to no avail. They decided to fly the airplane to PWK with the landing gear in the down position. He said that during the approach and landing phases of the flight, the landing gear was verified in the down position using the landing gear position indicating lights. He said that this check was performed two times during the approach. The right main landing gear collapsed during the landing. During removal of the airplane from the accident scene it was found that the right main and nose landing gear were not completely down and locked. Only the left main was found in the locked position. Subsequent to the accident, the landing gear system hydraulic power pack was found to be intermittent. ## Aircraft - Registration: [N383](https://openairdocs.org/aircraft/N383), registered now, S/N ME-388, built 1981 (OpenAirDocs) - Reported make and model: Beech 76 - Registry model: [Beech 76](https://openairdocs.org/model/beech-76) (registry code 1153005) (OpenAirDocs) - Registry engine: [Lycoming 0-360-A1D](https://openairdocs.org/engine/lycoming-0-360-a1d) (registry code 41504, reciprocating) (OpenAirDocs) - Category: Airplane - Serial number: ME-388 - Airframe hours: 2117 - Engines: Lycoming LO-360 180 horsepower reciprocating; Lycoming O-360 180 horsepower reciprocating - Damage: Substantial damage - Flight: Instructional, Part 91 - Registered owner: Palwaukee Wings - Airworthiness certificate: Standard, Normal - Last inspection: 100 hour, August 24, 2001, 58 hours before - Departed: PWK, Wheeling, IL - Airport: PWK, Palwaukee Muni, runway 30, 4,397 × 50 ft, asphalt ## Flight crew As NTSB recorded them. NTSB leaves out names. - Pilot; age 32; injuries: none; flight instructor, commercial; airplane ratings: multi-engine land, single-engine land; instrument ratings: airplane; medical: class 1, valid medical--no waivers/lim.; last flight review April 21, 2000; seat: right; flight hours: 1,757 total, 403 in this make and model, 1,664 as pilot in command, 245 in the last 90 days, 84 in the last 30 days, 8 in the last 24 hours - Student pilot; age 32; injuries: none; private; airplane ratings: single-engine land; medical: class 3, valid medical--no waivers/lim.; last flight review May 1, 2001; seat: left; flight hours: 153 total, 11 in this make and model, 79 as pilot in command, 60 in the last 90 days, 28 in the last 30 days, 2 in the last 24 hours ## Weather - Conditions: Visual (VMC), Day - Wind: 280° at 8 knots - Visibility: 10 statute miles - Lowest ceiling: none - Temperature: 72 °F, dew point 46 °F - Altimeter: 30.18 inHg - Observed at: PWK ## 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 20010910038649A](https://openairdocs.org/incident/20010910038649A), Sep 10, 2001: Beech 76, Chicago/Wheelin, IL, Substantial damage. (.19) On September 10, 2001, at 1756 central daylight time, a Beech model 76, N383, piloted by a certified flight instructor and dual student, sustained… 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.