# NTSB CHI90LA200: Beech A36TC, N3738U, Oshkosh, WI, July 26, 1990

- Type: NTSB accident investigation
- Classification: Accident · No injuries · Limited investigation · Final report
- Date: July 26, 1990, 17:00 local (22:00 UTC)
- Place: Oshkosh, WI
- Location: 43.9844° N, 88.5570° W: Placed by OpenAirDocs at WITTMAN RGNL (OSH), within about a mile (OpenAirDocs)
- Nearby events: https://openairdocs.org/map.md?lat=43.9844&lon=-88.5570&mi=10
- Phase of flight: [Landing](https://openairdocs.org/ntsb-phases/550) (OpenAirDocs' grouping)
- Highest injury: No injuries
- Injuries: 2 uninjured
- Status: Completed, report September 28, 1992
- Report: Approved by Office Director
- NTSB case key (mKey): 14724
- NTSB case page: https://web.ntsb.gov/investigations/?ntsbnumber=CHI90LA200
- NTSB report (PDF, downloads): https://data.ntsb.gov/carol-repgen/api/Aviation/ReportMain/GenerateNewestReport/14724/pdf
- Page: https://openairdocs.org/ntsb/CHI90LA200

## Probable cause

THE PILOT'S FAILURE TO RECOGNIZE THE DETERIORATING AIRSPEED AND IMMINENT STALL DURING THE LANDING FLARE, WHICH RESULTED IN A HARD LANDING.

## Sequence of events

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

- Hard landing, landing - flare/touchdown
  - diverted attention, pilot in command
  - airspeed - not maintained, pilot in command (cause)
  - stall - encountered, pilot in command

## Analysis

THE PILOT STATED THAT HE WAS FOLLOWING TRAFFIC FOR THE LENDING RUNWAY WHEN HE WAS ADVISED OF A DISPLACED THRESHOLD. HE REPORTED THAT 'WHILE EXTENDING THE LANDING, I STALLED JUST ABOVE THE RUNWAY RESULTING IN A HARD LANDING.'

## Aircraft

- Registration: N3738U (not matched to a registry record)
- Reported make and model: Beech A36TC
- Category: Airplane
- Serial number: EA161
- Airframe hours: 1340
- Engines: CONTINENTAL TSIO-520-UB 300 horsepower reciprocating
- Damage: Substantial damage
- Flight: Personal, Part 91
- Operator: Mumford, Philip D.
- Registered owner: Mumford, Phillip J
- Airworthiness certificate: Standard, Normal
- Last inspection: Annual, January 30, 1990, 76 hours before
- Departed: MDW, CHICAGO, IL
- Airport: OSH, Oshkosh Wittman Field, runway 18R, 8,000 × 150 ft, asphalt

## Flight crew

As NTSB recorded them. NTSB leaves out names.

- Pilot; age 53; private; airplane ratings: single-engine land; medical: class 3, expired; seat: left; flight hours: 1,807 total, 375 in this make and model, 1,807 as pilot in command, 41 in the last 90 days, 1 in the last 24 hours

## Weather

- Conditions: Visual (VMC), Day
- Wind: 130° at 11 knots
- Visibility: 15 statute miles
- Lowest ceiling: 15,000 ft overcast
- Temperature: 75 °F, dew point 59 °F
- Altimeter: 30.00 inHg
- Observed at: OSH

## 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 19900726028989A](https://openairdocs.org/incident/19900726028989A), Jul 26, 1990: Beech A36TC, Oshkosh, WI, Substantial damage. Advised of displaced threshold. Tried to stretch glide on short final,stalled,and impacted runway damaging a wing.

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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