Vliegtuigongeval op 31 JUL 1997 met McDonnell Douglas MD-11F N611FE

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Status:	Accident investigation report completed and information captured
Datum:	donderdag 31 juli 1997
Tijd:	01:31
Type:	McDonnell Douglas MD-11F
Luchtvaartmaatschappij:	FedEx
Registratie:	N611FE
Constructienummer:	48604/553
Bouwjaar:	1993
Aantal vlieguren:	13034
Aantal vluchten:	2950
Motoren:	3 General Electric CF6-80C2D1F
Bemanning:	slachtoffers: 0 / inzittenden: 3
Passagiers:	slachtoffers: 0 / inzittenden: 2
Totaal:	slachtoffers: 0 / inzittenden: 5
Schade:	Vernield
Gevolgen:	Written off (damaged beyond repair)
Plaats:	Newark International Airport, NJ (EWR) ( Verenigde Staten)
Fase:	Landing (LDG)
Soort vlucht:	Vracht
Vliegveld van vertrek:	Anchorage International Airport, AK (ANC/PANC), Verenigde Staten
Vliegveld van aankomst:	Newark International Airport, NJ (EWR/KEWR), Verenigde Staten
Vluchtnummer:	14

Beschrijving:
The aircraft touched down 1175 feet down runway 22R at 149 knots with a 500f/min descent rate and 1,67g acceleration. The flight bounced, yawed and rolled right, and touched down again 2275 feet from the threshold, at 1,7g (lateral acceleration 0,4g to the right) and dragging the no. 3 engine 238 feet further on. The right roll, pinning the no. 3 engine to the ground, possibly continued until the right wing's spars broke. The MD-11 skidded off the right side of the runway and ended up on its back 4800 feet from the threshold and just short of Terminal B.
The aircraft, N611FE, had suffered a similar incident (bounced on landing) in Anchorage, November 4, 1994.

Probable Cause:

PROBABLE CAUSE: "The captains overcontrol of the airplane during the landing and his failure to execute a go-around from a destabilized flare. Contributing to the accident was the captains concern with touching down early to ensure adequate stopping distance."

Accident investigation:

Investigating agency:	NTSB
Status:	Investigation completed
Duration:	3 years
Accident number:	NTSB/AAR-00-02
Download report:	Final report

Bronnen:

» Aviation Week & Space Technology 15.09.1997 (31-32)
» Aviation Week & Space Technology 11.08.1997 (38)

Veiligheidsmaatregelen

NTSB issued 12 Safety Recommendations

Issued: 25-AUG-2000	To: FAA	A-00-100
Sponsor a National Aeronautics and Space Administration (NASA) study of the stability and control characteristics of widely used, large transport-category airplanes to (Closed - Acceptable Alternate Action)
Issued: 25-AUG-2000	To: FAA	A-00-101
Based on the results of the study recommended in A-00-100, implement improved certification criteria for transport-category airplane designs that will reduce the incidence of landing accidents. (Closed - Reconsidered)
Issued: 25-AUG-2000	To: FAA	A-00-102
Conduct a study to determine if landing gear vertical overload fusing offers a higher level of safety than when the gear is overdesigned. If fusing offers a higher level of safety, revise 14 Code of Federal Regulations Part 25 to require vertical overload fusing of landing gear. (Closed - Acceptable Alternate Action)
Issued: 25-AUG-2000	To: FAA	A-00-103
Require manufacturers of 14 Code of Federal Regulations Part 23 and part 25 airplanes and Part 121 operators to revise their hard landing inspection and reporting criteria to account for all factors that can contribute to structural damage; instruct principal maintenance and operations inspectors assigned to Part 121 operators to ensure that these changes have been made to operator maintenance manuals and flight operations quality assurance exceedence monitoring programs. (Open - Acceptable Response)
Issued: 25-AUG-2000	To: FAA	A-00-92
Convene a joint government-industry task force composed, at a minimum, of representatives of manufacturers, operators, pilot labor organizations, and the FAA to develop, within 1 year, a pilot training tool to do the following (Closed - Reconsidered)
Issued: 25-AUG-2000	To: FAA	A-00-93
Convene a joint government-industry task force composed, at a minimum, of representatives of manufacturers, operators, pilot labor organizations, and the FAA to develop, within 1 year, a pilot training tool to do the following (Closed - Acceptable Action)
Issued: 25-AUG-2000	To: FAA	A-00-94
Convene a joint government-industry task force composed, at a minimum, of representatives of manufacturers, operators, pilot labor organizations, and the FAA to develop, within 1 year, a pilot training tool to do the following (Closed - Acceptable Action)
Issued: 25-AUG-2000	To: FAA	A-00-95
Require principal operations inspectors assigned to Part 121 carriers that use auxiliary performance computers to review and ensure the adequacy of training and procedures regarding the use of this equipment and the interpretation of the data generated, including landing distance data. (Closed - Acceptable Action)
Issued: 25-AUG-2000	To: FAA	A-00-96
Require the installation, within 1 year, of the MD-11 flight control computer-908 software upgrade on all MD-11 airplanes. (Closed - Acceptable Alternate Action)
Issued: 25-AUG-2000	To: FAA	A-00-97
Require, on all MD-11\'s equipped with the flight control computer-908 software, the retrofit of digital flight data recorder systems with all additional parameters required to precisely identify and differentiate between pilot and longitudinal stability augmentation system (LSAS) elevator control activity, including control column force, inertial reference unit pitch rate, LSAS command signals, elevator positions, and automatic ground spoiler command signals. (Closed - Unacceptable Action)
Issued: 25-AUG-2000	To: FAA	A-00-98
Review and, if appropriate, revise the DC-10 and MD-11 throttle resolver angle (TRA)-driven ground spoiler knockdown feature to ensure that it does not prevent ground spoiler deployment at moderate TRAs that could be associated with sink rate and airspeed corrections during the landing phase. (Closed - Acceptable Action)
Issued: 25-AUG-2000	To: FAA	A-00-99
Require DC-10 and MD-11 operators to provide their pilots with information and training regarding the ground spoiler knockdown feature and its effects on landing characteristics and performance. (Closed - Acceptable Action)

Show all...

Foto's

accident date: 31-07-1997
type: McDonnell Douglas MD-11F
registration: N611FE

Kaart

Deze kaart geeft het vliegveld van vetrek weer en de geplande bestemming van de vlucht. De lijn tussen de vliegvelden geeft niet de exacte vliegroute weer.
De afstand tussen Anchorage International Airport, AK en Newark International Airport, NJ bedraagt 5368 km (3355 miles).

This information is not presented as the Flight Safety Foundation or the Aviation Safety Network’s opinion as to the cause of the accident. It is preliminary and is based on the facts as they are known at this time.

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