# NTSB CEN20CA284: Beech 95 55, N1332Z, Spring, TX, July 14, 2020 - Type: NTSB accident investigation - Classification: Accident · No injuries · Class 4 · Data collection · Final report - Date: July 14, 2020, 12:40 local (17:40 UTC) - Place: Spring, TX - Coordinates: 30.054166, -95.551666 - Nearby events: https://openairdocs.org/map.md?lat=30.0542&lon=-95.5517&mi=10 - Phase of flight: [Takeoff](https://openairdocs.org/ntsb-phases/300) (OpenAirDocs' grouping) - Defining event: [Takeoff-rejected takeoff: Loss of control on ground](https://openairdocs.org/ntsb-events/230) - Highest injury: No injuries - Injuries: 2 uninjured - Status: Completed - Report: Approved by Office Director - Investigation class: Class 4 - Basic report with no Prelim publish - NTSB office: Central Region - Parties: FAA Flight Standards - NTSB case key (mKey): 101606 - NTSB case page: https://web.ntsb.gov/investigations/?ntsbnumber=CEN20CA284 - NTSB report (PDF, downloads): https://data.ntsb.gov/carol-repgen/api/Aviation/ReportMain/GenerateNewestReport/101606/pdf - NTSB docket: https://data.ntsb.gov/Docket?ProjectID=101606 - Page: https://openairdocs.org/ntsb/CEN20CA284 ## Probable cause Excessive wear of the left brake liners which reduced brake effectiveness resulting in a runway excursion. ## Findings NTSB's coded findings; those marked are part of the probable cause. - [Landing gear system: brake](https://openairdocs.org/ntsb-findings/01023242): Aircraft › Aircraft systems · Fatigue/wear/corrosion (probable cause); cases with it: [Beech 95-55, 1 case](https://openairdocs.org/ntsb-findings/01023242/cases.md?model=1152702), [All aircraft, 297 cases](https://openairdocs.org/ntsb-findings/01023242/cases.md) - [Maintenance](https://openairdocs.org/ntsb-findings/02062000): Personnel issues › Task performance · Maintenance personnel; cases with it: [Beech 95-55, 1 case](https://openairdocs.org/ntsb-findings/02062000/cases.md?model=1152702), [All aircraft, 143 cases](https://openairdocs.org/ntsb-findings/02062000/cases.md) ## Sequence of events The events NTSB coded, in order, by phase of flight. The defining event best describes what happened. - [Takeoff-rejected takeoff: Loss of control on ground](https://openairdocs.org/ntsb-events/230) (defining event); cases with it: [Beech 95-55, 1 case](https://openairdocs.org/ntsb-events/230/sequence.md?model=1152702), [All aircraft, 4,585 cases](https://openairdocs.org/ntsb-events/230/sequence.md) - [Takeoff-rejected takeoff: Runway excursion](https://openairdocs.org/ntsb-events/300); cases with it: [Beech 95-55, 2 cases](https://openairdocs.org/ntsb-events/300/sequence.md?model=1152702), [All aircraft, 3,643 cases](https://openairdocs.org/ntsb-events/300/sequence.md) - [Takeoff-rejected takeoff: Collision with terr/obj (non-CFIT) ](https://openairdocs.org/ntsb-events/470); cases with it: [Beech 95-55, 1 case](https://openairdocs.org/ntsb-events/470/sequence.md?model=1152702), [All aircraft, 10,189 cases](https://openairdocs.org/ntsb-events/470/sequence.md) ## Analysis The cabin entry door popped open during the takeoff roll. The pilot immediately rejected the takeoff; however, the airplane did not slow down. As the pilot attempted to exit onto a taxiway at the end of the runway, the airplane departed the pavement and came to rest in a ditch causing substantial damage to the forward fuselage, and damage to nose gear and propellers. During a postaccident inspection, a Federal Aviation Administration inspector determined that the left main landing gear brake disc was discolored consistent with overheating. The brake liners were worn at or beyond service limits. The right main landing gear brake disc and liners remained within service limits; although, the disc was warped. No other anomalies were observed. ## Aircraft - Registration: [N1332Z](https://openairdocs.org/aircraft/N1332Z), registered now, S/N TC-141, built 1961 (OpenAirDocs) - Reported make and model: Beech 95 55 - Registry model: [Beech 95-55](https://openairdocs.org/model/beech-95-55) (registry code 1152702) (OpenAirDocs) - Registry engine: [Continental I0-470 series](https://openairdocs.org/engine/continental-i0-470-series) (registry code 17027, reciprocating) (OpenAirDocs) - Category: