# NTSB NYC98LA010: Sukhoi SU-29, N929CB, Williamstown, NJ, October 11, 1997 - Type: NTSB accident investigation - Classification: Accident · No injuries · Limited investigation · Final report - Date: October 11, 1997, 16:00 local (20:00 UTC) - Place: Williamstown, NJ - Location: 39.6842° N, 74.9697° W: Placed by OpenAirDocs: center of Williamstown, NJ, within about 6 miles (OpenAirDocs) - Nearby events: https://openairdocs.org/map.md?lat=39.6842&lon=-74.9697&mi=10 - Phase of flight: [Landing](https://openairdocs.org/ntsb-phases/550) (OpenAirDocs' grouping) - Highest injury: No injuries - Injuries: 2 uninjured - Status: Completed, report January 28, 2000 - Report: Approved by Office Director - NTSB case key (mKey): 39487 - NTSB case page: https://web.ntsb.gov/investigations/?ntsbnumber=NYC98LA010 - NTSB report (PDF, downloads): https://data.ntsb.gov/carol-repgen/api/Aviation/ReportMain/GenerateNewestReport/39487/pdf - Page: https://openairdocs.org/ntsb/NYC98LA010 ## Probable cause The pilot misjudged his altitude and airspeed. ## Sequence of events In NTSB's coding before 2008 (https://www.ntsb.gov/GILS/Documents/codman.pdf). - Overrun, landing - roll - terrain condition - grass - airspeed - misjudged, pilot in command (cause) - altitude - misjudged, pilot in command (cause) - On ground/water collision with object, landing - roll - object - tree(s) ## Analysis The airplane touched down on the 2,400 foot turf runway at a point approximately 1,400 feet beyond the approach end. The airplane overran the runway and came to rest in a tree line. The pilot said, 'We screwed up...landed a little too fast and a little too long.' The airplane was certificated with treadless tires. The pilot reported the accident could have been avoided by checking the '...condition of a grass runway in reference to dryness of grass when landing with aircraft with certified bald tires, touchdown sooner, [and] leave more rollout space.' ## Factual narrative On October 11, 1997, at 1600 eastern daylight time, a Sukoi SU-29, N929CB, was substantially damaged after landing at the Southern Cross Airport, Williamstown, New Jersey. The certificated commercial pilot and commercial pilot rated passenger were uninjured. Visual meteorological conditions prevailed for the personal flight that originated at Woodbine, New Jersey, at 1500. No flight plan was filed for the flight conducted under 14 CFR Part 91. According to an FAA Inspector, the airplane touched down on the 2,400 foot turf runway at a point approximately 1,400 feet beyond the approach end. The airplane overran the runway and came to rest in a tree line. One of 3 propeller blades separated, and the airplane sustained damage to both wings and the fuselage. According to the Inspector's report, the pilot stated he had "...probably been a little too fast on the approach (90 knots) [and] ran out of runway and went into a brush and tree area." In a telephone interview, the pilot said, "We screwed up...landed a little too fast and a little too long." In the Owner Safety Recommendation (How Could This Accident Have Been Prevented) section of the NTSB Form 6120.1/2, the pilot recommended: "Check condition of a grass runway in reference to dryness of grass when landing with aircraft with certified bald tires, touchdown sooner, [and] leave more rollout space." The pilot reported the airplane had no mechanical deficiencies. ## Aircraft - Registration: [N929CB](https://openairdocs.org/aircraft/N929CB), registered now, S/N 76-05, built 1994 (OpenAirDocs) - Reported make and model: Sukhoi SU-29 - Registry model: [Sukhoi SU-29](https://openairdocs.org/model/sukhoi-su-29) (registry code 9850103) (OpenAirDocs) - Registry engine: [Amateur-built UNKNOWN ENG](https://openairdocs.org/engine/amateur-built-unknown-eng) (registry code 99999) (OpenAirDocs) - Category: Airplane - Serial number: 76-05 - Airframe hours: 305 - Engines: Vendeneyev M14P 360 horsepower reciprocating - Damage: Substantial damage - Flight: Personal, Part 91 - Registered owner: Richard D. Stocker - Airworthiness certificate: Special, Experimental (Special) - Last inspection: Annual, September 11, 1997, 11 hours before - Departed: 1N4, WOODBINE, NJ - Destination: CO1 - Airport: CO1, Southern Cross Airport, runway 27, 2,400 × 250 ft, grass/turf ## Flight crew As NTSB recorded them. NTSB leaves out names. - Pilot; age 32; commercial; airplane ratings: single-engine land, multi-engine land; instrument ratings: airplane; medical: class 3, valid medical--no waivers/lim.; seat: rear; flight hours: 2,967 total, 220 in this make and model ## Weather - Conditions: Visual (VMC), Day - Wind: 10° at 8 knots - Visibility: 15 statute miles - Lowest ceiling: none - Temperature: 73 °F, dew point 46 °F - Altimeter: 30.00 inHg - Observed at: MIV, 10 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 19971011031269A](https://openairdocs.org/incident/19971011031269A), Oct 11, 1997: Cloucester Coun, NJ, Substantial damage. Acft over ran the rwy on landing and struckan embankment, Cloucester county, NJ. 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.