# NTSB MKC85FA032: Swearingen SA226TC, N511SS, Harrison, AR, December 7, 1984

- Type: NTSB accident investigation
- Classification: Accident · No injuries · Field investigation · Final report
- Date: December 7, 1984, 14:10 local (20:10 UTC)
- Place: Harrison, AR
- Coordinates: 36.240985, -93.110954 (estimated)
- Nearby events: https://openairdocs.org/map.md?lat=36.2410&lon=-93.1110&mi=10
- Phase of flight: [Landing](https://openairdocs.org/ntsb-phases/550) (OpenAirDocs' grouping)
- Highest injury: No injuries
- Injuries: 7 uninjured
- Status: Completed
- Report: Approved by Office Director
- NTSB case key (mKey): 33813
- NTSB case page: https://web.ntsb.gov/investigations/?ntsbnumber=MKC85FA032
- NTSB report (PDF, downloads): https://data.ntsb.gov/carol-repgen/api/Aviation/ReportMain/GenerateNewestReport/33813/pdf
- Page: https://openairdocs.org/ntsb/MKC85FA032

## Sequence of events

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

- Gear collapsed, landing - roll
  - landing gear - undetermined (cause)

## Analysis

THE ACFT WAS BEING OPERATED AS SKYWAYS FLT 488. THE FIRST OFFICER WAS FLYING THE ACFT. THE ACFT TOUCHED DOWN ON THE RWY APRX 1584 FEET FROM THE APPROACH END AND AFTER A SHORT ROLL, THE LANDING GEAR WARNING HORN SOUNDED AND THE LEFT WING SETTLED TO THE GROUND. THE CREW ATTEMPTED TO RAISE THE WING AND THE ACFT SETTLED TO THE GROUND AND SLID 2190 FEET. POST CRASH EXAM REVEALED NO EVIDENCE OF A MECHANICAL MALFUNCTION OR FAILURE OF THE LANDING GEAR PRIOR TO THE ACCIDENT. BOTH FLIGHT CREW MEMBERS STATED THAT THE GEAR HANDLE WAS IN THE DOWN POSITION AND THAT THE GEAR SAFE INDICATOR WAS ILLUMINATED AT THE TIME OF LANDING.

## Aircraft

- Registration: [N511SS](https://openairdocs.org/deregistered/N511SS-2013-03-25), registration cancelled 2013-03-25, S/N TC205, built 1973 (OpenAirDocs)
- Reported make and model: SWEARINGEN SA226TC
- Registry model: [Swearingen SA226TC](https://openairdocs.org/model/swearingen-sa226tc) (registry code 8780404) (OpenAirDocs)
- Registry engine: [AiResearch 331 SER 605HP](https://openairdocs.org/engine/airesearch-331-ser-605hp) (registry code 01502, turbo-prop) (OpenAirDocs)
- Category: Airplane
- Serial number: TC205
- Airframe hours: 22855
- Engines: GARRETT TPE331-10VA 840 horsepower turbo prop
- Damage: Substantial damage
- Fire: On-Ground
- Flight: Part 135
- Operator: Scheduled Skyways,Inc.
- Registered owner: Swj Leasing Company
- Airworthiness certificate: Standard, Normal
- Last inspection: AAIP, November 30, 1984, 28 hours before
- Departed: FYV, FAYETTEVILLE, AR
- Flight plan: IFR
- Airport: HRO, Boone County, runway 18, 6,159 × 150 ft, asphalt

## Flight crew

As NTSB recorded them. NTSB leaves out names.

- Pilot; age 27; airline transport; airplane ratings: multi-engine land; instrument ratings: airplane; medical: class 1, valid medical--no waivers/lim.; seat: left; flight hours: 3,599 total, 754 in this make and model, 3,436 as pilot in command, 213 in the last 90 days, 4 in the last 24 hours

## Weather

- Conditions: Visual (VMC), Day
- Wind: 270° at 5 knots
- Visibility: 20 statute miles
- Lowest ceiling: none
- Temperature: 57 °F, dew point 28 °F
- Altimeter: 30.00 inHg
- Observed at: HRO, 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 19841207067369A](https://openairdocs.org/incident/19841207067369A), Dec 7, 1984: Swrngn SA226TC, Harrison, AR, Substantial damage. All landing gears collapsed on rollout. No mechanical malfunction nor pilot error proved to be the cause.

## Other investigations on N511SS (1)

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.

- [NTSB FTW85IA028](https://openairdocs.org/ntsb/FTW85IA028), Oct 26, 1984: Swearingen SA226TC (N511SS), Tulsa, OK, incident, minor damage

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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