ATL04IA085

NTSB incident investigation · Boeing 717-200 · Atlanta, GA · March 5, 2004

Incident · No injuriesIncident investigationFinal report
Date
March 5, 2004, 15:39 local (20:39 UTC)
Place
Atlanta, GA
Injuries
118 uninjured
Damage
No damage
Phase of flight
Landing
Aircraft
N978ATBoeing 717-200
Weather
Visual (VMC) · Day
Status
Completed · report March 30, 2005
Report
Approved by Office Director
Parties
Atlanta SDO
FAA report
20040305003079I
Case key
58916

From the NTSB’s public API. By law, NTSB reports can’t be used as evidence in lawsuits over the incident.

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Probable cause

The failure of the tantalum capacitor and the permanent magnet generator input transformer which resulted in total electrical system failure.

Sequence of events

NTSB’s coding before 2008: each occurrence and phase of flight, and the causes and factors under it. The codes are defined in NTSB’s coding manual.

Airframe/component/system failure/malfunctionEmergency landing after takeoff
Electrical system - failure,totalCause

Analysis

According to the captain, during the climb out from runway 26L at approximately 200 feet, the number 6 display unit on the pilot's instrument panel went blank and the engine alert display left generator off alert displayed. The first officer requested radar vectors from the Atlanta Tower. After contacting the tower the airplane had a complete electrical power failure, and communications with the Atlanta Tower was lost. Emergency electrical power was restored shortly after the electrical failure. The flight attendants advised the captain that there was smoke in the aft part of the cabin area. The captain and first officer "smelled an electrical burning smell", and declared an emergency. The captain returned to the airport and made an emergency landing, and evacuated the airplane on runway 9R. Examination of the Power Conversion Distribution Unit revealed that the tantalum capacitor and the permanent magnet generator input transformer failed. The failed transformer was the apparent source of the smoke in the cabin. No other anomalies were reported by the captain.

Factual narrative

On March 5, 2004, at 1539 eastern standard time, a Boeing 717-200, N978AT, operating as flight Citrus 852, registered to Wells Fargo Bank Northwest NA Trustee and operated by Air Tran Airways Incorporated, reported smoke in the passenger cabin during takeoff climb form Hartsfield-Jackson International Airport, Atlanta, Georgia. The scheduled domestic passenger flight was operated under the provisions of Part 121 CFR Title 14 with an IFR flight plan filed. Visual meteorological conditions prevailed at the time of the incident, and there was no damage to the airplane. The airline transport rated captain, airline transport rated first officer, three flight attendants, and 116 passengers were uninjured. The flight departed Hartsfield-Jackson International Airport, Atlanta, Georgia on March 5, 2004 at 1405.

According to the captain, during the climb out from runway 26L at approximately 200 feet, the number 6 display unit on the pilot's instrument panel went blank and the engine alert display (EAD) left generator off alert displayed. The first officer requested radar vectors from the Atlanta Tower. After contacting the tower the airplane had a complete electrical power failure, and communications with the Atlanta Tower was lost. Emergency electrical power was restored shortly after the electrical failure. The flight attendants advised the captain that there was smoke in the aft part of the cabin area. The captain and first officer "smelled an electrical burning smell", and declared an emergency. The captain returned to the airport and made an emergency landing, and evacuated the airplane on runway 9R.

According to the flight attendant, during the first taxi departure the airplane returned to the gate for mechanical problems. As the airplane taxied out and proceeded to takeoff the emergency lights came on in the cabin. The flight attendant in the forward jump seat yelled, " smoke in the cabin". Smoke was observed emitting from the baseboard vents on the left of the aircraft. The flight attendant notified the captain of the smoke condition and the captain replied, "We are going back". The smoke was extinguished and an announcement was made to inform the passengers that we were returning to the airport..

Examination of the Power Conversion Distribution Unit revealed that the tantalum capacitor and the permanent magnet generator input transformer failed. No other anomalies were reported by the captain.

Aircraft

Registration
N978AT
Reported as
Boeing 717-200
Category
Airplane
Serial number
55037
Engine
Rolls-Royce BR 715, 18,500 lbs thrust, turbo fan
Damage
No damage
Flight
Part 121
Operator
Airtran Airways Inc
Airworthiness certificate
Standard, Transport
Departed
ATL · Atlanta, GA
Destination
MSP · Minneapolis, MI
Flight plan
IFR
Airport
ATL · The William B Hartsfield Atlan, runway 9R, 9,001 × 150 ft, asphalt

Matched to the registry by N-number and the event date; the registry’s history has gaps, so older matches can be wrong. Compare the reported make and model.

Flight crew · 2

As NTSB recorded them. NTSB leaves out names.

Role
Pilot
Age
32
Injuries
None
Certificates
Commercial, 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
7,300 total
Role
Co-pilot
Age
37
Injuries
None
Certificates
Airline transport, Commercial
Airplane ratings
Single-engine land, Multi-engine land
Instrument ratings
Airplane
Medical
Class 1, Valid Medical--no waivers/lim.
Seat
Right
Flight hours
8,000 total

Weather

Conditions
Visual (VMC) · Day
Wind
190° at 10 knots
Visibility
10 statute miles
Lowest ceiling
9,000 ft broken
Temperature
75 °F, dew point 63 °F
Altimeter
30.06 inHg
Observed at
KATL

FAA reports on this event · 1

The FAA’s own accident and incident reports, matched to the aircraft by N-number and date.