# NTSB MKC84LA188: Cessna 152, N25496, Lee'S Summit, MO, June 28, 1984

- Type: NTSB accident investigation
- Classification: Accident · No injuries · Limited investigation · Final report
- Date: June 28, 1984, 17:15 local (22:15 UTC)
- Place: Lee'S Summit, MO
- Coordinates: 38.910808, -94.380348 (estimated)
- Nearby events: https://openairdocs.org/map.md?lat=38.9108&lon=-94.3803&mi=10
- Phase of flight: [Takeoff](https://openairdocs.org/ntsb-phases/300) (OpenAirDocs' grouping)
- Highest injury: No injuries
- Injuries: 2 uninjured
- Status: Completed
- Report: Approved by Office Director
- Safety recommendations: Yes
- NTSB case key (mKey): 33721
- NTSB case page: https://web.ntsb.gov/investigations/?ntsbnumber=MKC84LA188
- NTSB report (PDF, downloads): https://data.ntsb.gov/carol-repgen/api/Aviation/ReportMain/GenerateNewestReport/33721/pdf
- Page: https://openairdocs.org/ntsb/MKC84LA188

## Sequence of events

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

- Loss of engine power(partial) - mech failure/malf, takeoff - roll/run
  - touch-and-go - initiated, dual student
  - fuel system,carburetor - failure,partial (cause)
  - aborted takeoff - performed
- Overrun, takeoff
  - emergency procedure - improper use of, pilot in command(cfi) (contributing factor)
- Nose over, takeoff
  - terrain condition - soft (contributing factor)
  - terrain condition - wet (contributing factor)

## Analysis

WHILE TAKING OFF FROM A TOUCH-&-GO LANDING, THE ENG FAILED TO DEVELOPE FULL POWER. THE INSTRUCTOR PLT (CFI) PULLED THE THROTTLE BACK TO ABORT THE TAKEOFF, BUT THE RPM WOULD NOT REDUCE TO IDLE. SUBSEQUENTLY, THE ACFT CONTINUED APRX 500 FT PAST THE END OF THE RWY, ENCOUNTERED A SOFT SPOT (MUD) & NOSED OVER. AN EXAM OF THE CARBURETOR REVEALED THAT THE PRIMARY VENTURI RETAINER CLIPS, P/N 29-113, HAD FAILED & ALLOWED THE PRIMARY VENTURI TO MOVE FROM ITS MOUNTING POSITION.

## Aircraft

- Registration: N25496 (not matched to a registry record)
- Reported make and model: CESSNA 152
- Category: Airplane
- Serial number: 15280694
- Airframe hours: 2235
- Engines: LYCOMING O-235 110 horsepower reciprocating
- Damage: Substantial damage
- Flight: Instructional, Part 91
- Registered owner: Phil Lepage Aviation, Inc.
- Airworthiness certificate: Standard, Normal
- Last inspection: Annual, May 15, 1984, 17 hours before
- Airport: K84, Mccomas-Lee'S Summit Muni, runway 18, 3,000 × 60 ft, asphalt

## Flight crew

As NTSB recorded them. NTSB leaves out names.

- Pilot; age 44; commercial, flight instructor; airplane ratings: single-engine land; instrument ratings: airplane; medical: class 3, valid medical--w/ waivers/lim; seat: right; flight hours: 2,525 total, 732 in this make and model, 2,365 as pilot in command, 45 in the last 90 days

## Weather

- Conditions: Visual (VMC), Day
- Visibility: 5 statute miles
- Lowest ceiling: none
- Temperature: 82 °F

## 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 19840628051209A](https://openairdocs.org/incident/19840628051209A), Jun 28, 1984: Cessna 152, Lees Summit, MO, Substantial damage. Aborted takeoff due to partial engine power. Unable to idle. Ran off end. Carb venturi came loose jammed throttle.

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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