# NTSB WPR23LA081: Embraer Executive EMB-505, N16DF, Hawthorne, CA, December 28, 2022 - Type: NTSB accident investigation - Classification: Accident · No injuries · Class 4 · Limited · Final report - Date: December 27, 2022, 18:29 local (Dec 28, 2022, 02:29 UTC) - Place: Hawthorne, CA · Hawthorne Airport - Coordinates: 33.922548, -118.34365 - Nearby events: https://openairdocs.org/map.md?lat=33.9225&lon=-118.3436&mi=10 - Phase of flight: [Landing](https://openairdocs.org/ntsb-phases/550) (OpenAirDocs' grouping) - Defining event: [Landing-landing roll: Runway excursion](https://openairdocs.org/ntsb-events/300) - Highest injury: No injuries - Injuries: 6 uninjured - Status: Completed - Report: Approved by Office Director - Investigation class: Class 4 - Basic report with no Prelim publish - NTSB office: Western Pacific Region - Parties: Federal Aviation Administration - NTSB case key (mKey): 106530 - NTSB case page: https://web.ntsb.gov/investigations/?ntsbnumber=WPR23LA081 - NTSB report (PDF, downloads): https://data.ntsb.gov/carol-repgen/api/Aviation/ReportMain/GenerateNewestReport/106530/pdf - NTSB docket: https://data.ntsb.gov/Docket?ProjectID=106530 - Page: https://openairdocs.org/ntsb/WPR23LA081 ## Probable cause A runway overrun due to the pilot’s failure to stop the airplane as a result of diminished braking action due to a water contaminated runway surface. ## Findings NTSB's coded findings; those marked are part of the probable cause. - [Performance/control parameters: surface speed/braking](https://openairdocs.org/ntsb-findings/01062045): Aircraft › Aircraft oper/perf/capability · Attain/maintain not possible (probable cause); cases with it: [All aircraft, 238 cases](https://openairdocs.org/ntsb-findings/01062045/cases.md) - [Ceiling/visibility/precip: rain](https://openairdocs.org/ntsb-findings/03035035): Environmental issues › Conditions/weather/phenomena · Effect on equipment; cases with it: [All aircraft, 56 cases](https://openairdocs.org/ntsb-findings/03035035/cases.md) - [Runway/land/takeoff/taxi surface: wet surface](https://openairdocs.org/ntsb-findings/03023010): Environmental issues › Physical environment · Effect on equipment; cases with it: [All aircraft, 141 cases](https://openairdocs.org/ntsb-findings/03023010/cases.md) - [Use of equip/info: aircraft control](https://openairdocs.org/ntsb-findings/02063040): Personnel issues › Task performance · Pilot (probable cause); cases with it: [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-landing roll: Runway excursion](https://openairdocs.org/ntsb-events/300) (defining event); cases with it: [All aircraft, 3,643 cases](https://openairdocs.org/ntsb-events/300/sequence.md) ## Analysis The pilot reported that, prior to landing, she obtained weather conditions at the airport, which included calm wind and light rain. After calculating the landing performance, she determined that the destination airport was adequate, and continued the approach to landing. Upon touchdown, she realized that the runway was wetter than anticipated, and applied maximum braking efforts, which included the application of the emergency brake system. Despite the use of maximum braking, the airplane “failed to decelerate at the normal rate.” The pilot initiated a right turn to decelerate, however, the airplane exited the departure end of the runway and impacted approach lighting and the airport perimeter fence, which resulted in substantial damage to the left wing. The pilot reported that there were no preaccident mechanical malfunctions or failures with the airplane that would have precluded normal operation. The automated weather observation station located on the airport reported that, about 9 minutes before the accident, the wind was from 090° at 3 knots, 7 statute miles visibility and light rain. ## Aircraft - Registration: N16DF (not matched to a registry record) - Reported make and model: EMBRAER EXECUTIVE AIRCRAFT INC EMB-505 - Category: Airplane - Serial number: 50500167 - Year built: 2013 - Airframe hours: 2396.4 - Engines: Pratt & Whitney Canada PW535E 3478 lbs thrust geared turbofan; Pratt & Whitney Canada PW535E 3478 lbs thrust geared turbofan - Damage: Substantial damage - Flight: Personal, Part 91 - Operator: Solairus Aviation - Registered owner: Skystallion LLC - Airworthiness certificate: Standard, Normal - Last inspection: Continuous airworthiness, August 22, 2022, 60.6 hours before - Departed: JAC, Jackson, WY - Destination: Same as departure - Flight plan: IFR - Airport: HHR, Jack Northrop Fld/Hawthorne Muni, runway 25, 4,884 × 100 ft, asphalt - Equipment: Angle of attack indicator, Auto-pilot, Data recorder, Electronic flight bag or handheld device, Electronic multifunction display, Electronic primary flight display, Satellite tracking device, Stall warning system, ADS-B ## Flight crew As NTSB recorded them. NTSB leaves out names. - Pilot; age 35; injuries: none; airline transport; airplane ratings: multi-engine land, single-engine land, single-engine sea; instrument ratings: airplane; medical: class 1, without waivers/limitations; last flight review October 31, 2022; seat: left; restraint: 5-point; flight hours: 4,315 total, 3,599 as pilot in command, 26 in the last 90 days, 4 in the last 30 days ## Weather - Conditions: Visual (VMC), Night - Wind: 90° at 3 knots - Visibility: 7 statute miles - Lowest ceiling: 2,900 ft overcast - Temperature: 61 °F, dew point 55 °F - Altimeter: 29.93 inHg - Observed at: KHHR, 1 nm away - METAR: SPECI KHHR 280220Z 09003KT 7SM -RA FEW007 SCT013 OVC029 16/13 A2993 RMK AO2 RAB19 P0001 T01560133= ## 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 20221227021999A](https://openairdocs.org/incident/20221227021999A), Dec 27, 2022: Embraer EMB-505, Hawthorne, CA, Substantial damage. Narrative: flight plan was depart jackson hole arrive Hawthorne with lax as the alternate if needed. At 0053 PIC checked weather for hhr, calm no rain.… ## Docket (3 files) The files NTSB released with the investigation on April 20, 2023, on NTSB's docket system: https://data.ntsb.gov/Docket?ProjectID=106530. 7.5 MB in all. - Pilot/operator aircraft accident report, NTSB form 6120.1 (item 1, PDF, 11 pages, 5.9 MB): https://data.ntsb.gov/Docket/Document/docBLOB?ID=15265001&FileExtension=pdf&FileName=6120_Redacted-Rel.pdf - Record of conversation - pilot (item 2, PDF, 1 page, 67 KB): https://data.ntsb.gov/Docket/Document/docBLOB?ID=15264173&FileExtension=pdf&FileName=ROC%20Pilot-Rel.pdf - Photo array (item 3, PDF, 4 pages, 4 photos, 1.5 MB): https://data.ntsb.gov/Docket/Document/docBLOB?ID=15265086&FileExtension=pdf&FileName=photo%20array-Rel.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.