# NTSB NYC03LA172: Mooney M20B, N33EM, Leonardtown, MD, August 2, 2003 - Type: NTSB accident investigation - Classification: Accident · Minor injuries · Limited investigation · Final report - Date: August 2, 2003, 09:40 local (13:40 UTC) - Place: Leonardtown, MD - Coordinates: 38.315277, -76.550003 - Nearby events: https://openairdocs.org/map.md?lat=38.3153&lon=-76.5500&mi=10 - Phase of flight: [Initial climb](https://openairdocs.org/ntsb-phases/350) (OpenAirDocs' grouping) - Highest injury: Minor injuries - Injuries: 1 minor - Status: Completed, report July 29, 2004 - Report: Approved by Office Director - Parties: FAA/FSDO - NTSB case key (mKey): 57616 - NTSB case page: https://web.ntsb.gov/investigations/?ntsbnumber=NYC03LA172 - NTSB report (PDF, downloads): https://data.ntsb.gov/carol-repgen/api/Aviation/ReportMain/GenerateNewestReport/57616/pdf - NTSB docket: https://data.ntsb.gov/Docket?ProjectID=57616 - Page: https://openairdocs.org/ntsb/NYC03LA172 ## Probable cause A loss of engine power due to water contamination of the fuel. A factor was the fuel cap not being secured to the tank. ## Sequence of events In NTSB's coding before 2008 (https://www.ntsb.gov/GILS/Documents/codman.pdf). - Loss of engine power, takeoff - initial climb - fluid,fuel - contamination,water (cause) - fuel system,cap - not secured (contributing factor) - Forced landing, emergency landing after takeoff - On ground/water encounter with terrain/water, emergency landing - terrain condition - grass - terrain condition - soft - Gear collapsed, landing - roll ## Analysis Shortly after takeoff, at about 150 feet agl, the airplane's engine surged and then lost complete power. The pilot initiated an immediate left turn and performed a forced landing to a field. Examination of the airplane revealed that the left wing fuel filler cap did not seat correctly into its fuel tank fitting. A sample of fuel from the left tank revealed "several ounces" of water. Samples of fuel taken from the carburetor bowl and engine driven fuel pump also contained water, and corrosion was noted on the pump. A review of recorded precipitation totals from an airport 7 miles east of where the airplane was based, for a period extending two weeks prior to the accident, revealed 2.3 inches of rain had fallen in the area. ## Factual narrative On August 2, 2003, at 0940 eastern daylight time, a Mooney M20B, N33EM, was substantially damaged during a forced landing after a takeoff from Duke Regional Airport (2W6), Leonardtown, Maryland. The certificated airline transport pilot received minor injuries. Visual meteorological conditions prevailed, and no flight plan was filed for the flight to Shannon Airport (EZF), Fredericksburg, Virginia. The personal flight was conducted under 14 CFR Part 91. According to the pilot, the purpose of the flight was to return the airplane to Shannon to have problems with the landing gear and airspeed indicating system corrected. In a written statement, the pilot stated that he performed a preflight and run-up inspection prior to his departure, during which, he noted no anomalies. After departure from runway 29, the pilot was unable to unlock the gear latch to retract the landing gear. As he continued to try to raise the gear, at 150 feet agl, the engine surged and then lost complete power. The propeller continued to windmill, and the pilot initiated an immediate left turn to locate a suitable landing area. After he turned the airplane approximately 90 degrees, the pilot located relatively flat terrain and prepared for a forced landing. He reduced the airspeed to just above stall speed (65 mph) and kept the left wing low to absorb the impact. During the landing, the airplane stopped quickly as the right main landing gear retracted and spun the airplane to the right, about 50 degrees from the touchdown heading. In a telephone interview, the pilot stated that when the engine lost power, it sounded as if it "was not getting fuel." He reported that he last fueled the airplane about two weeks prior to the accident, at which time, he topped off the tanks. Since the fueling, he made two flights