# NTSB MKC89LA029: Aerospatiale TB-21, N20GF, Clinton, IA, November 22, 1988

- Type: NTSB accident investigation
- Classification: Accident · No injuries · Limited investigation · Final report
- Date: November 22, 1988, 14:30 local (20:30 UTC)
- Place: Clinton, IA
- Coordinates: 41.840892, -90.230201 (estimated)
- Nearby events: https://openairdocs.org/map.md?lat=41.8409&lon=-90.2302&mi=10
- Phase of flight: [Enroute](https://openairdocs.org/ntsb-phases/400) (OpenAirDocs' grouping)
- Highest injury: No injuries
- Injuries: 2 uninjured
- Status: Completed, report July 12, 1989
- Report: Approved by Office Director
- NTSB case key (mKey): 34726
- NTSB case page: https://web.ntsb.gov/investigations/?ntsbnumber=MKC89LA029
- NTSB report (PDF, downloads): https://data.ntsb.gov/carol-repgen/api/Aviation/ReportMain/GenerateNewestReport/34726/pdf
- Page: https://openairdocs.org/ntsb/MKC89LA029

## Sequence of events

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

- Loss of engine power, cruise - normal
  - miscellaneous - undetermined (cause)
- Forced landing, descent - emergency
  - emergency procedure - initiated, pilot in command
- Gear collapsed, landing - roll
  - terrain condition - soft (contributing factor)
  - landing gear - overload

## Analysis

THE PLT RPRTD THAT WHILE CRUISING AT 10,000' & MONITORING THE ENG INSTRUMENTS IN A NORMAL MANNER, POWER WAS SUDDENLY LOST AS IF BY FUEL STARVATION. HE STATED THAT EMERG PROCEDURES WERE PERFORMED, BUT HE WAS UNABLE TO RESTART THE ENG IN SPITE OF FUEL IN BOTH TANKS. HE TRIED TO GLIDE TO AN ARPT, BUT WAS UNABLE. DRG AN EMERG LANDING, THE NOSE & RGT MAIN GEAR COLLAPSED AFTER THE ACFT ROLLED ABOUT 20 TO 30 YDS IN SOFT TERRAIN. NO SPECIFIC MECHANICAL PROBLEM WAS FOUND THAT WOULD HAVE RESULTED IN A LOSS OF ENG POWER.

## Aircraft

- Registration: [N20GF](https://openairdocs.org/aircraft/N20GF), registered now, S/N 645, built 1987 (OpenAirDocs)
- Reported make and model: AEROSPATIALE TB-21
- Registry model: [Socata TB21](https://openairdocs.org/model/socata-tb21) (registry code 8680697) (OpenAirDocs)
- Registry engine: [Lycoming TI0-540 series](https://openairdocs.org/engine/lycoming-ti0-540-series) (registry code 41533, turbo-prop) (OpenAirDocs)
- Category: Airplane
- Serial number: 645
- Engines: LYCOMING TIO-540-AB1AD 250 horsepower reciprocating
- Damage: Substantial damage
- Flight: Personal, Part 91
- Operator: Kessler, Irving R.
- Registered owner: Kessler, Irvin
- Airworthiness certificate: Standard, Normal
- Departed: UGN, WAUKEGAN, IL
- Destination: MLE, OMAHA, NE
- Flight plan: IFR
- Airport: CWI

## Flight crew

As NTSB recorded them. NTSB leaves out names.

- Pilot; age 43; private; airplane ratings: single-engine land; instrument ratings: airplane; medical: class 3, valid medical--w/ waivers/lim; seat: left; flight hours: 158 total, 32 in this make and model, 114 as pilot in command, 94 in the last 90 days, 40 in the last 30 days, 1 in the last 24 hours

## Weather

- Conditions: Visual (VMC), Day
- Wind: 180° at 9 knots
- Visibility: 7 statute miles
- Lowest ceiling: none
- Temperature: 39 °F, dew point -0 °F
- Altimeter: 30.00 inHg
- Observed at: CWI, 1 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 19881122053269A](https://openairdocs.org/incident/19881122053269A), Nov 22, 1988: Socata TB21, Clinton, IA, Substantial damage. Engine stopped en route. Nosed up landing in a field. Suspect a problem with fuel system still undetermined.

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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