MASWings DHC6 at Mukah on Oct 26th 2015, runway excursion on landing, burst tyre

Last Update: September 21, 2021 / 14:11:43 GMT/Zulu time

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Incident Facts

Date of incident
Oct 26, 2015

Classification
Incident

Airline
MASWings

Flight number
MH-3553

Destination
Mukah, Malaysia

Aircraft Registration
9M-SSD

ICAO Type Designator
DHC6

A MASWings de Havilland DHC-6-400 Twin Otter, registration 9M-SSD performing flight MH-3553 from Miri to Mukah (Malaysia) with 8 passengers and 2 crew, landed on Mukah's runway 08 in good weather at about 09:20L (01:20Z) but veered left off the runway and came to a stop with all gear on soft ground with the left main tyre blown almost abeam the terminal about 960 meters/3150 feet down the runway. There were no injuries, the aircraft sustained minor damage to the left main wheel.

A similiar runway excursion had happened two months ago, see Incident: MASWings DHC6 at Mukah on Aug 26th 2015, runway excursion on landing.

Malaysia's Ministry of Transport released their final report concluding the probable cause of the incident was:

It is believed that the tyre was deflated due to the excessive force being acted on the left main wheel during skid on the runway thus causing the tyre cover bead to dislodge from the wheel hub assembly. The reason for the skid was not technically inclined as the aircraft brakes were confirmed to operating normally.

According to the crew reported the aircraft touched down "positively", the crew noticed the aircraft banked to the left. Center line was maintained using rudder pedal inputs, however, as speed decayed the aircraft veered to the left.

The aircraft does not feature an anti-skid system, the brakes pressure is directly proportional to the pilot inputs on the brakes pedal.

No Metars and local weather data are available, Metars of Sibu Airport 37nm south of Mukah:
WBGS 260400Z 08005KT 9999 SCT016 BKN150 29/24 Q1011
WBGS 260300Z 04001KT 9999 FEW014 BKN150 27/24 Q1012
WBGS 260200Z 03002KT 9999 FEW008 SCT016 BKN150 25/24 Q1012
WBGS 260100Z 08001KT 9999 -RA FEW008 SCT018 BKN140 24/23 Q1012
WBGS 260000Z 00000KT 8000 -RA FEW006 SCT016 BKN140 22/22 Q1012
WBGS 252300Z 03001KT 6000 -RA FEW006 SCT016 BKN140 23/22 Q1011 RETSRA
WBGS 252200Z 10005KT 6000 TSRA FEW015CB SCT016 BKN140 22/22 Q1011
Incident Facts

Date of incident
Oct 26, 2015

Classification
Incident

Airline
MASWings

Flight number
MH-3553

Destination
Mukah, Malaysia

Aircraft Registration
9M-SSD

ICAO Type Designator
DHC6

This article is published under license from Avherald.com. © of text by Avherald.com.
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