# NTSB CHI87NA194: Boeing 767-231ER, N609TW, Belleville, IL, August 22, 1987

- Type: NTSB incident investigation
- Classification: Incident · Minor injuries · Final report
- Date: August 22, 1987, 13:12 local (18:12 UTC)
- Place: Belleville, IL
- Coordinates: 38.539344, -89.850814 (estimated)
- Nearby events: https://openairdocs.org/map.md?lat=38.5393&lon=-89.8508&mi=10
- Phase of flight: [Approach](https://openairdocs.org/ntsb-phases/500) (OpenAirDocs' grouping)
- Highest injury: Minor injuries
- Injuries: 3 minor, 178 uninjured
- Status: Completed, report April 18, 1989
- Safety recommendations: Yes
- NTSB case key (mKey): 13841
- NTSB case page: https://web.ntsb.gov/investigations/?ntsbnumber=CHI87NA194
- NTSB report (PDF, downloads): https://data.ntsb.gov/carol-repgen/api/Aviation/ReportMain/GenerateNewestReport/13841/pdf
- Page: https://openairdocs.org/ntsb/CHI87NA194

## Sequence of events

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

- Airframe/component/system failure/malfunction, approach
  - landing gear,normal brake system - not secured (cause)
  - maintenance,installation - improper, company maintenance personnel (cause)
  - instructions,written/verbal - inadequate, company/operator management
  - light condition - dark night
  - maintenance,inspection - inadequate, company maintenance personnel (cause)
- Gear not extended, landing
  - landing gear,normal retraction/extension assembly - failure,partial
  - landing gear,normal retraction/extension assembly - jammed
  - misc eqpt/furnishings,slides - binding(mechanical)

## Aircraft

- Registration: N609TW (not matched to a registry record)
- Reported make and model: BOEING 767-231ER
- Category: Airplane
- Serial number: 22572
- Airframe hours: 12336
- Damage: Minor damage
- Flight: Part 121
- Operator: Transworld Airlines, doing business as Twa
- Registered owner: Trans World Airlines, Inc
- Airworthiness certificate: Standard, Transport
- Last inspection: Continuous airworthiness, June 30, 1987, 614 hours before
- Departed: SFO, SAN FRANCISCO, CA
- Destination: BLV, ST LOUIS, MO
- Flight plan: IFR
- Airport: DLV, Scott Afb, runway 32, 7,061 × 150 ft, concrete

## Weather

- Conditions: Visual (VMC), Day
- Wind: 330° at 12 knots
- Visibility: 7 statute miles
- Lowest ceiling: none
- Temperature: 91 °F, dew point 70 °F
- Altimeter: 30.00 inHg
- Observed at: BLV

## FAA reports on this event (1)

The FAA's own accident and incident reports, matched to the aircraft by N-number and date (OpenAirDocs).

- [Incident 19870822082209I](https://openairdocs.org/incident/19870822082209I), Aug 22, 1987: Boeing 767231, Belleville, IL, Minor damage. Brake rod not properly secured. Unable to extend right main gear. Aft left door jammed by emergency kit.

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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