Central America

Findings and Probable Cause could not be determined as the aircraft was stripped of its components, instrumentations, manuals and CVR by the owners of the aircraft, without permission or authorization from the Accident Investigation Personnel (Department of Civil Aviation). Documents and manuals requested of the owners were never obtained. The help of the NTSB as well as the FAA were enlisted in an effort to retrieve documents from the owners. All attempts were fruitless.

The investigation determines that the probable causes of this accident to be the following;
• Substandard maintenance that was performed. (Due to the improper flange on the hydraulic line, the hydraulic line came loose from its housing and depleted the fluid from the hydraulic
reservoir).
• Failure of the back up emergency blow down bottle system. It has been determined from inspection that the cable that connects the emergency blow down bottle system in the nose well of the aircraft to the T-handle in the cockpit, exhibited excessive play. Therefore even though the cable was pulled all the way to its fullest extent, it did not allow movement of the pin that would have provided activation of the system. Annual inspection report completed in December 2005 revealed that the portion of the Annual Inspection that required inspection of the emergency blow down bottle was not signed off by the mechanic as having been accomplished. However, the aircraft was returned to service with this discrepancy outstanding.
• Pilot’s lack of qualification and unfamiliarity with this aircraft, its systems and emergency procedures. ( Evidence of falsification of qualification and time requirement exists in pilot’s logbook).
• Pilot’s poor decision making and impaired judgement. (Possibility of impaired judgement due to pilot fatigue).
• Pilot’s failure in assessing the severity of his situation.
• Pilot’s failure to notify ATC of his problem. (Problem was discovered 20 miles prior to the accident).
• Pilot’s failure to properly assess the conditions for landing and maintain vigilant situational awareness while manoeuvring the aircraft after landing. (From post accident inspection, it was noted that the flaps were not extended for the landing. Had it been extended the aircraft glide path as well as the distance required for roll out after landing may have been greatly decreased).
• Pilot’s failure to take immediate action once he realized his predicament. (Pilot stated that after the propeller made contact with the ground, he decided to apply power and go around, but it was too late. Failure to act also can be attributed to possible pilot fatigue as (pilot was out all day shopping and then decided to leave at such a late hour) well as pilot’s unfamiliarity with aircraft systems and performance capabilities).
• Pilot’s failure to request Emergency Service Assistance. Had this service been requested in a timely manner, preparations could have been made to prevent the fire from spreading to the degree in which it did.

The loss of engine power in both engines for an unknown reason.

The accident was the consequence of a loss of control on short final following the combination of the following factors:
- An elevator cable probably broke away due to a progressive wear combined with a damaged pulley,
- The proximity of the terrain,
- The low speed of the aircraft,
- The lack of crew training in such situation,
- The loss of control of the aircraft occurred at a critical phase of the flight, initially caused by a mechanical failure and later to human factors.