SAS B738 at Oslo on May 25th 2015, overran runway on landing

Last Update: April 14, 2016 / 18:35:54 GMT/Zulu time

Bookmark this article

Photo of SAS Scandinavian Airlines LN-RCZ, Boeing 737-800 — SAS Scandinavian Airlines LN-RCZ, Boeing 737-800 (Photo credit: OsdPhoto.com / Flickr / License: CC by)

Incident Facts

Date of incident
May 25, 2015

Classification
Incident

Cause
Overran runway on landing

Airline
SAS Scandinavian Airlines

Flight number
SK-4425

Departure
Tromso, Norway

Destination
Oslo, Norway

Aircraft Registration
LN-RCZ

Aircraft Type
Boeing 737-800

ICAO Type Designator
B738

Airport
Oslo Gardermoen Airport, Oslo

Airport ICAO Code
ENGM

A SAS Scandinavian Airlines Boeing 737-800, registration LN-RCZ performing flight SK-4425 from Tromso to Oslo (Norway) with 176 people on board, landed on Oslo Gardermoen Airport's wet runway 01L but skidded past the end of the runway end, contacted and damaged two runway lights before coming to a stop on the paved surface of the runway end safety area. Emergency services responded and checked the aircraft, the aircraft was able to maneouver out of its position on own power and taxi to the apron. There were no injuries, the aircraft sustain minor damage.

On Jun 1st 2015 Norway's Statens Haverikommisjon for Transport (SHT, AIBN) reported the aircraft was unable to stop before the last exit of shortened and slippery runway 01L and came to a stop on the paved surface just north of last exit A9. The aircraft sustained minor damage due to collision with runway light fixtures but was able to taxi to the apron on own power. The runway had been shortened due to resurfacing. The AIBN opened an investigation into the incident.

On Apr 14th 2016 the AIBN released their final report in Norwegian with English Summary concluding the probable causes of the incident were:

It is the AIBN’s view that multiple factors contributed to the fact that SAS4425 was unable to stop before the runway end. The flight crew decided to land with a landing configuration not suitable for the actual weather and runway conditions, in addition to late engagement of full «thrust reversers» after landing.

Several crew on previous flights had reported very slippery conditions on the last part of the runway. A landing ahead of the investigated landing also experienced trouble with achieving sufficient deceleration. This landing was performed with optimum landing configuration and technic.

The airport operator had not, to a sufficient extent, assessed the risk of the combination of shortened runway and poor friction during precipitation. In this case, these factors in addition to tailwind condition resulted in reduced safety margins.

The runway had been shortened from 3600 to 1928 meters, the last 300 meters consisted of concrete. A NOTAM indicated the runway was slippery when wet. The aircraft passed 1000 and 500 feet AGL matching stabilized approach criteria, however, was unable to achieve sufficient deceleration after touch down and came to a stop 50 meters past the runway end in the runway end safety area. The aircraft sustained minor damage as result of collision with runway light fixtures.

Metars:
ENGM 251850Z 25005KT 220V320 9999 -SHRA FEW040CB BKN044 08/04 Q1006 TEMPO SHRA
ENGM 251820Z 21009KT 180V240 9999 -SHRA FEW029CB BKN033 08/04 Q1006 TEMPO SHRA
ENGM 251750Z 21008KT 170V250 9999 -SHRA SCT035CB BKN047 08/05 Q1006 TEMPO SHRA
ENGM 251720Z 22009KT 9999 -SHRA FEW026CB SCT036 BKN048 09/04 Q1006 TEMPO SHRA
ENGM 251650Z 22009KT 170V250 9999 -SHRA FEW018 FEW025CB BKN030 08/05 Q1006 TEMPO SHRA
ENGM 251620Z VRB02KT 9999 -SHRA FEW037 BKN044 11/02 Q1006 NOSIG
ENGM 251550Z 36006KT 330V030 9999 VCSH FEW037 BKN047 11/02 Q1006 TEMPO SHRA
ENGM 251520Z 01005KT 320V100 9999 SCT047 BKN061 11/04 Q1006 TEMPO SHRA
ENGM 251450Z VRB04KT CAVOK 12/03 Q1005 TEMPO SHRA
ENGM 251420Z 09005KT 020V140 9999 VCSH FEW045 BKN073 11/05 Q1005 TEMPO SHRA
ENGM 251350Z 01005KT 9999 -SHRA FEW025 SCT050 BKN071 10/04 Q1005 TEMPO SHRA

Relevant NOTAMs:
A1070/15 - DISPLACED THR 01L, SHORTENED RWY 19R, RWY CONFIG X, TORA/TODA/ASDA/LDA 1928M, REF AIP SUP 05/15. 12 APR 05:00 2015 UNTIL 29 MAY 19:00 2015 ESTIMATED. CREATED: 08 APR 19:36 2015
A1394/15 - RWY 01L LAST 300M WITH CONCRETE SLIPPERY WHEN WET. 18 MAY 05:00 2015 UNTIL 29 MAY 19:00 2015. CREATED: 17 MAY 21:18 2015
A1079/15 - RWY MARKINGS ON 01L/19R 01R/19L CHANGED FM YELLOW TO WHITE. A MIX OF YELLOW AND WHITE MARKINGS WILL OCCURE IN THE TRANSITION PERIOD. 10 APR 12:30 2015 UNTIL 31 AUG 23:59 2015 ESTIMATED. CREATED: 09 APR 11:28 2015