Airplane - Serial number: TC-141 - Year built: 1961 - Airframe hours: 6218.8 - Engines: Continental Motors IO-470 260 horsepower reciprocating; Continental Motors IO-470 260 horsepower reciprocating - Damage: Substantial damage - Flight: Instructional, Part 91 - Operator: TexasFlight - Registered owner: Up And Up Aviation LLC - Airworthiness certificate: Standard, Normal - Last inspection: Annual, March 26, 2020, 148 hours before - Departed: DWH, Spring, TX - Destination: DWH, Spring, TX - Airport: DWH, David Wayne Hooks Memorial, runway 17R, 7,009 × 100 ft, asphalt - Equipment: Stall warning system, ADS-B ## Flight crew As NTSB recorded them. NTSB leaves out names. - Flight instructor; age 27; injuries: none; flight instructor, commercial; airplane ratings: multi-engine land, single-engine land; instrument ratings: airplane; medical: class 1, without waivers/limitations; last flight review May 24, 2019; seat: right; restraint: 3-point; flight hours: 686 total, 246 in this make and model, 591 as pilot in command, 136 in the last 90 days, 28 in the last 30 days, 0 in the last 24 hours - Pilot; age 46; injuries: none; airline transport; airplane ratings: single-engine land; medical: class 1, with waivers/limitations; last flight review January 10, 2020; seat: left; restraint: 3-point; flight hours: 4,352 total, 954 in this make and model, 3,900 as pilot in command, 49 in the last 90 days, 19 in the last 30 days, 0 in the last 24 hours ## Weather - Conditions: Visual (VMC), Day - Wind: 190° at 8 knots - Visibility: 10 statute miles - Lowest ceiling: none - Temperature: 91 °F, dew point 72 °F - Altimeter: 29.96 inHg - Observed at: DWH, 1 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 20200714011499A](https://openairdocs.org/incident/20200714011499A), Jul 14, 2020: Beech 95-55, Tomball, TX, Substantial damage. The listed aircraft was cleared to depart rwy 17R from taxiway charlie. During the takeoff roll, the aircraft cabin door became unlatched and opened just… ## Docket (9 files) The files NTSB released with the investigation on October 9, 2020, on NTSB's docket system: https://data.ntsb.gov/Docket?ProjectID=101606. 66.8 MB in all. - Pilot/operator aircraft accident report, NTSB form 6120.1 (item 1, PDF, 9 pages, 21.2 MB): https://data.ntsb.gov/Docket/Document/docBLOB?ID=10057230&FileExtension=pdf&FileName=Pilot-Operator%20Report%20--%20CEN20CA284%20(redacted)-Rel.pdf - Flight instructor statement (item 2, PDF, 1 page, 85 KB): https://data.ntsb.gov/Docket/Document/docBLOB?ID=10039103&FileExtension=pdf&FileName=CFI%20Statement%20(redacted)-Rel.pdf - Pilot statement (item 3, PDF, 1 page, 7.1 MB): https://data.ntsb.gov/Docket/Document/docBLOB?ID=10038871&FileExtension=pdf&FileName=Pilot%20Statement%20(redacted)-Rel.pdf - Accident airplane photos (item 4, PDF, 8 pages, 1.1 MB): https://data.ntsb.gov/Docket/Document/docBLOB?ID=10053451&FileExtension=pdf&FileName=Accident%20Report%20Photos%20--%20CEN20CA284-Rel.pdf - Conversation summary -- FAA inspector (item 5, PDF, 1 page, 48 KB): https://data.ntsb.gov/Docket/Document/docBLOB?ID=10057165&FileExtension=pdf&FileName=ROC%20--%20FAA%20(Carl%20Thomas)%20--%2006Aug2020-Rel.pdf - FAA airport diagram / chart supplement -- kdwh (item 6, PDF, 3 pages, 227 KB): https://data.ntsb.gov/Docket/Document/docBLOB?ID=10056820&FileExtension=pdf&FileName=FAA%20Arpt%20Diagram_Chart%20Supplement%20--%20KDWH-Rel.pdf - Maintenance records -- airframe log (item 7, PDF, 11 pages, 36.5 MB): https://data.ntsb.gov/Docket/Document/docBLOB?ID=10057542&FileExtension=pdf&FileName=Maintenance%20Records%20--%20Airframe%20(redacted)-Rel.pdf - Maintenance manual (excerpt) -- landing gear_wheels and brakes (item 8, PDF, 6 pages, 58 KB): https://data.ntsb.gov/Docket/Document/docBLOB?ID=10056811&FileExtension=pdf&FileName=Maintenance%20Manual%20(Excerpt)%20--%20Landing%20Gear_Wheels%20and%20Brakes-Rel.pdf - Pilot's operating handbook (excerpt) -- takeoff performance (item 9, PDF, 3 pages, 426 KB): https://data.ntsb.gov/Docket/Document/docBLOB?ID=10057796&FileExtension=pdf&FileName=Pilot%20Operating%20Handbook%20BE95-55%20(Excerpt)%20--%20Section%20V_Performance_Takeoff%20Distance-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.