Investigation Summary
The flight was a non-scheduled charter carrying six passengers, including a Pahang state executive councillor. During the approach to Runway 15, the Pilot in Command (PIC) was seated in the right seat acting as Pilot Flying, while the Second in Command (SIC), who was not type-rated on the aircraft, occupied the left seat as Pilot Monitoring. As the crew performed the Before Landing checklist at approximately 1,000 feet, the SIC reported the lift dump handle was unlocked. Within seconds of this acknowledgment, the aircraft suffered a sudden loss of control. The investigation found the lift dump handle in the extended position at the crash site. The lift dump system on the Beechcraft 390 is intended for ground use only to reduce lift and increase braking effectiveness; extending it in flight causes a severe nose-up pitch and rapid loss of airspeed and lift. The AAIB highlighted that the crew's seating arrangement and the SIC's lack of formal training on the type contributed to the fatal error.
Final Conclusions
The Malaysian Air Accident Investigation Bureau (AAIB) released its Final Report (A05/23) on 16 August 2024. The primary cause was the inadvertent extension of the lift dump spoilers by the flight crew during the Before Landing checklist. Contributing factors included deviations from standard operating procedures, inadequate crew training on the specific aircraft type, regulatory grey areas regarding the operator's approval for such flights, and deficiencies in cockpit communication and decision-making.
Video Analysis
Moment private jet crashes on highway in Malaysia — News coverage and dashcam footage showing the Beechcraft 390 crashing onto the Guthrie Corridor Expressway near Elmina, Shah Alam.
If playback is blocked, the owner has disabled embedding — use the link above.
Airframe & Maintenance
Crew Experience
Captain
Pilot in Command (PIC) seated in the right seat.
First Officer
Second in Command (SIC) seated in the left seat; not type-rated on the aircraft.
Systems & Failure Modes
Lift Dump Spoilers
A system designed to dump lift and increase drag upon landing to improve braking. Inadvertent deployment in flight causes a sudden, catastrophic loss of lift.
Cockpit Voice Recorder (CVR)
The L3Harris FA2100 CVR was recovered and successfully analyzed, providing the critical audio evidence of the checklist execution and subsequent loss of control.
EGPWS
The Enhanced Ground Proximity Warning System provided 'sink rate' and 'pull up' alerts in the final seconds before impact.
Interesting Facts
- 01The aircraft was not equipped with a flight data recorder (FDR), which was not required for this aircraft type under current regulations.
- 02The investigation relied heavily on Cockpit Voice Recorder (CVR) audio and ground-based ADS-B data to reconstruct the flight profile due to the absence of an FDR.
- 03The Second in Command (SIC) was not type-rated on the Beechcraft 390 Premier I.
- 04The lift dump handle was found in the 'EXT' (extended) position in the wreckage.
- 05The crash killed two people on the ground: a car driver and a motorcyclist.
- 06The aircraft struck the road surface wing-first at high speed before exploding.
- 07The operator, Jet Valet, had not obtained the necessary approvals from CAAM for certain aspects of the operation.
- 08The aircraft was manufactured in 2004 (MSN RB-97) and previously held registrations G-FRYL and N6197F.
Safety Actions & Advisories
Crew Training and Seating
The investigation emphasized the necessity for pilots to be properly type-rated and for operators to adhere to strict seating and duty assignments.
Regulatory Oversight
The report called for clearer regulatory frameworks and better enforcement regarding private flight service approvals by the Civil Aviation Authority of Malaysia (CAAM).
Location
ACCIDENT SITE · Coordinates taken from the official investigation report.