October 2006 - ZS-OMF - Jetstream 4100
Posted: 26 Dec 2008, 06:17
October 2006 - ZS-OMF Jetstream 4100 (SA Airlink) operated by Mocambique Expresso left Durban for Maputo.(3crew, 17pax)
*Climbing through FL120 the prop ice indicators warn about icing conditions.
*Captain cancels warning and switches on de-icing on both propellors and continues climb toward FL210.
*At FL180 both engines flame out.
*Captain switches on engine anti-icing on both engines.
*Left hand engine relit automatically after 6 seconds. Right hand engine did not relight.
*Soon after this the aircraft entered an uncontrolled roll to the right.
*Over the next 75 seconds the aircraft completed two full rolls, the first in a steep nose-down attitude (-70deg).
*The captain pulled the arcraft up at 4000ft where it pulled +5g.
*The second roll began at 45deg nose up and ended at 30deg nose down.
*Between the two rolls, the aircraft reached over 400 knots IAS and lost 13000 feet in 45 seconds.
*During the descent, over speed situations were evident on both props and engines.
*At FL050 the pilot regained control but the aircraft continued descending rapidly.
*The captain managed to restart the right hand engine manually at below 1000ft AGL.
*Here-after he initiated a climb and returned to Durban.
Damage to aircraft - R/H wing /fuselage - cracks
R/H wing/fuselage fairing - cracks
Forward wing Nacelle Fillet - Disbonded along wing and deformed. (corner flapped up)
On examining the R/H engine it was found that the Negative Torque Sensing (NTS) system was faulty and did not work following the flameout.
Big up to BAe and the pilots....
*Climbing through FL120 the prop ice indicators warn about icing conditions.
*Captain cancels warning and switches on de-icing on both propellors and continues climb toward FL210.
*At FL180 both engines flame out.
*Captain switches on engine anti-icing on both engines.
*Left hand engine relit automatically after 6 seconds. Right hand engine did not relight.
*Soon after this the aircraft entered an uncontrolled roll to the right.
*Over the next 75 seconds the aircraft completed two full rolls, the first in a steep nose-down attitude (-70deg).
*The captain pulled the arcraft up at 4000ft where it pulled +5g.
*The second roll began at 45deg nose up and ended at 30deg nose down.
*Between the two rolls, the aircraft reached over 400 knots IAS and lost 13000 feet in 45 seconds.
*During the descent, over speed situations were evident on both props and engines.
*At FL050 the pilot regained control but the aircraft continued descending rapidly.
*The captain managed to restart the right hand engine manually at below 1000ft AGL.
*Here-after he initiated a climb and returned to Durban.
Damage to aircraft - R/H wing /fuselage - cracks
R/H wing/fuselage fairing - cracks
Forward wing Nacelle Fillet - Disbonded along wing and deformed. (corner flapped up)
On examining the R/H engine it was found that the Negative Torque Sensing (NTS) system was faulty and did not work following the flameout.
Big up to BAe and the pilots....
