# NTSB MKC88LA061: Beech A36, N8136R, Cherokee, IA, March 15, 1988

- Type: NTSB accident investigation
- Classification: Accident · No injuries · Limited investigation · Final report
- Date: March 15, 1988, 07:15 local (13:15 UTC)
- Place: Cherokee, IA
- Coordinates: 42.749561, -95.549171 (estimated)
- Nearby events: https://openairdocs.org/map.md?lat=42.7496&lon=-95.5492&mi=10
- Phase of flight: [Initial climb](https://openairdocs.org/ntsb-phases/350) (OpenAirDocs' grouping)
- Highest injury: No injuries
- Injuries: 2 uninjured
- Status: Completed, report March 30, 1989
- Report: Approved by Office Director
- NTSB case key (mKey): 34546
- NTSB case page: https://web.ntsb.gov/investigations/?ntsbnumber=MKC88LA061
- NTSB report (PDF, downloads): https://data.ntsb.gov/carol-repgen/api/Aviation/ReportMain/GenerateNewestReport/34546/pdf
- Page: https://openairdocs.org/ntsb/MKC88LA061

## 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 - initial climb
  - exhaust system - failure,partial (cause)
  - exhaust system,turbocharger - output low (contributing factor)
  - electrical system,electric wiring - burned (cause)
  - landing gear,normal retraction/extension assembly - inoperative (contributing factor)
- Forced landing, descent - emergency
  - gear extension - not attained (contributing factor)
- In flight collision with terrain/water, landing - roll
  - terrain condition - rough/uneven
  - terrain condition - snow covered

## Analysis

THE PLT STATED, THAT SHORTLY AFTER TAKEOFF, THE ENGINE LOST SUBSTANTIAL PWR. AFTERWARDS THERE WAS SMOKE IN THE COCKPIT. THE PIC REVERSED HIS COURSE WITH THE INTENT TO LAND ON THE DEPARTURE ARPT. WHEN HE FELT HE HAD THE LDG FIELD MADE, HE ATTEMPTED TO LOWER THE LDG GEAR. THE RED GEAR UNSAFE LIGHT ILLUMINATED, SO HE ATTEMPTED TO LWR THE GEAR USING THE EMERGENCY CRANK DOWN PROCEDURES. HE FAILED TO GET FULL GEAR EXTENSION BEFORE STRIKING THE TERRAIN SHORT OF THE INTENDED LDG FIELD. POSTFLIGHT INSPECTION REVEALED A BROKEN EXHAUST PIPE FLANGE ON #5 CYLINDER, ALLOWING EXHAUST GAS TO MELT AN ALTERNATOR WIRE, AND REDUCING THE EFFECTIVENESS OF THE TURBOCHARGER ON THE MODIFIED ENGINE INSTALLATION.

## Aircraft

- Registration: [N8136R](https://openairdocs.org/aircraft/N8136R), registered now, S/N E-612, built 1974 (OpenAirDocs)
- Reported make and model: BEECH A36
- Registry model: [Beech A36](https://openairdocs.org/model/beech-a36) (registry code 1151604) (OpenAirDocs)
- Registry engine: [Continental IO-520 series](https://openairdocs.org/engine/continental-io-520-series) (registry code 17032, reciprocating) (OpenAirDocs)
- Category: Airplane
- Serial number: E612
- Airframe hours: 3003
- Engines: LYCOMING TIO-540-J2BD 350 horsepower reciprocating
- Damage: Substantial damage
- Flight: Personal, Part 91
- Operator: Dga Inc.
- Registered owner: Dga, Inc
- Airworthiness certificate: Standard, Normal
- Departed: CKP, CHEROKEE, IA
- Destination: Y46, BEDFORD, IA
- Airport: CKP

## Flight crew

As NTSB recorded them. NTSB leaves out names.

- Pilot; age 35; private; airplane ratings: single-engine land; instrument ratings: airplane; medical: class 3, valid medical--no waivers/lim.; seat: left; flight hours: 605 total, 87 in this make and model, 467 as pilot in command, 30 in the last 90 days

## Weather

- Conditions: Visual (VMC), Day
- Wind: 320° at 10 knots
- Visibility: 20 statute miles
- Lowest ceiling: none
- Temperature: 18 °F, dew point 10 °F
- Altimeter: 30.00 inHg
- Observed at: DSM, 80 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 19880315005409A](https://openairdocs.org/incident/19880315005409A), Mar 15, 1988: Beech A36, Cherokee, IA, Substantial damage. Lost power, smoke in cockpit. Unable to extend gear. Broken exhaust pipe flange. Hot exhaust burned alternator wires

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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