# NTSB CHI84LA387: Mooney M20E, N10SF, Lansing, IL, September 8, 1984

- Type: NTSB accident investigation
- Classification: Accident · No injuries · Limited investigation · Final report
- Date: September 8, 1984, 16:50 local (21:50 UTC)
- Place: Lansing, IL
- Coordinates: 41.560356, -87.53923 (estimated)
- Nearby events: https://openairdocs.org/map.md?lat=41.5604&lon=-87.5392&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
- NTSB case key (mKey): 12771
- NTSB case page: https://web.ntsb.gov/investigations/?ntsbnumber=CHI84LA387
- NTSB report (PDF, downloads): https://data.ntsb.gov/carol-repgen/api/Aviation/ReportMain/GenerateNewestReport/12771/pdf
- Page: https://openairdocs.org/ntsb/CHI84LA387

## 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
  - aircraft preflight - improper, pilot in command (contributing factor)
  - self-induced pressure, pilot in command (contributing factor)
  - ignition system,magneto - undetermined (cause)
  - aborted takeoff - not possible, pilot in command (contributing factor)
- Overrun, landing
  - precautionary landing - performed, pilot in command
  - distance - misjudged, pilot in command (cause)
  - anxiety/apprehension, pilot in command (contributing factor)
  - airspeed - excessive, pilot in command (cause)
  - airport facilities,runway/landing area condition - wet (contributing factor)
- On ground/water collision with object, landing - roll

## Analysis

THE PLT HAD JUST DEMONSTRATED THE ACFT FOR SALE AND FILED AN IFR FLT PLAN. RUN UP AND PRE-TAKEOFF CHECKS WERE RUSHED TO BEAT VOID CLEARANCE TIME. JUST BEFORE LIFTOFF, PLT NOTED SLUGGISH ACCELERATION BUT BELIEVED INSUFFICIENT RUNWAY REMAINED TO SUCCESSFULLY ABORT TAKEOFF. ON INITIAL CLIMB, ENG BEGAN TO VIBRATE AND POWER OUTPUT WAS MARGINAL FOR CONTINUED FLT. PLT WAS ABLE TO MANEUVER DOWNWIND FOR LOW, CLOSE-IN APPROACH. AFTER ATTAINING RUNWAY ALIGNMENT, PLT REALIZED HE HAD EXCESS ALTITUDE AND AIRSPEED BUT ELECTED TO CONTINUE APPROACH. ACFT TOUCHED DOWN LONG ON WET RUNWAY AND RAN OFF END, COLLIDING WITH A PERIMETER ROAD GUARD RAIL. POST-MISHAP INVESTIGATION OF ENG REVEALED NO DISCREPANCIES EXCEPT WITH LEFT MAGNETO ONLY SELECTED, ENG RAN ROUGH. LEFT MAGNETO, HARNESS AND SPARK PLUGS TESTED TO SPECIFICATIONS.

## Aircraft

- Registration: N10SF (not matched to a registry record)
- Reported make and model: MOONEY M20E
- Category: Airplane
- Serial number: 737
- Airframe hours: 2210
- Engines: LYCOMING IO-360-A1A 200 horsepower reciprocating
- Damage: Substantial damage
- Flight: Personal, Part 91
- Registered owner: Dolton Value Village, Inc.
- Airworthiness certificate: Standard, Normal
- Last inspection: Annual, March 16, 1984, 24 hours before
- Destination: 3KM, WICHITA, KS
- Flight plan: IFR
- Airport: 3HA, Lansing Muni, runway 27, 2,432 × 75 ft, asphalt

## Flight crew

As NTSB recorded them. NTSB leaves out names.

- Pilot; age 38; commercial; airplane ratings: multi-engine land, single-engine land; instrument ratings: airplane; medical: class 3, valid medical--w/ waivers/lim; seat: left; flight hours: 1,536 total, 83 in this make and model, 1,465 as pilot in command, 38 in the last 90 days

## Weather

- Conditions: Visual (VMC), Day
- Wind: 200° at 8 knots
- Visibility: 7 statute miles
- Lowest ceiling: 5,500 ft broken
- Temperature: 68 °F, dew point 61 °F
- Altimeter: 29.00 inHg
- Observed at: MDW, 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 19840908047519A](https://openairdocs.org/incident/19840908047519A), Sep 8, 1984: Mooney M20E, Lansing, IL, Substantial damage. Rough running engine, partial power magneto switch not on both. Overshot runway, hit road guard rail.

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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