# NTSB CHI08LA143: Beech A36, N4605M, Norfolk, VA, May 24, 2008 - Type: NTSB accident investigation - Classification: Accident · No injuries · Limited investigation · Final report - Date: May 24, 2008, 14:00 local (18:00 UTC) - Place: Norfolk, VA - Coordinates: 36.750274, -76.219833 (estimated) - Nearby events: https://openairdocs.org/map.md?lat=36.7503&lon=-76.2198&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: 4 uninjured - Status: Completed, report August 12, 2010 - Report: Approved by Office Director - NTSB case key (mKey): 69025 - NTSB case page: https://web.ntsb.gov/investigations/?ntsbnumber=CHI08LA143 - NTSB report (PDF, downloads): https://data.ntsb.gov/carol-repgen/api/Aviation/ReportMain/GenerateNewestReport/69025/pdf - NTSB docket: https://data.ntsb.gov/Docket?ProjectID=69025 - Page: https://openairdocs.org/ntsb/CHI08LA143 ## Probable cause The failure of the left main landing gear tire for undetermined reasons. ## Findings NTSB's coded findings; those marked are part of the probable cause. - [Landing gear system: tire casing](https://openairdocs.org/ntsb-findings/01023244): Aircraft › Aircraft systems · Failure (probable cause); cases with it: [Beech A36, 1 case](https://openairdocs.org/ntsb-findings/01023244/cases.md?model=1151604), [All aircraft, 36 cases](https://openairdocs.org/ntsb-findings/01023244/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: Sys/Comp malf/fail (non-power)](https://openairdocs.org/ntsb-events/330); cases with it: [Beech A36, 4 cases](https://openairdocs.org/ntsb-events/330/sequence.md?model=1151604), [All aircraft, 994 cases](https://openairdocs.org/ntsb-events/330/sequence.md) - [Landing-landing roll: Runway excursion](https://openairdocs.org/ntsb-events/300) (defining event); cases with it: [Beech A36, 20 cases](https://openairdocs.org/ntsb-events/300/sequence.md?model=1151604), [All aircraft, 3,643 cases](https://openairdocs.org/ntsb-events/300/sequence.md) ## Analysis The flight touched down with a "squeak" on landing, and after about 50 feet of ground roll the left tire blew. The aircraft veered off the left side of the runway and struck the concrete base of a runway light, which was about 3-4 inches above the ground, resulting in the left wing rear spar fracture. The left tire was found flat after the accident and did not exhibit excessive wear or a "bullseye" type failure typical of a locked wheel. ## Factual narrative On May 24, 2008, approximately 1400 eastern daylight time, a Beechcraft A-36, operated by a commercial rated pilot, was substantially damaged when the airplane departed the left side of the runway after landing at Chesapeake Airport (KCPK), Norfolk, Virginia. Visual meteorological conditions prevailed at the time of the accident and the flight was was being conducted under the provisions of Title 14 Code of Federal Regulations (CFR) Part 91 without a flight plan. The pilot and three passengers were not injured during the accident. The local flight originated from Springfield, Tennessee, at 1100 central daylight time. The reported weather at the time of the accident was sky clear, visibility 10 miles, winds from 040 degrees at 7 knots, and altimeter of 29.97 inches of mercury. The flight had touched down and after about 50 feet of ground roll the left tire blew. The aircraft veered off the left side of the runway and hit a runway light and the concrete base, which was about 3-4 inches above the ground. The left wing rear spar was broken in half. The left tire was found flat after the accident and did not exhibit excessive wear or any "bullseye" type failure typical of a locked wheel. ## Aircraft - Registration: [N4605M](https://openairdocs.org/aircraft/N4605M), registered now, S/N E-1246, built 1978 (OpenAirDocs) - Reported make and model: BEECH A36 - Registry model: [Beech A36](https://openairdocs.org/model/beech-a36) (registry code 1151604) (OpenAirDocs) - Registry engine: [Continental IO-520 series](https://openairdocs.org/engine/continental-io-520-series) (registry code 17032, reciprocating) (OpenAirDocs) - Category: Airplane - Serial number: E-1246 - Airframe hours: 8063 - Engines: CONTINENTAL TSIO-520 300 horsepower reciprocating - Damage: Substantial damage - Flight: Personal, Part 91 - Airworthiness certificate: Standard, Normal - Last inspection: Annual, August 1, 2007 - Departed: M91, SPRINGFIELD, TN - Destination: KCPK, CHESAPEAKE, VA - Airport: KCPK, Chesapeake Regional Airport, runway 05, 5,500 × 100 ft, asphalt ## Flight crew As NTSB recorded them. NTSB leaves out names. - Pilot; age 61; injuries: none; flight instructor, flight engineer, commercial; airplane ratings: single-engine land, single-engine sea; medical: class 2, with waivers/limitations; last flight review March 1, 2008; seat: left; flight hours: 10,850 total, 237 in this make and model, 10,348 as pilot in command, 112 in the last 90 days, 53 in the last 30 days, 3 in the last 24 hours ## Weather - Conditions: Visual (VMC), Day - Wind: 40° at 7 knots - Visibility: 10 statute miles - Altimeter: 29.96 inHg - Observed at: KCPK ## 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 20080524837019A](https://openairdocs.org/incident/20080524837019A), May 24, 2008: Beech A36, Norfolk, VA, Substantial damage. (-23) The left tire blew during the landing roll-out. The pilot lost directional control and departed the left side of the runway, impacting with the contrete… ## Docket (5 files) The files NTSB released with the investigation on June 9, 2010, on NTSB's docket system: https://data.ntsb.gov/Docket?ProjectID=69025. 1.1 MB in all. - Pilot/Operator Aircraft Accident Report, NTSB Form 6120.1 (item 1, .PDF, 843 KB): https://data.ntsb.gov/Docket/Document/docBLOB?ID=40331006&FileExtension=.PDF&FileName=Pilot%2FOperator%20Aircraft%20Accident%20Report,%20NTSB%20Form%206120.1-Redacted.PDF - Photo 01. Break in rear spar (item 2, .PDF, 29 KB): https://data.ntsb.gov/Docket/Document/docBLOB?ID=40331007&FileExtension=.PDF&FileName=Photo%2001.%20%20Break%20in%20rear%20spar-Master.PDF - Photo 02. Left tire blowout (item 3, .PDF, 50 KB): https://data.ntsb.gov/Docket/Document/docBLOB?ID=40331008&FileExtension=.PDF&FileName=Photo%2002.%20%20Left%20tire%20blowout-Master.PDF - Photo 03. View of light pedestal (item 4, .PDF, 122 KB): https://data.ntsb.gov/Docket/Document/docBLOB?ID=40331009&FileExtension=.PDF&FileName=Photo%2003.%20%20View%20of%20light%20pedestal-Master.PDF - Photo 04. View of tire mark exiting runway (item 5, .PDF, 64 KB): https://data.ntsb.gov/Docket/Document/docBLOB?ID=40331010&FileExtension=.PDF&FileName=Photo%2004.%20%20View%20of%20tire%20mark%20exiting%20runway%20-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.