# NTSB FTW96LA295: Cessna T210L, N761YL, Terrell, TX, July 7, 1996 - Type: NTSB accident investigation - Classification: Accident · No injuries · Limited investigation · Final report - Date: July 7, 1996, 10:30 local (15:30 UTC) - Place: Terrell, TX - Coordinates: 32.7299, -96.289016 (estimated) - Nearby events: https://openairdocs.org/map.md?lat=32.7299&lon=-96.2890&mi=10 - Phase of flight: [Landing](https://openairdocs.org/ntsb-phases/550) (OpenAirDocs' grouping) - Highest injury: No injuries - Injuries: 2 uninjured - Status: Completed, report December 23, 1996 - Report: Approved by Office Director - NTSB case key (mKey): 19900 - NTSB case page: https://web.ntsb.gov/investigations/?ntsbnumber=FTW96LA295 - NTSB report (PDF, downloads): https://data.ntsb.gov/carol-repgen/api/Aviation/ReportMain/GenerateNewestReport/19900/pdf - Page: https://openairdocs.org/ntsb/FTW96LA295 ## Probable cause the mechanic's improper installation of the left main landing gear brake line, which resulted in chaffing and failure of the brake line, loss of hydraulic fluid, and inoperative brake(s). ## Sequence of events In NTSB's coding before 2008 (https://www.ntsb.gov/GILS/Documents/codman.pdf). - Airframe/component/system failure/malfunction, landing - roll - hydraulic system,line - misrouted (cause) - maintenance,installation - improper, other maintenance personnel (cause) - hydraulic system,line - chafed (cause) - fluid,hydraulic - leak (cause) - landing gear,normal brake system - inoperative (cause) - Overrun, landing - roll - On ground/water encounter with terrain/water, landing - roll ## Analysis During a repair of the airplane's left brake, the mechanic manufactured a hydraulic brake line and installed it; however, he did not bleed the brake nor perform a landing gear retraction test. A second mechanic was hired to add brake fluid and bleed the brake. The private pilot hired a flight instructor to get him current and qualified in the airplane, which he was purchasing. The flight instructor was also an A&P mechanic, and he was requested to check out the airplane for maintenance defects. During taxi, the flight instructor determined the left brake needed further bleeding; however, it operated satisfactory. After completing three touch and go landings, the private pilot flew the airplane to Air Park East Airport to correct all maintenance anomalies found during the flight. During the landing roll on runway 13, with the flight instructor manipulating the controls, the left brake failed, and the airplane overran the departure end of the runway, separating its nose landing gear and damaging the fire wall. Examination of the airplane revealed that the left brake line was fractured where it had been chaffing. ## Factual narrative On July 7, 1996, at 1030 central daylight time, a Cessna T210L, N761YL, owned and operated by a private owner, as a Title 14 CFR Part 91 instructional flight, was substantially damaged during landing roll near Terrell, Texas. Visual meteorological conditions prevailed, and a flight plan was not filed. The commercial flight instructor and private pilot rated student were not injured. The flight originated from Rockwall Municipal Airport, about 60 minutes before the accident. According to the private pilot, during the purchasing of the airplane, he found a pool of brake fluid under the left brake caliper. The seller of the airplane hired an A&P mechanic to repair the brake. During the repair of the brake, the mechanic manufactured a hydraulic brake line and installed it; however, he did not bleed the brake nor perform a landing gear retraction test. A second mechanic was hired to add brake fluid and bleed the brake. The private pilot had not flown in over four years. He hired the flight instructor to get him current and qualified in the airplane. The flight instructor was also an A&P mechanic, and he was requested to check out the airplane for maintenance defects. During taxi, the flight instructor determined the left brake needed further bleeding; however, it operated satisfactory, and no maintenance was performed prior to takeoff. After completing three touch and go landings at Terrell Municipal Airport, the private pilot flew the airplane to Air Park East Airport to correct all maintenance anomalies found during the flight. During the landing roll on runway 13, with the flight instructor manipulating the controls, the left brake failed. The airplane overran the departure end of the runway, and crossed a ditch separating the nose landing gear and damaging the firewall. Examination of the airplane by the FAA inspector revealed that the left brake line was fractured due to the improper routing, which resulted in chaffing during gear retraction. ## Aircraft - Registration: [N761YL](https://openairdocs.org/deregistered/N761YL-2008-01-18), registration cancelled 2008-01-18, S/N 21060428, built 1974 (OpenAirDocs) - Reported make and model: Cessna T210L - Registry model: [Cessna T210L](https://openairdocs.org/model/cessna-t210l) (registry code 2073449) (OpenAirDocs) - Registry engine: [Continental TSIO-520 series](https://openairdocs.org/engine/continental-tsio-520-series) (registry code 17040, reciprocating) (OpenAirDocs) - Category: Airplane - Serial number: 21060428 - Airframe hours: 2180 - Engines: Continental TSIO-520-H 285 horsepower reciprocating - Damage: Substantial damage - Flight: Instructional, Part 91 - Registered owner: Robert L. Yunaska - Airworthiness certificate: Standard, Normal - Last inspection: Annual, February 15, 1996, 10 hours before - Departed: TRL - Destination: 1F7 - Airport: 1F7, Airpark East, runway 13, 2,630 × 30 ft, asphalt ## Flight crew As NTSB recorded them. NTSB leaves out names. - Pilot; age 24; commercial; airplane ratings: single-engine land; instrument ratings: airplane; medical: class 2, valid medical--no waivers/lim.; seat: right; flight hours: 2,500 total, 1,500 in this make and model, 2,400 as pilot in command, 300 in the last 90 days, 100 in the last 30 days, 3 in the last 24 hours ## Weather - Conditions: Visual (VMC), Day - Wind: 220° at 11 knots - Visibility: 15 statute miles - Lowest ceiling: none - Temperature: 93 °F, dew point 70 °F - Altimeter: 29.00 inHg - Observed at: DAL, 35 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 19960707046219A](https://openairdocs.org/incident/19960707046219A), Jul 7, 1996: Cessna T210L, Dallas, TX, No damage. (-23) Aircraft was on an instructional flight. On landing the left brake failed and the aircraft ran off the end of the runway and stopped in a four foot… ## Other investigations on N761YL (2) 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 MIA08WA058](https://openairdocs.org/ntsb/MIA08WA058), Dec 26, 2007: Cessna T210L (N761YL), Ocumare del Tuy, Venezuela, substantial damage - [NTSB NYC78FHA33](https://openairdocs.org/ntsb/NYC78FHA33), Sep 1, 1978: Cessna 210T (N761YL), Princeton, NJ, substantial damage 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.