# NTSB MIA94LA200: Cessna 152, N6088H, Osteen, FL, August 23, 1994 - Type: NTSB accident investigation - Classification: Accident · No injuries · Limited investigation · Final report - Date: August 23, 1994, 09:45 local (13:45 UTC) - Place: Osteen, FL - Coordinates: 28.839246, -81.160583 (estimated) - Nearby events: https://openairdocs.org/map.md?lat=28.8392&lon=-81.1606&mi=10 - Phase of flight: [Enroute](https://openairdocs.org/ntsb-phases/400) (OpenAirDocs' grouping) - Highest injury: No injuries - Injuries: 2 uninjured - Status: Completed, report January 3, 1995 - Report: Approved by Office Director - NTSB case key (mKey): 37592 - NTSB case page: https://web.ntsb.gov/investigations/?ntsbnumber=MIA94LA200 - NTSB report (PDF, downloads): https://data.ntsb.gov/carol-repgen/api/Aviation/ReportMain/GenerateNewestReport/37592/pdf - Page: https://openairdocs.org/ntsb/MIA94LA200 ## Probable cause ENGINE POWER LOSS DUE TO BLOCKAGE OF THE CARBURETOR FUEL DISCHARGE NOZZLE PICKUP BY AN INSECT THAT INADVERTENTLY ENTERED THE CARBURETOR DURING OVERHAUL RESULTING IN FUEL STARVATION. ## Sequence of events In NTSB's coding before 2008 (https://www.ntsb.gov/GILS/Documents/codman.pdf). - Loss of engine power, climb - fuel system,carburetor - foreign object (cause) - fuel system,carburetor - blocked(partial) (cause) - fluid,fuel - starvation (cause) - Forced landing, emergency landing - Nose over, emergency landing - terrain condition - none suitable ## Analysis THE PILOTS STATED THAT THEY PERFORMED A SIMULATED FORCED LANDING AND INITIATED A G0-AROUND AT 600 FT. NORMAL ENGINE POWER WAS OBTAINED. WHILE CLIMBING THROUGH 800 FT POWER SUDDENLY WENT TO IDLE, AND ATTEMPTS TO RESTORE POWER WERE UNSUCCESSFUL. DURING A FORCED LANDING IN A FIELD THE AIRCRAFT NOSED OVER. AFTER THE ACCIDENT THE CARBURETOR WAS CHANGED, AND THE ENGINE OPERATED TO FULL POWER. A 3/32 INCH DIAMETER PORTION OF AN INSECT WAS FOUND IN THE CARBURETOR MIXTURE METERING SLEEVE WHICH BLOCKED THE PICKUP TO THE FUEL DISCHARGE NOZZLE. THE INSECT PORTION WAS TOO LARGE TO HAVE ENTERED THE CARBURETOR THROUGH THE FUEL INLET SCREEN. THE CARBURETOR WAS OVERHAULED IN 10/93, AND WAS INSTALLED ON THE ACCIDENT AIRCRAFT ON 8/5/94, 50 FLIGHT HOURS BEFORE THE ACCIDENT. ## Factual narrative On August 23, 1994, about 0945 eastern daylight time, a Cessna 152, N6088H, registered to Comair Aviation Academy, nosed over in a field near Osteen, Florida, while making a forced landing following loss of engine power, while on a 14 CFR Part 91 instructional flight. Visual meteorological conditions prevailed at the time and no flight plan was filed. The aircraft received substantial damage and the commercial-rated flight instructor and private-rated dual student were not injured. The flight originated at Sanford, Florida, on August 23, 1994, about 0845. The pilots stated that they had performed a simulated engine out with a descent to about 600 feet. At 600 feet a "go-around" was initiated and full engine power was obtained. When climbing through 800 feet the engine retarded to idle without warning. Attempts to regain engine power were unsuccessful and a forced landing was made in a field. During landing rollout the aircraft nosed over on the soft ground. Postcrash examination of the aircraft was performed by a FAA inspector. The engine was started and operated only to about 1,000 rpm. The carburetor was replaced and the engine operated to full power. Examination of the carburetor indicated that a foreign object about 3/32 of an inch in diameter was located in the mixture metering sleeve and blocking the pickup for the fuel discharge nozzle. The foreign object was identified by magnification to be part of an insect. It was determined the foreign object was too large to have passed into the carburetor through the fuel inlet screen. The carburetor had been overhauled in October 1993, and installed on N6088H on August 5, 1994, 50 flight hours before the accident. See Component Inspection Report. (The location is different from what was reported on the Preliminary Report, Aviation.) ## Aircraft - Registration: [N6088H](https://openairdocs.org/aircraft/N6088H), registered now, S/N 15284129 (OpenAirDocs) - Reported make and model: CESSNA 152 - Registry model: [Cessna 152](https://openairdocs.org/model/cessna-152) (registry code 2071835) (OpenAirDocs) - Category: Airplane - Serial number: 15284129 - Airframe hours: 8174 - Engines: LYCOMING O-235-L2C 110 horsepower reciprocating - Damage: Substantial damage - Flight: Instructional, Part 91 - Registered owner: Comair Aviation Academy - Airworthiness certificate: Standard, Utility; Standard, Normal - Last inspection: 100 hour, August 5, 1994, 50 hours before - Departed: SFB, SANFORD, FL ## Flight crew As NTSB recorded them. NTSB leaves out names. - Pilot; age 24; flight instructor, commercial; airplane ratings: multi-engine land, single-engine land; instrument ratings: airplane; medical: class 1, valid medical--no waivers/lim.; seat: right; flight hours: 820 total, 185 in this make and model, 765 as pilot in command, 250 in the last 90 days, 84 in the last 30 days, 2 in the last 24 hours ## Weather - Conditions: Visual (VMC), Day - Visibility: 10 statute miles - Lowest ceiling: none - Temperature: 81 °F, dew point 73 °F - Altimeter: 30.00 inHg - Observed at: SFB, 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 19940823022749A](https://openairdocs.org/incident/19940823022749A), Aug 23, 1994: Cessna 152, Osteen, FL, Substantial damage. During climbout from engine out manuever engine went to idle. Nosed over landing. Insect left in carb at overhaul. 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.