# NTSB GAA18CA354: Boeing B75, N52107, Waukegan, IL, June 15, 2018 - Type: NTSB accident investigation - Classification: Accident · No injuries · Data collection · Final report - Date: June 15, 2018, 13:40 local (18:40 UTC) - Place: Waukegan, IL - Coordinates: 42.422222, -87.867774 (estimated) - Nearby events: https://openairdocs.org/map.md?lat=42.4222&lon=-87.8678&mi=10 - Phase of flight: [Landing](https://openairdocs.org/ntsb-phases/550) (OpenAirDocs' grouping) - Defining event: [Landing: Loss of control on ground](https://openairdocs.org/ntsb-events/230) - Highest injury: No injuries - Injuries: 2 uninjured - Status: Completed, report March 18, 2019 - Report: Approved by Office Director - NTSB office: General Aviation Accidents - Parties: FAA - NTSB case key (mKey): 97507 - NTSB case page: https://web.ntsb.gov/investigations/?ntsbnumber=GAA18CA354 - NTSB report (PDF, downloads): https://data.ntsb.gov/carol-repgen/api/Aviation/ReportMain/GenerateNewestReport/97507/pdf - NTSB docket: https://data.ntsb.gov/Docket?ProjectID=97507 - Page: https://openairdocs.org/ntsb/GAA18CA354 ## Probable cause The flight instructor’s improper landing flare, which resulted in a bounced landing and subsequent loss of directional control. ## Findings NTSB's coded findings; those marked are part of the probable cause. - [Performance/control parameters: pitch control](https://openairdocs.org/ntsb-findings/01062022): Aircraft › Aircraft oper/perf/capability · Not attained/maintained (probable cause); cases with it: [Boeing B75N1, 3 cases](https://openairdocs.org/ntsb-findings/01062022/cases.md?model=1380144), [All aircraft, 526 cases](https://openairdocs.org/ntsb-findings/01062022/cases.md) - [Performance/control parameters: airspeed](https://openairdocs.org/ntsb-findings/01062010): Aircraft › Aircraft oper/perf/capability · Not attained/maintained (probable cause); cases with it: [Boeing B75N1, 1 case](https://openairdocs.org/ntsb-findings/01062010/cases.md?model=1380144), [All aircraft, 1,681 cases](https://openairdocs.org/ntsb-findings/01062010/cases.md) - [Performance/control parameters: directional control](https://openairdocs.org/ntsb-findings/01062020): Aircraft › Aircraft oper/perf/capability · Not attained/maintained (probable cause); cases with it: [Boeing B75N1, 12 cases](https://openairdocs.org/ntsb-findings/01062020/cases.md?model=1380144), [All aircraft, 3,958 cases](https://openairdocs.org/ntsb-findings/01062020/cases.md) - [Use of equip/info: aircraft control](https://openairdocs.org/ntsb-findings/02063040): Personnel issues › Task performance · Pilot (probable cause); cases with it: [Boeing B75N1, 13 cases](https://openairdocs.org/ntsb-findings/02063040/cases.md?model=1380144), [All aircraft, 9,295 cases](https://openairdocs.org/ntsb-findings/02063040/cases.md) ## Sequence of events The events NTSB coded, in order, by phase of flight. The defining event best describes what happened. - [Landing: Loss of control on ground](https://openairdocs.org/ntsb-events/230) (defining event); cases with it: [Boeing B75N1, 12 cases](https://openairdocs.org/ntsb-events/230/sequence.md?model=1380144), [All aircraft, 4,585 cases](https://openairdocs.org/ntsb-events/230/sequence.md) - [Landing: Abnormal runway contact](https://openairdocs.org/ntsb-events/090); cases with it: [Boeing B75N1, 1 case](https://openairdocs.org/ntsb-events/090/sequence.md?model=1380144), [All aircraft, 1,506 cases](https://openairdocs.org/ntsb-events/090/sequence.md) ## Analysis The flight instructor reported that, during an instructional flight, the radio and intercom failed. The instructor returned to the airport and received a green light from the tower air traffic controller to land. During touchdown, the airplane "ballooned," touched down again, and then veered right and ground looped. The airplane sustained substantial damage to the left wing. The instructor reported that there were no preaccident mechanical failures or malfunctions with the airplane that would have precluded normal operation. ## Factual narrative The flight instructor reported that, during an instruction flight, the radio and intercom failed. The instructor returned to the airport and received a green light from the tower air traffic controller to land. During touchdown, the airplane "ballooned," touched down again, and then veered to the right and ground looped. The airplane sustained substantial damage to the left wing. The instructor reported that there were no preaccident mechanical failures or malfunctions with the airplane that would have precluded normal operation. The pilot did not submit the NTSB Form 6120.1 Pilot/Operator Aircraft Accident/Incident Report. ## Aircraft - Registration: [N52107](https://openairdocs.org/aircraft/N52107), registered now, S/N 75-4924, built 1941 (OpenAirDocs) - Reported make and model: BOEING B75 (N1) - Registry model: [Boeing B75N1](https://openairdocs.org/model/boeing-b75n1) (registry code 1380144) (OpenAirDocs) - Registry engine: [Continental W670 series](https://openairdocs.org/engine/continental-w670-series) (registry code 17018, reciprocating) (OpenAirDocs) - Category: Airplane - Serial number: 75-4924 - Year built: 1941 - Engines: Continental Motors W670 reciprocating - Damage: Substantial damage - Flight: Personal, Part 91 - Operator: Warbird Heritage Foundation Inc - Registered owner: Warbird Heritage Foundation Inc - Airworthiness certificate: Standard, Normal - Departed: UGN, WAUKEGAN, IL - Destination: UGN, WAUKEGAN, IL - Flight plan: Unknown - Airport: UGN, Waukegan National, runway 23, 6,000 × 150 ft, asphalt - Equipment: Unknown ## Flight crew As NTSB recorded them. NTSB leaves out names. - Pilot; age 64; injuries: minor; flight instructor, commercial, airline transport; airplane ratings: multi-engine land, single-engine land; medical: class 2, with waivers/limitations; flight hours: 7,580 total, 180 in this make and model ## Weather - Conditions: Visual (VMC), Day - Wind: 160° at 5 knots - Visibility: 10 statute miles - Lowest ceiling: none - Temperature: 79 °F, dew point 61 °F - Altimeter: 29.97 inHg - Observed at: KUGN ## 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 20180615007949A](https://openairdocs.org/incident/20180615007949A), Jun 15, 2018: Boeing B75N1, Waukegan, IL, Substantial damage. Pilot departed rwy 23 for an instructional flight. Intercom and radio failed during flight. Pilot returned to airport and received a green light from the… ## Docket (3 files) The files NTSB released with the investigation on November 21, 2018, on NTSB's docket system: https://data.ntsb.gov/Docket?ProjectID=97507. 195 KB in all. - Accident Photo (item 1, .PDF, 1 photo, 84 KB): https://data.ntsb.gov/Docket/Document/docBLOB?ID=40468491&FileExtension=.PDF&FileName=Accident%20Photo-Master.PDF - Record of Conversation - FAA (item 2, .PDF, 55 KB): https://data.ntsb.gov/Docket/Document/docBLOB?ID=40468492&FileExtension=.PDF&FileName=Record%20of%20Conversation%20-%20FAA-Master.PDF - Record of Conversation - Pilot (item 3, .PDF, 56 KB): https://data.ntsb.gov/Docket/Document/docBLOB?ID=40468493&FileExtension=.PDF&FileName=Record%20of%20Conversation%20-%20Pilot-Master.PDF 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.