# NTSB NYC00LA211: Cessna 150, N6639F, Baltimore, OH, July 22, 2000 - Type: NTSB accident investigation - Classification: Accident · No injuries · Limited investigation · Final report - Date: July 21, 2000, 20:20 local (Jul 22, 2000, 00:20 UTC) - Place: Baltimore, OH - Coordinates: 39.839729, -82.599105 (estimated) - Nearby events: https://openairdocs.org/map.md?lat=39.8397&lon=-82.5991&mi=10 - Phase of flight: [Takeoff](https://openairdocs.org/ntsb-phases/300) (OpenAirDocs' grouping) - Highest injury: No injuries - Injuries: 1 uninjured - Status: Completed, report July 17, 2001 - Report: Approved by Office Director - NTSB case key (mKey): 49828 - NTSB case page: https://web.ntsb.gov/investigations/?ntsbnumber=NYC00LA211 - NTSB report (PDF, downloads): https://data.ntsb.gov/carol-repgen/api/Aviation/ReportMain/GenerateNewestReport/49828/pdf - Page: https://openairdocs.org/ntsb/NYC00LA211 ## Probable cause The pilot's delay in aborting the takeoff. ## Sequence of events In NTSB's coding before 2008 (https://www.ntsb.gov/GILS/Documents/codman.pdf). - Overrun, takeoff - aborted - aborted takeoff - delayed, pilot in command (cause) - In flight collision with terrain/water, takeoff - aborted ## Analysis The student pilot performed all items on the checklist, and did not notice any discrepancies during the run-up. He taxied onto a 3,250-foot long, 50-foot wide, turf runway. The student pilot held the brakes, applied power, and performed a soft field takeoff. He rotated the airplane at 55 mph, and then lowered the nose to gain airspeed. About 5-10 feet in the air, at 62 mph, the airplane felt like it did not have the usual power. The student pilot observed a tachometer indication of 2,250 rpm, and the airplane did not gain airspeed or altitude. The student pilot aborted the takeoff with approximately 1,000 feet of runway remaining. The airplane touched down, skidded on wet grass, traveled off the end of the runway, and struck trees. Examination of the wreckage did not reveal any pre-impact mechanical malfunctions. Review of a Cessna 150 manual revealed that during takeoff, the engine should run smoothly at 2,375 to 2,475 rpm with carburetor heat off. ## Factual narrative On July 21, 2000, about 2020 Eastern Daylight Time, a Cessna 150, N6639F, was substantially damaged while departing from Miller Farm Airport (7B4), Baltimore, Ohio. The student pilot was not injured. Visual meteorological conditions prevailed, and no flight plan was filed for the solo instructional flight conducted under 14 CFR Part 91. The student pilot stated that prior to takeoff, he performed all items on his checklist, and did not notice any discrepancies during the run-up. The student pilot taxied onto Runway 27 (a 3,250-foot long, 50-foot wide, turf runway), held the brakes, applied power, and performed a soft field takeoff. He rotated the airplane at 55 mph, and then lowered the nose to gain airspeed. About 5-10 feet in the air, at 62 mph, the airplane felt like it did not have the usual power. The student pilot observed a tachometer indication of 2,250 rpm, and the airplane did not gain airspeed or altitude. He aborted the takeoff with approximately 1,000 feet of runway remaining. The airplane touched down, skidded on the wet turf, traveled off the end of the runway, and struck trees. According to the flight instructor, the student pilot was "signed off" for solo flight. The student pilot received his primary instruction at the flight instructor's private airstrip. On the day of the accident, the student pilot departed the private airstrip about 1930, and landed uneventfully at 7B4. When asked about the airplane's engine, the instructor stated "the engine runs fine." He did not know why the student pilot perceived inadequate acceleration. A Federal Aviation Administration inspector stated that he was familiar with 7B4. Months before, the inspector aborted a takeoff on the same runway in a Cessna 150. At the time, the grass was taller than usual, and he did not feel the Cessna 150 was accelerating properly. After the aborted takeoff, the inspector performed a short field takeoff uneventfully. The inspector did not find any pre-impact mechanical malfunctions with the airplane. Review of a Cessna 150 manual revealed: "It is important to check full-throttle engine operation early in the takeoff run. Any signs of rough engine operation or sluggish engine acceleration is good cause for discontinuing the takeoff. If this occurs, you are justified in making a thorough full-throttle, static run-up before takeoff is attempted. The engine should run smoothly and turn approximately 2375 to 2475 rpm with carburetor heat off." According to a Carburetor Icing Probability Chart, the airplane was subject to "Serious Icing At Glide Power." ## Aircraft - Registration: [N6639F](https://openairdocs.org/deregistered/N6639F-2000-12-04), registration cancelled 2000-12-04, S/N 15063239 (OpenAirDocs) - Reported make and model: Cessna 150 - Registry model: [Cessna 150F](https://openairdocs.org/model/cessna-150f) (registry code 2071814) (OpenAirDocs) - Category: Airplane - Serial number: 15063239 - Airframe hours: 5001 - Engines: Continental O-200 100 horsepower reciprocating - Damage: Substantial damage - Flight: Instructional, Part 91 - Registered owner: Jack Willard - Airworthiness certificate: Standard, Normal - Last inspection: Annual, December 4, 1999, 90 hours before - Departed: 7B4 - Destination: NONE, LANCASTER, OH - Airport: 7B4, Miller Farm Airport, runway 27, 3,250 × 50 ft, grass/turf ## Flight crew As NTSB recorded them. NTSB leaves out names. - Pilot; age 41; student; medical: class 3, valid medical--no waivers/lim.; seat: left; flight hours: 32 total, 32 in this make and model, 15 as pilot in command, 23 in the last 90 days, 5 in the last 30 days, 1 in the last 24 hours ## Weather - Conditions: Visual (VMC), Day - Wind: 310° at 7 knots - Visibility: 10 statute miles - Lowest ceiling: none - Temperature: 73 °F, dew point 52 °F - Altimeter: 29.00 inHg - Observed at: CMH, 15 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 20000721043019A](https://openairdocs.org/incident/20000721043019A), Jul 21, 2000: Cessna 150F, Machias, ME, Substantial damage. (-23) During takeoff from a sod airport, the student pilot made the decision to abort the takeoff after passing the point on the runway that would have allowed… ## Other investigations on N6639F (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 FTW73DRJ12](https://openairdocs.org/ntsb/FTW73DRJ12), Sep 3, 1972: Cessna 150F (N6639F), Texarkana, AR, 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.