# NTSB MIA00LA099: Cessna 150L, N717NC, Brooksville, FL, February 28, 2000

- Type: NTSB accident investigation
- Classification: Accident · Serious injuries · Limited investigation · Final report
- Date: February 28, 2000, 15:12 local (20:12 UTC)
- Place: Brooksville, FL
- Coordinates: 28.370521, -82.51081 (estimated)
- Nearby events: https://openairdocs.org/map.md?lat=28.3705&lon=-82.5108&mi=10
- Phase of flight: [Approach](https://openairdocs.org/ntsb-phases/500) (OpenAirDocs' grouping)
- Highest injury: Serious injuries
- Injuries: 1 serious, 1 minor
- Status: Completed, report November 29, 2000
- Report: Approved by Office Director
- NTSB case key (mKey): 48686
- NTSB case page: https://web.ntsb.gov/investigations/?ntsbnumber=MIA00LA099
- NTSB report (PDF, downloads): https://data.ntsb.gov/carol-repgen/api/Aviation/ReportMain/GenerateNewestReport/48686/pdf
- Page: https://openairdocs.org/ntsb/MIA00LA099

## Probable cause

Total loss of engine power for undetermined reasons on appr oach for landing resulting in an in-flight collision with a dirt bank, separation of the main landing gear, and subsequent nose over. Contributing to the accident was carburetor icing conditions.

## Sequence of events

In NTSB's coding before 2008 (https://www.ntsb.gov/GILS/Documents/codman.pdf).

- Loss of engine power, approach - vfr pattern - base turn
  - powerplant - undetermined (cause)
  - anti-ice/deice system,carburetor/heat - ice (contributing factor)
- In flight collision with terrain/water, descent
  - terrain condition - dirt bank/rising embankment
  - landing gear - separation
- Nose over, landing

## Analysis

The pilot stated he applied carburetor heat abeam his inten ded landing touch down point. He turned base leg and increased power to clear the engine. The engine did not respond. The airplane collided with a berm/dirt bank and nosed over inverted. Examination of the airplane wreckage and carburetor air box revealed the carburetor heat and carburetor air box was in the off position. Examination of the engine assembly revealed no evidence of a mechanical malfunction. The engine assembly was removed and transported to an authorized repair facility for an engine run. The engine started, developed rated power and achieved takeoff power. Review of the Carburetor icing chart revealed the engine would encounter serious icing at descent power based on the weather conditions at the time of the accident.

## Factual narrative

On February 28, 2000, at about 1512 eastern standard time, a Cessna 150L, N717NC, registered to Nosworthy Corporation, operating as a 14 CFR Part 91 personal flight, crashed on approach to landing at Pilot Country Airport (X05), Brooksville, Florida. Visual meteorological conditions prevailed and no flight plan was filed. The airplane sustained substantial damage. The private pilot reported minor injures. The private pilot passenger sustained serious injuries. The flight originated from Pilot Country Airport about 5 minutes before the accident.

The pilot stated he had landed at X05 and taxied back for takeoff. He remained in left closed traffic for runway 36. Upon reaching his abeam point for his intended point of landing, he applied carburetor heat, reduced power, turned left base,  applied flaps 40 degrees, and pushed the throttle in to  clear the engine. The engine did not clear. He added power with no response. He pushed the throttle all the way in with negative results, turned final and lined up so as to land over the lowest part of an earth berm running perpendicular to the end of the runway. He lined up with a grass strip alongside the runway flying just above stall speed.  He realized the berm was coming closer. He applied aft pressure on the control yoke and hit the berm with all 3 landing gear, and the airplane came to rest inverted.

Examination of the airplane wreckage revealed the carburetor heat was found in the off position. Damage at the bottom of the carburetor air box revealed that the air valve was in the open position, no carburetor heat applied. Examination of the engine revealed no mechanical reason for the engine failing to maintain power. For additional information see FAA Inspector statement and Continental Motors Accident Investigation Report.

The engine assembly was removed and transported to Certified Engines Unlimited, Inc., an authorized FAA approved repair station. The engine was placed in a test cell. The engine developed rated power and achieved takeoff power.

Review of the probability carburetor icing chart revealed the engine would encounter serious icing at descent power based on the weather observation at the time of the accident.

## Aircraft

- Registration: [N717NC](https://openairdocs.org/deregistered/N717NC-2000-04-20), registration cancelled 2000-04-20, S/N 15074379 (OpenAirDocs)
- Reported make and model: Cessna 150L
- Registry model: [Cessna 150L](https://openairdocs.org/model/cessna-150l) (registry code 2071826) (OpenAirDocs)
- Category: Airplane
- Serial number: 15074379
- Airframe hours: 5999
- Engines: Continental O-200A 100 horsepower reciprocating
- Damage: Substantial damage
- Flight: Personal, Part 91
- Registered owner: Nasworthy Corporation
- Airworthiness certificate: Standard, Utility
- Last inspection: Annual, January 1, 2000, 78 hours before
- Departed: X05
- Airport: X05, Pilot Country, runway 36, 3,700 × 75 ft, asphalt

## Flight crew

As NTSB recorded them. NTSB leaves out names.

- Pilot; age 67; private; airplane ratings: single-engine land; medical: class 3, valid medical--no waivers/lim.; seat: right; flight hours: 1,830 total, 1,073 in this make and model, 1,830 as pilot in command, 6 in the last 90 days, 6 in the last 30 days, 2 in the last 24 hours

## Weather

- Conditions: Visual (VMC), Day
- Wind: 270° at 11 knots
- Visibility: 10 statute miles
- Temperature: 81 °F, dew point 52 °F
- Altimeter: 30.00 inHg
- Observed at: TPA

## 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 20000228011329A](https://openairdocs.org/incident/20000228011329A), Feb 28, 2000: Cessna 150L, Brooksville, FL, Substantial damage. (-23) On feb. 28, 2000, at 1500 local time, a Cessna 150L, N717NC, registered to nasworthy corporation, collided with the berm approx. 1000 feet from runway 36…

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.

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