|Title:||Tail strike during take-off, Boeing 747-412 9V-SMT, flight SQ286, Auckland International Airport 12 March 2003|
|Micro summary:||This Boeing 747-412 experienced a tail strike on takeoff.|
|Event Time:||2003-03-12 at 1548 NZDT|
|Publishing Agency:||Transport Accident Investigation Commission (TAIC)|
|Publishing Country:||New Zealand|
|Site of event:||Auckland International Airport|
|Departure:||Auckland International Airport, Auckland, New Zealand|
|Destination:||Changi Intenrational Airport, Singapore|
|Airplane Type(s):||Boeing 747-412|
|Type of flight:||Revenue|
|Executive Summary:||On Wednesday 12 March 2003, at 1547, flight SQ286, a Boeing 747-412 registered 9V-SMT, started its take-off at Auckland International Airport for a direct 9-hour flight to Singapore. On board were 369 passengers, 17 cabin crew and 3 pilots. |
When the captain rotated the aeroplane for lift-off the tail struck the runway and scraped for some 490 metres until the aeroplane became airborne. The tail strike occurred because the rotation speed was 33 knots less than the 163 knots required for the aeroplane weight. The rotation speed had been mistakenly calculated for an aeroplane weighing 100 tonnes less than the actual weight of 9V-SMT.
A take-off weight transcription error, which remained undetected, led to the miscalculation of the take-off data, which in turn resulted in a low thrust setting and excessively slow take-off reference speeds. The system defences did not ensure the errors were detected, and the aeroplane flight management system itself did not provide a final defence against mismatched information being programmed into it.
During the take-off the aeroplane moved close to the runway edge and the pilots did not respond correctly to a stall warning. Had the aeroplane moved off the runway or stalled a more serious accident could have occurred.
The aeroplane take-off performance was degraded by the inappropriately low thrust and reference speed
settings, which compromised the ability of the aeroplane to cope with an engine failure and hence compromised the safety of the aeroplane and its occupants.
Safety recommendations addressing operating procedures and training were made to the operator, and a recommendation concerning the flight management system was made to the aeroplane manufacturer.
|Learning Keywords:||Operations - Center of Gravity/MAC|
|Operations - Crew Resource Management|
|Operations - Tailstrike|
|Systems - Automation Design|
|Systems - INS/FMS/PMCS mis-entry|
|Consequence - Damage - Airframe or fuselage|
|Close match:||Tailstrike on takeoff, Serious incident occurring on November 29, 2002 at Dortmund Airport involving a Boeing 737-800|
|Uncommanded rotation, Incident involving aircraft LN-RPL at Gothenburg/Landvetter Airport, O county, Sweden, on 7 December 2003|
|Loading error, Airbus A340-642, G-VSHY|
|Uncommanded pitch-up, Airbus A320-214, G-OOAR|
|Tail strike on rotation, Boeing 777-200B, N784UA|
|Uncommanded pitch-up, Fokker F27-600 Friendship, G-CHNL|
|Loss of Pitch Control During Takeoff, Air Midwest Flight 5481, Raytheon (Beechcraft) 1900D, N233YV, Charlotte, North Carolina, January 8, 2003|
|Stall on takeoff, Bombardier CL-600-2B16 (CL-604), C-FTBZ , Mid-Continent Airport, Wichita, Kansas, October 10, 2000|
|Uncontrolled Impact With Terrain, Fine Airlines Flight 101, Douglas DC-8-61, N27UA, Miami, Florida, August 7, 1997|
|Loss of control on takeoff, United Airlines Flight 2885, N8053U, McDonnell Douglas DC-8-54F, Detroit, Michigan, January 11, 1983|
|Weight and Balance complications, McDonnell Douglas MD-83, March 7, 2000|
|Tail strike on takeoff, Boeing 747-128, December 28, 2001|
|Tail strike on landing from FMS error, McDonnell Douglas MD-11, November 11, 1998|
|Runway overrun, Airbus A320, Detroit, March 17, 2001|
|Runway overrun Onur Air, Runway overrun after rejected take-off of the Onur Air MD-88, registration TC-ONP, at Groningen Airport Eelde on 17 June 2003|
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