Tillögur í öryggisátt Síða 9

Afgreiðsla

Boeing plans to release Boeing Alert Service Bulletin 757-SB-27A0154 on June 25 2016. In addition the FAA has issued Safety Recommendation 15.115, a Boeing 757 airplane level safety issue, mandating evaluation of the spoiler actuator's blocking and thermal relief valve housing failure to determine appropriate corrective action.

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The FAA has issued Safety Recommendation 15.116, gathering and reviewing compliance data, including hazard assessments, for each type of Title 14, Code of Federal Regulations (14 CFR) Part 25 airplane operating under part 121. The FAA will be addressing Safety Recommendation 15.116 for U.S.-manufactured aircraft.

Afgreiðsla

The FAA has issued Safety Recommendation 15.115, a Boeing 757 airplane level safety issue, mandating evaluation of the spoiler actuator's blocking and thermal relief valve housing failure to determine appropriate corrective action.

Update 31.01.2017:

The FAA has reviewed and determined that the latent failure of the spoiler power control unit Blocking and Thermal Relief Valve (BTRV) housing does manifest itself when the hydraulic system it is attached to fails. The failure causes an uncommanded extension of the spoiler panel, known as spoiler panel float. The result of multiple spoiler panel floating can lead to the loss of the airplane. The FAA's Aircraft Certification Service has determined this is a safety issue and the FAA is in the process of publishing an airworthiness directive to address it.

Updated 6.10.2017:

The FAA has issued Airworthiness Directive 2017-04-07, mandating that within 51 months after January 23 2017, for all Boeing 757-200, -200PF, -200CB, and -300 series airplanes, certificated in any category, each spoiler power control unit (PCU) must be replaced with a new or changed PCU at spoiler positions 2, 3, and 4 on the left wing, and spoiler positions 9, 10, and 11 on the right wing, in accordance with the Accomplishment Instructions of Boeing Alert Service Bulletin 757-27A0154, dated July 22, 2016. This concludes the above safety recommendation issued by the Icelandic Transportation Safety Board on August 13th, 2015.

Afgreiðsla

The FAA has issued Safety Recommendation 15.116, gathering and reviewing compliance data, including hazard assessments, for each type of Title 14, Code of Federal Regulations (14 CFR) Part 25 airplane operating under part 121. The FAA will be addressing Safety Recommendation 15.116 for U.S.-manufactured aircraft. Furthermore, the FAA recommended to the ITSB to provide a similar recommendation to foreign aviation authorities for each State of design. The board of ITSB approved on a board meeting held on January 15th, 2016, to contact other states of designs of aircraft of similar spoiler design and extend the recommendation as needed.

Update: 31.01.2017:

The FAA has reviewed the design, manufacturing, and service information and determined the Boeing Model 757 failed BTRV housing was under-designed in that it had insufficient fatigue life. The reason for this was found to be a design error that led to a premature failure. The valve itself was designed by a third party, Moog, which reported that the valve is used only on the Boeing Model 757 series airplanes. Therefore this under-designed part is not on any other transport airplanes. Additionally, a quary of the FAA Service Difficulty Report (SDR) database did not reveal any other spoiler issue associated with the blocking/thermal relief valves in the past fifteen years on any transport airplanes. The FAA considers its action to Safety Recommendation 15.116 completed.

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SCAC has developed an internal regulation applicable to their flight test center for Sukhoi Civil Aircraft JSC Control Service. This regulation is under evaluation at the Russian National Aviation Authority and will be adopted when approved to conduct flight test activity.

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SCAC has improved its flight safety approach is such a way that all test pilots and test flight engineers underwent additional training concerning door slides arming operation.

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SCAC clarify that the AFM approved by lAC AR and EASA for RRJ-95 aircraft contains all the instructions related to the engine thrust setting and also to the activation of the go-around function in accordance with the Certification Basis (CB) para. 25.125; 15.121 and 25.119 requirements. Both TQL's go-around position setting instructions are in the part of the Standard Operational Procedures (SOP) which are described in the Flight Crew Operating Manual (FCOM).

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Isavia:

• Í því skyni að styðja við tímanlega boðun voru búnar til æfingar og æfingaáætlun þar sem ætlast er til að stutt boðunar-æfing fari fram a.m.k. vikulega (SR15005,SR19018).
• Í skýrslu RHA (Rannsóknarhópur atvika) um atvikið kom fram að boðunarlisti var ekki á þeim stað sem viðkomandi flugumferðarstjóri gerði ráð fyrir. Í dag er virkt, daglegt, eftirlit til að tryggja að gátlista-mappa sé á réttum stað og að innihald hennar sé eins og það á að vera (SR15005,SR19018).
• Neyðargátlistar flugturnsins í Keflavík voru uppfærðir og samræmdir við gátlista annarra flugturna.
• Sérstök áhersla var lögð á boðun í síþjálfun ársins 2014 og neyðarviðbrögð eru árlega á dagskrá síþjálfunar.

Afgreiðsla

Isavia:

• Til staðar er sérregla SR19006 Noise abatement procedures, þar er starfsmönnum bent á þær reglur sem auglýstar eru í AIP.
• Í framhaldi af útkomu skýrslunnar var eftirfarandi texti settur inn á vaktaskiptablað í flugturninum í Keflavík
  • „Allt árið um kring: Hvorki snertilendingar né lág aðflug verða samþykkt fyrir braut 11/29 milli 22:00 og 07:00“.
• Skýrslan kynnt á varðstjórafundi og umræða tekinn um mikilvægi þess að fara eftir þeim tilmælum sem að ofan er getið.

Afgreiðsla

Isavia hefur gefið út sérstakt verklag VR700 10-4 Prófunarflug á Keflavíkurflugvelli.