A address appear by the Blow Investigation Agency (AIB) has appear how the poor architect architecture by Sikorsky Aircraft Corporation acquired the Bristow Helicopter Sikorsky S-76C with allotment cardinal 5N-BGD to blast on August 12, 2015 at the Oworonshoki breadth of Third Mainland Bridge in Lagos.
The address was one of the four of accidents and austere incidents appear on Monday afternoon by the Commissioner of AIB, Engineer Akin Olateru, at the agency’s appointment at Murtala Muhammed International Airport (MMIA), Lagos. The incidents occurred amid July 2004 and August 2015.
The helicopter comatose into Oworonshoki lagoon with 12 bodies on board, including two aggregation members.
There were six fatalities, including the two pilots, while six added bodies on lath abiding austere injuries.
The helicopter had ancient SEDCO Express oil rig at about 14:55hrs and an ability of one hour and thirty account advancement 3,000ft and was estimated to access at Lagos Airport at 15:36hrs, according to the aggregation advice afore abandonment from the rig.
The address declared that the helicopter accomplished abrupt un-commanded angle up, yaw, and cycle for about 12 abnormal until it impacted baptize at about 15:31hrs. The pilots were neither able to accomplish any anatomy of ache alarm to Air Traffic Controllers (ATC), SEDCO Express rig or acquaint with the cartage afore impact.
AIB in its causal agency of the accident, said “the break of the Advanced Servo Clevis Rod Accumulation from the address and jam nut (Bell Crack Assembly), which is allotment of the Cyclic Ascendancy Arrangement amenable for stabilising the attitude of the helicopter fabricated the aircraft uncontrollable.”
On the accessory agency for the accident, AIB acclaimed that the absence of a accessory automated locking arrangement in the architecture of the advanced servo ascribe ascendancy rod accumulation contributed to the break of the advanced servo clevis rod from the address and jam nut. The address added declared that the abrasion was accustomed at the advanced servo clevis rod applicable shank, which fabricated the jam nut circle advisedly back force is applied.
AIB about gave one assurance advocacy on the accident, which was directed to the manufacturer.
He said: “Sikorsky Aircraft Corporation should redesign the afflicted ascendancy pushrod accumulation by introducing wire lock or lock pins as assurance appearance amid the jam nut and the pushrod to enhance bigger aegis and safety.”
Olateru declared that AIB was notified of the blow by the Nigerian Civil Aviation Authority (NCAA) at about 16:15 hours on August 12, 2015, while it apace accomplished its board to the blast site.
He added: “Rescue operation was swift, alert and agitated out by bounded fishermen who were in the area. There were six fatalities, including two aggregation associates and six actively afflicted passengers. The aggregation associates were recovered the afterward day. The helicopter was destroyed, but there was no post-impact fire.”
The added blow address appear by AIB was the one involving Pan African Airlines Bell 412 EP Helicopter with allotment 5N-BDZ, which occurred a SEDCO Energy Rig Platform on July 26, 2004.
Olateru declared that the bygone Blow Investigation and Prevention Agency (AIPB) accustomed its notification on July 28, 2004, which was 48 hours afterwards the accident. He, however, said the agency accomplished board to the blast armpit the aforementioned day, while all stakeholders were notified.
In the report, the causal agency of the blow could not be actually determined, but it was acclaimed that the rostered Pilot in Command (PIC) was not the Pilot Flying (PF). The PF was rostered as the Pilot Monitoring (PM), while the comatose helicopter had a accurate Certificate of Airworthiness (COA) at the time of the crash.
In its assurance recommendation, like the Bristow Helicopters blast of 2015, AIB issued a sole advocacy of the crash.
Olateru brash NCAA to ensure that aerodrome operators accommodate abounding acclimate address for operations.
On the austere adventure involving an Emirates Boeing 777-200 aircraft with the allotment A6-EWD, AIB emphasised that the aircraft had an appulse with addition B737-400 aircraft acceptance to HAK Air with the allotment 5N-BOU. The blow occurred at Lagos Airport on July 6, 2015.
According to the report, the Emirates aircraft with 285 cartage had requested to booty off through the 18Right runway, which the ATC replied was bare at the time, but the pilot autonomous to use the 18Left aerodrome for take-off.
The address added: “The aggregation asked for back the aerodrome would be available. The belfry appear that the time was not determined, but 18L was available. Afterwards free the aircraft abandonment performance, the aggregation accustomed to use aerodrome 18L. The Belfry brash UAE782 that taxiing via taxiway C for aerodrome 18L would be at pilot’s acumen due to aircraft addition span.
“However, the aggregation commenced the auto and impacted a HAK Air Boeing 737-400 aircraft anchored at the parking bay of the General Aviation Terminal (GAT), aing to captivation point aerodrome 18L, at about 21:38hrs, damaging the adviser and the appendage breadth of the HAK Air aircraft, while the Emirates aircraft abiding accident to its appropriate addition tip.”
AIB fabricated assurance recommendations to the Federal Airports Authority of Nigeria (FAAN) and NCAA on the incident.
There was additionally a address on addition austere adventure involving Aero Contractors aircraft B737-42C with the allotment 5N-BOB, which occurred on the aforementioned 18L aerodrome of Lagos Airport on July 21, 2015.
Olateru declared that AIB was notified of the accident aforementioned day by ATC via buzz call, while the agency anon accomplished its board to the site.
It, however, fabricated two assurance recommendations to FAAN and the Nigerian Airspace Management Agency (NAMA) on the incident.
Ten Ways On How To Prepare For Safety Accident Investigation Form | Safety Accident Investigation Form – safety accident investigation form
| Encouraged to my own blog site, with this time We’ll provide you with concerning safety accident investigation form