which totaled about 40 minutes in duration. The pilot also stated that he sumped the fuel tanks during the preflight inspection and noted no water or contamination. The pilot reported 7,215 hours of total flight experience, 1,153 of which were in make and model. Examination of the airplane by a Federal Aviation Administration (FAA) inspector revealed that the left wing fuel filler cap did not seat correctly into its fuel tank fitting. The inspector sumped the left fuel tank and observed "several ounces" of water in the fuel sample. He also took a sample of fuel from the right fuel tank, which did not contain any water. Approximately 18 gallons of fuel was drained from each fuel tank. The engine was examined by a Safety Board investigator on September 2, 2003. Examination of the engine revealed approximately one teaspoon of water in a 4-5 ounce sample of fuel observed in the carburetor bowl. Water was also observed in the engine driven fuel pump, and corrosion was noted on the pump. Impact damage sustained to the engine prevented it from being test run. A Safety Board meteorologist collected recorded precipitation totals from Patuxent River Naval Air Station, 7 miles east of 2W6, where the airplane was based, for a period extending two weeks prior to the accident. A review of this data revealed 2.3 inches of rain fell between July 19, 2003 and the day of the accident. ## Aircraft - Registration: [N33EM](https://openairdocs.org/deregistered/N33EM-2007-09-12), registration cancelled 2007-09-12, S/N 1850, built 1961 (OpenAirDocs) - Reported make and model: Mooney M20B - Registry model: [Mooney M20B](https://openairdocs.org/model/mooney-m20b) (registry code 5870206) (OpenAirDocs) - Registry engine: [Lycoming O&VO-360 series](https://openairdocs.org/engine/lycoming-o-vo-360-series) (registry code 41514, reciprocating) (OpenAirDocs) - Category: Airplane - Serial number: 1850 - Airframe hours: 3755 - Engines: Lycoming O-360 180 horsepower reciprocating - Damage: Substantial damage - Flight: Personal, Part 91 - Operator: Ronald Shields - Registered owner: Dyron Corp - Airworthiness certificate: Standard, Normal - Last inspection: Annual, January 19, 2003, 21 hours before - Departed: 2W6, Leonardtown, MD - Destination: EZF, Fredricksburg, VA - Airport: 2W6, Duke Regional Airport, runway 29, 4,150 × 75 ft, asphalt ## Flight crew As NTSB recorded them. NTSB leaves out names. - Pilot; age 67; injuries: minor; commercial, airline transport; airplane ratings: multi-engine land, single-engine land; instrument ratings: airplane; medical: class 3, invalid medical for flight; last flight review July 20, 2001; seat: left; flight hours: 7,215 total, 1,153 in this make and model, 5,770 as pilot in command, 10 in the last 90 days, 4 in the last 30 days ## Weather - Conditions: Visual (VMC), Day - Wind: variable at 5 knots - Visibility: 7 statute miles - Lowest ceiling: 20,000 ft broken - Temperature: 81 °F, dew point 73 °F - Altimeter: 30.05 inHg - Observed at: NHK, 7 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 20030802032689A](https://openairdocs.org/incident/20030802032689A), Aug 2, 2003: Mooney M20B, Leonardtown, MD, Substantial damage. (-23) The airplane just recently moved to duke regional airport from fredericksburg, VA, where it was kept in a hangar. At duke regional airport, the airplane… ## Docket (3 files) The files NTSB released with the investigation on June 3, 2004, on NTSB's docket system: https://data.ntsb.gov/Docket?ProjectID=57616. 432 KB in all. - Telephone Memorandums (item 1, .PDF, 46 KB): https://data.ntsb.gov/Docket/Document/docBLOB?ID=40212600&FileExtension=.PDF&FileName=Telephone%20Memorandums-Master.PDF - Pilot/Operator Aircraft Accident Report, NTSB Form 6120.1 (item 2, .PDF, 373 KB): https://data.ntsb.gov/Docket/Document/docBLOB?ID=40460116&FileExtension=.PDF&FileName=Pilot%2FOperator%20Aircraft%20Accident%20Report,%20NTSB%20Form%206120.1-Master.PDF - Weather Data (item 3, .PDF, 13 KB): https://data.ntsb.gov/Docket/Document/docBLOB?ID=40212602&FileExtension=.PDF&FileName=Weather%20Data%0D%0A-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.