Swiftair MD83 at Kandahar on Jan 24th 2012, wing tip strike
Last Update: November 1, 2013 / 18:31:06 GMT/Zulu time
Incident Facts
Date of incident
Jan 24, 2012
Airline
Swiftair
Aircraft Registration
EC-JJS
Aircraft Type
McDonnell Douglas MD-83
ICAO Type Designator
MD83
The accident was likely caused by the failure to observe the company’s operating procedures and not executing a go-around when the approach was clearly not stabilized. Moreover, the operator lacked the authorization (and the crew the training) to carry out the RNAV (GPS) approach maneuver that was conducted at RWY 05 of the Kandahar Airport.
Contributing to the accident was:
• The inoperable status of the PAPI at runway 05 of the Kandahar Airport, which was thus unable to aid the crew to establish the aircraft on the correct descent slope.
The CIAIAC reported that the captain provided testimony that he did not notice anything unusual with regards to the wind. They encountered a head wind with nearly no crosswind component. The approach was entirely stabilized, however, in the flare the aircraft drifted slightly to the left threatening to take them off the runway, hence he corrected by rolling the aircraft to the right. Even though they were drifting a bit they were always aligned with the runway.
The first officer provided testimony that when they were fully established over the runway a strong gust from the right pushed them left of the center line, in the attempt to correct the captain rolled the aircraft right, the first officer believed they might have struck the ground with the right wing as result.
The tower controller provided testimony that he saw an unusual bright light appear south of the runway, he wasn't sure whether this was an aircraft or vehicle and looked up the radar screen seeing the MD-83 was lined up over the extended runway center line. Subsequently he saw the aircraft emerge out of the dust (1200 meters visibility) about 50-100 feet above ground in the final approach area making quick corrections, he decided to radio anything as the aircraft was in a critical phase of flight, but he called out aloud to alert his two collegues in the tower. He then saw sparks coming from the aircraft as if a wing tip had struck the runway. The aircraft continued landing and rolled out. When the aircraft rolled past the tower he could see the wing was bent, he alerted emergency services and took over the control position from the controller in training. He instructed the crew to hold position after vacating the runway at taxiway C, emergency services would check them out.
The CIAIAC complained that the crew did not make any effort to preserve the cockpit voice recorder able to store 30 minutes of cockpit audio, the recordings were lost while maintenance was analysing the damage.
The CIAIAC analysed based on wind data recordings that the aircraft encountered a crosswind component of 2 knots gusting up to 2.44 knots and said: " In light of these values, the approach cannot be regarded as having taken place in crosswind conditions (a finding that is confirmed by the pilots’ statements)."
The CIAIAC analysed that when the aircraft went through 1000 feet AGL during the instrument approach, the stabilized criteria were not met at that gate and the approach should have been abandoned. At that point the aircraft was right of the runway center line requiring a subsequent 20 degrees turn to the left to correct after the crew became visual with the runway about 500 feet above minimums.
In addition the CIAIAC analysed that while descending through 1000 feet the aircraft should have been between Vref and Vref+20, between 135 and 155 knots, however did 192 KIAS, therefore another reason to abort the approach and go-around.
The CIAIAC said in their analysis: "The statements of the control tower controller also confirmed that when the aircraft was within visual range, it was in an unusual position (too low), so much so that he wondered whether it was a car’s headlights that he was seeing."
The CIAIAC analysed that during the short final the roll angles were excessive from -25 degrees (left) to +20 degrees to the right. It is likely the spoilers deflected asymmetrically to support roll with the control wheels deflected at more than 5 degrees.
The wingtip made contact with the ground about 20 meters before the runway threshold at a speed of 122 KIAS and an instant vertical speed of -720 feet per minute, the aircraft was rolled right at 20 degrees of bank angle and 9 degrees of nose up pitch angle. Following impact the bank angle reduced from 20 to 5 degrees within one second, the right wing still impacted the runway threshold lights and took out five of them.
Three safety recommendations were issued to Swiftair as result of the investigation.
Incident Facts
Date of incident
Jan 24, 2012
Airline
Swiftair
Aircraft Registration
EC-JJS
Aircraft Type
McDonnell Douglas MD-83
ICAO Type Designator
MD83
This article is published under license from Avherald.com. © of text by Avherald.com.
Article source
You can read 2 more free articles without a subscription.
Subscribe now and continue reading without any limits!
Read unlimited articles and receive our daily update briefing. Gain better insights into what is happening in commercial aviation safety.
Send tip
Support AeroInside by sending a small tip amount.
Related articles
Fleet type match
Swift AT42 at Ostrava on Oct 31st 2023, engine fire
A Swiftair Avions de Transport Regional ATR-42-300 freighter, registration EC-IVP performing flight WT-1907 from Ostrava (Czech Republic) to Cologne…
Fleet type match
Swift B734 at Montpellier on Sep 24th 2022, overran runway on landing
A Swiftair Boeing 737-400 freighter on behalf of West Atlantic Sweden, registration EC-NLS performing flight SWN-5745 from Paris Charles de Gaulle to…
Fleet type match
Swift AT72 at Palma Mallorca and Madrid on Feb 19th 2021, tyre damage on departure
A Swiftair Avions de Transport Regional ATR-72-212A, registration EC-LYJ performing flight from Palma Mallorca,SP to Madrid,SP (Spain) with 2 crew,…
Swift B733 at Dayton on Mar 17th 2022, dropped tyre on departure
A Swift Air Boeing 737-300, registration N397SW performing flight WQ-257 from Dayton,OH to Newark,NJ (USA), departed Dayton's runway 24R and…
Swift B734 near Cologne on Dec 22nd 2021, loss of cabin pressure
A Swiftair Boeing 737-400 on behalf of DHL, registration EC-NMK performing freight flight QY-8842 from Cologne (Germany) to Madrid,SP (Spain), was…
Newest articles
Fleet type match
ANZ B789 over Timor Sea on Apr 16th 2024, turbulence injures passenger
An ANZ Air New Zealand Boeing 787-9, registration ZK-NZC performing flight NZ-65 from Denpasar (Indonesia) to Auckland (New Zealand), had just…
Fleet type match
Southwest B38M at Washington on Apr 18th 2024, runway incursion forces rejected takeoff
A Southwest Airlines Boeing 737-8 MAX, registration N8710M performing flight WN-2937 from Washington National,DC to Orlando,FL (USA), was taxiing for…
Subscribe today
Are you researching aviation incidents? Get access to AeroInside Insights, unlimited read access and receive the daily newsletter.
Pick your plan and subscribePartner
A new way to document and demonstrate airworthiness compliance and aircraft value. Find out more.
ELITE Simulation Solutions is a leading global provider of Flight Simulation Training Devices, IFR training software as well as flight controls and related services. Find out more.
Your regulation partner, specialists in aviation safety and compliance; providing training, auditing, and consultancy services. Find out more.
AeroInside Blog
Popular aircraft
Airbus A320Boeing 737-800
Boeing 737-800 MAX
Popular airlines
American AirlinesUnited
Delta
Air Canada
Lufthansa
British Airways