# NTSB MIA98LA057: Cessna 170, N48021, Orlando, FL, January 10, 1998 - Type: NTSB accident investigation - Classification: Accident · No injuries · Limited investigation · Final report - Date: January 10, 1998, 12:40 local (17:40 UTC) - Place: Orlando, FL - Coordinates: 28.549388, -81.301002 (estimated) - Nearby events: https://openairdocs.org/map.md?lat=28.5494&lon=-81.3010&mi=10 - Phase of flight: [Landing](https://openairdocs.org/ntsb-phases/550) (OpenAirDocs' grouping) - Highest injury: No injuries - Injuries: 3 uninjured - Status: Completed, report May 21, 1998 - Report: Approved by Office Director - NTSB case key (mKey): 38444 - NTSB case page: https://web.ntsb.gov/investigations/?ntsbnumber=MIA98LA057 - NTSB report (PDF, downloads): https://data.ntsb.gov/carol-repgen/api/Aviation/ReportMain/GenerateNewestReport/38444/pdf - Page: https://openairdocs.org/ntsb/MIA98LA057 ## Probable cause failure of the the left brake to operate, due to a bad o-ring; and subsequent failure of the pilot to maintain directional control of the airplane during landing rollout, resulting in a ground loop and subsequent on-ground encounter with terrain. ## Sequence of events In NTSB's coding before 2008 (https://www.ntsb.gov/GILS/Documents/codman.pdf). - Loss of control - on ground/water, landing - roll - weather condition - crosswind (contributing factor) - landing gear,normal brake system - failure (cause) - directional control - not maintained, pilot in command (cause) - ground loop/swerve - encountered, pilot in command - Main gear collapsed, landing - roll - landing gear,main gear - overload - On ground/water encounter with terrain/water, landing - roll ## Analysis The pilot was making a wheel landing on runway 25 with the wind from 320 degrees at 5 knots. During the landing, the airplane started to veer to the right. Reportedly, the pilot lost directional control, and the airplane continued to the right. Subsequently, the left main gear collapsed, and the left wing collided with the ground and was damaged. During repair, the left brake master cylinder was determined to be inoperative due to a bad o-ring. ## Factual narrative On January 10, 1998, about 1240 eastern standard time, a Cessna 170, N48021, registered to a private owner, operating as a 14 CFR Part 91 personal flight, ground looped on landing at Orlando Executive Airport, Orlando, Florida. Visual meteorological conditions prevailed and no flight plan was filed. The airplane sustained substantial damage. The commercial pilot and two passengers were not injured. The flight originated from Leesburg, Florida, about 20 minutes before the accident. The pilot stated he was making a wheel landing to runway 25. The airplane started to veer to the right on landing rollout. He did not attempt a go-around. He lost directional control. The airplane continued to the right, collapsed the left main landing gear, and the left wing collided with the ground sustaining structural damage. The pilot contacted the NTSB on March 23, 1998. He stated his airplane had been repaired and returned to service. During the repair of the airplane by Aeromasters, it was determined that the left brake master cylinder was inoperative due to a bad o-ring. ## Aircraft - Registration: [N48021](https://openairdocs.org/deregistered/N48021-2023-04-01), registration cancelled 2023-04-01, S/N 27087, built 1956 (OpenAirDocs) - Reported make and model: Cessna 170 - Registry model: [Cessna 170B](https://openairdocs.org/model/cessna-170b) (registry code 2072306) (OpenAirDocs) - Registry engine: [Continental 0-300 series](https://openairdocs.org/engine/continental-0-300-series) (registry code 17022, reciprocating) (OpenAirDocs) - Category: Airplane - Serial number: 27087 - Airframe hours: 10951 - Engines: Continental O-300-A 150 horsepower reciprocating - Damage: Substantial damage - Flight: Personal, Part 91 - Registered owner: Clark L. Morris - Airworthiness certificate: Standard, Normal - Last inspection: Annual, April 8, 1997, 117 hours before - Departed: LEE, LEESBURG, FL - Destination: ORL - Airport: ORL, Orlando Executive, runway 25, 5,998 × 150 ft, asphalt ## Flight crew As NTSB recorded them. NTSB leaves out names. - Pilot; age 40; flight instructor, commercial; airplane ratings: single-engine land, multi-engine land; instrument ratings: airplane; medical: class 2, valid medical--no waivers/lim.; seat: right; flight hours: 1,248 total, 412 in this make and model, 1,144 as pilot in command, 42 in the last 90 days, 25 in the last 30 days, 2 in the last 24 hours ## Weather - Conditions: Visual (VMC), Day - Wind: 320° at 5 knots - Visibility: 10 statute miles - Lowest ceiling: none - Temperature: 68 °F, dew point 45 °F - Altimeter: 30.00 inHg - Observed at: ORL ## 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 19980110000209A](https://openairdocs.org/incident/19980110000209A), Jan 10, 1998: Cessna 170B, Orlando, FL, Substantial damage. Ground looped on landing roll. Left brake master cylinder inoperative. (-23) on January 10, 1998, at 1300 EST, a Cessna N48021, owned and operatedby Mr. Clark… ## Other investigations on N48021 (1) 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 MIA93LA126](https://openairdocs.org/ntsb/MIA93LA126), May 21, 1993: Cessna 170B (N48021), Titusville, FL, substantial damage. Probable cause: THE PILOT-IN-COMMAND'S FAILURE TO COMPENSATE FOR WIND CONDITIONS, RESULTING IN LOSS OF DIRECTIONAL CONTROL DURING LANDING ROLL. 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.