# NTSB CHI88IA200: Aerospatiale ATR-42-300, N426MQ, Chicago, IL, August 12, 1988

- Type: NTSB incident investigation
- Classification: Incident · No injuries · Incident investigation · Final report
- Date: August 12, 1988, 15:50 local (20:50 UTC)
- Place: Chicago, IL
- Location: 41.9769° N, 87.9081° W: Placed by OpenAirDocs at CHICAGO O'HARE INTL (ORD), within about a mile (OpenAirDocs)
- Nearby events: https://openairdocs.org/map.md?lat=41.9769&lon=-87.9081&mi=10
- Phase of flight: [Landing](https://openairdocs.org/ntsb-phases/550) (OpenAirDocs' grouping)
- Highest injury: No injuries
- Injuries: 46 uninjured
- Status: Completed, report March 25, 1991
- Report: Approved by Office Director
- NTSB case key (mKey): 14000
- NTSB case page: https://web.ntsb.gov/investigations/?ntsbnumber=CHI88IA200
- NTSB report (PDF, downloads): https://data.ntsb.gov/carol-repgen/api/Aviation/ReportMain/GenerateNewestReport/14000/pdf
- Page: https://openairdocs.org/ntsb/CHI88IA200

## Sequence of events

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

- Airframe/component/system failure/malfunction, landing - roll
  - fuselage - vibration (contributing factor)
  - flt control syst,elevator control - disengaged (cause)

## Aircraft

- Registration: N426MQ (not matched to a registry record)
- Reported make and model: AEROSPATIALE ATR-42-300 (ATR 42-300)
- Category: Airplane
- Serial number: 037
- Airframe hours: 2589
- Engines: P&W PW120 2100 horsepower turbo prop
- Damage: No damage
- Flight: Part 121
- Registered owner: Simmons Airlines
- Airworthiness certificate: Standard, Transport
- Last inspection: Continuous airworthiness, July 25, 1988, 120 hours before
- Departed: TVC, TRAVERSE CITY, MI
- Destination: ORD
- Flight plan: IFR
- Airport: ORD, Chicago-O'Hare Intl

## Flight crew

As NTSB recorded them. NTSB leaves out names.

- Pilot; age 33; airline transport; airplane ratings: single-engine land, multi-engine land; instrument ratings: airplane; medical: class 1, valid medical--no waivers/lim.; seat: left; flight hours: 11,000 total

## Weather

- Conditions: Visual (VMC), Day
- Wind: 225° at 10 knots
- Visibility: 7 statute miles
- Lowest ceiling: none
- Temperature: 91 °F
- Altimeter: 30.00 inHg
- Observed at: ORD

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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