# NTSB ATL84IA104: Mcdonnell Douglas DC-9-31, N8924E, Forest Park, GA, February 16, 1984

- Type: NTSB incident investigation
- Classification: Incident · No injuries · Incident investigation · Final report
- Date: February 16, 1984, 12:31 local (17:31 UTC)
- Place: Forest Park, GA
- Location: 33.6380° N, 84.4105° W: Placed by OpenAirDocs from NTSB’s distance and direction from HARTSFIELD/JACKSON ATLANTA INTL (ATL), within about a mile (OpenAirDocs)
- Nearby events: https://openairdocs.org/map.md?lat=33.6380&lon=-84.4105&mi=10
- Phase of flight: [Initial climb](https://openairdocs.org/ntsb-phases/350) (OpenAirDocs' grouping)
- Highest injury: No injuries
- Injuries: 72 uninjured
- Status: Completed
- Report: Approved by Office Director
- NTSB case key (mKey): 6346
- NTSB case page: https://web.ntsb.gov/investigations/?ntsbnumber=ATL84IA104
- NTSB report (PDF, downloads): https://data.ntsb.gov/carol-repgen/api/Aviation/ReportMain/GenerateNewestReport/6346/pdf
- Page: https://openairdocs.org/ntsb/ATL84IA104

## 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
  - turbine assembly,turbine blade - fatigue (cause)
  - turbine assembly,turbine blade - failure,total

## Analysis

CAPTAIN HEARD A MUFFLED EXPLOSION ACCOMPANIED BY A MODERATE LEFT YAW AND 'A DETERIORATION OF READINGS ON #1 ENGINE' SHORTLY AFTER TAKEOFF. ACFT RETURNED FOR AN UNEVENTFUL LANDING. EXAMINATION REVEALED THAT THE ENGINE FAILURE INITIATED IN 'THE T3 DISK/BLADES AREA.' METALLURGICAL EXAMINATION DISCLOSED THE FATIGUE FAILURE OF THE 3RD STAGE TURBINE BLADE WAS MOST PROBABLY INDUCED BY RUBBING BTW THE TURBINE SHROUD AND THE OUTER AIR SEAL.

## Aircraft

- Registration: N8924E (not matched to a registry record)
- Reported make and model: MCDONNELL DOUGLAS DC-9-31
- Category: Airplane
- Serial number: 45839
- Engines: P&W JT8D-7B 14000 lbs thrust turbo fan
- Damage: Minor damage
- Flight: Part 121
- Registered owner: Eastern Air Lines
- Airworthiness certificate: Standard, Transport
- Destination: IAD, WASHINGTON, DC
- Flight plan: VFR/IFR
- Airport: ATL, W.B Hartsfield Int'L Arpt, runway 9, 8,000 × 150 ft, concrete

## Flight crew

As NTSB recorded them. NTSB leaves out names.

- Pilot; age 51; airline transport; airplane ratings: multi-engine land; instrument ratings: airplane; medical: class 1, valid medical--w/ waivers/lim; seat: left

## Weather

- Conditions: Visual (VMC), Day
- Wind: 130° at 6 knots
- Visibility: 7 statute miles
- Lowest ceiling: 13,000 ft broken
- Temperature: 59 °F, dew point 43 °F
- Altimeter: 30.00 inHg
- Observed at: ATL

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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