# NTSB CHI83IA299: Douglas DC-8, N8091U, Chicago, IL, July 5, 1983

- Type: NTSB incident investigation
- Classification: Incident · No injuries · Incident investigation · Final report
- Date: July 5, 1983, 07:30 local (12:30 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: [Initial climb](https://openairdocs.org/ntsb-phases/350) (OpenAirDocs' grouping)
- Highest injury: No injuries
- Injuries: 122 uninjured
- Status: Completed
- Report: Approved by Office Director
- NTSB case key (mKey): 12051
- NTSB case page: https://web.ntsb.gov/investigations/?ntsbnumber=CHI83IA299
- NTSB report (PDF, downloads): https://data.ntsb.gov/carol-repgen/api/Aviation/ReportMain/GenerateNewestReport/12051/pdf
- Page: https://openairdocs.org/ntsb/CHI83IA299

## Sequence of events

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

- Loss of engine power(total) - mech failure/malf, takeoff - initial climb
  - compressor assembly,rotor disc - failure,total (cause)

## Analysis

SHORTLY AFTER TAKEOFF DURING INITIAL CLIMB THE NO 1 ENGINE FAILED AND AN ENGINE FIRE ERUPTED. THE CREW DISCHARGED 2 FIREBOTTLES AND EXTINGUISHED THE FIRE. THE ACFT RETURNED TO THE FIELD AND LANDED WITHOUT FURTHER INCIDENT. THE NO 1 ENGINE 1ST STAGE COMPRESSOR DISC FAILED DUE TO A SUBSURFACE MANUFACTURING DEFECT.

## Aircraft

- Registration: [N8091U](https://openairdocs.org/deregistered/N8091U-2006-04-13), registration cancelled 2006-04-13, S/N 45995, built 1969 (OpenAirDocs)
- Reported make and model: DOUGLAS DC-8
- Registry model: [Mcdonnell Douglas DC-8-71F](https://openairdocs.org/model/mcdonnell-douglas-dc-8-71f) (registry code 302199G) (OpenAirDocs)
- Registry engine: [CFM International CFM56 series](https://openairdocs.org/engine/cfm-international-cfm56-series) (registry code 13802, turbo-fan) (OpenAirDocs)
- Category: Airplane
- Serial number: 45995
- Airframe hours: 43696
- Engines: GE CFM-56 turbo jet
- Damage: No damage
- Flight: Part 121
- Registered owner: United Airlines
- Airworthiness certificate: Standard, Normal
- Departed: ORD, CHICAGO, IL
- Destination: CLE, CLEVELAND, OH
- Flight plan: IFR
- Airport: ORD, O'Hare, runway 4L, 7,500 × 150 ft, asphalt

## Flight crew

As NTSB recorded them. NTSB leaves out names.

- Pilot; 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: 12,500 total, 2,500 in this make and model

## Weather

- Conditions: Visual (VMC), Day
- Wind: 10° at 11 knots
- Visibility: 15 statute miles
- Lowest ceiling: 380 ft broken
- Temperature: 63 °F, dew point 52 °F
- Altimeter: 30.00 inHg
- Observed at: ORD

## 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 19830705035999I](https://openairdocs.org/incident/19830705035999I), Jul 5, 1983: Doug DC8*, Chicago, IL, Substantial damage. Experienced a failure and fire of #1 engine on climbout. Engine shut down. Turbine failure and evidence of fire.

## Other investigations on N8091U (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 OAK71AP045](https://openairdocs.org/ntsb/OAK71AP045), May 15, 1971: Douglas DC-8 (N8091U), San Frncsco, CA, no 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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