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Endurskoðun verklags vegna tilkynninga til RNSA
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RNSA beinir því til Blue West Helicopter að fyrirtækið enduskoði verklag sitt til að tryggja að tilkynningar flugslysa og alvarlegra flugatvika á loftförum þess á Íslandi berist án ástæðulausrar tafar til Rannsóknarnefndar samgönguslysa.
Afgreiðsla
Óafgreitt af Blue West Helicopters.
Endurskoðun fjarskiptatíðna
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RNSA leggur til að Samgöngustofa endurskoði núgildandi fyrirkomulag Austursvæðis og Sandskeiðs með tilliti til fjarskiptatíðna.
Afgreiðsla
Samgöngustofa setti af stað verkefni um endurskipulagningu svæða og sjónflugsumferðar fyrir austan BIRK. Reglur um breytta tilhögun sjónflugs í Austursvæði og austur af BIRK tóku gildi 1. júní 2016. Hin breytta tilhögun er byggð á hættugreiningu og áhættumati sem unnið var af Isavia að beiðni SGS. Flugumferðarstjórar sem og notendur loftrýmis (m.a. einkaflugmenn, prófdómarar, þyrluflugmenn) tóku þátt í þeirri vinnu og SGS stýrði síðan úrvinnslu lokatillagna, sem aftur voru rýndar af SGS og tryggði SGS að sömu aðilar kæmu ekki að úrvinnslu tillagna og rýni.
Eftirfarandi breytingar má finna í AIP, sjá hér.
Endurskoðun á notkun á olíuleiðslum
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RNSA beinir því til hönnuðar I.C.P. Savannah S að endurskoða notkun á rifluðu málmrörunum í olíukerfi [Rotax 912] hreyfilsins.
Afgreiðsla
EASA mandate of design change to cargo door due to maximum wind operation loading
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The Icelandic Transportation Safety Board (ITSB) recommends to EASA that it require the STC holder of EASA STC EASA.IM.A.S.01423 to review the structural design of the main cargo door with respect to the 45 knots maximum wind operation loading and make the necessary design changes in order to meet the requirements of EASA CS, subchapters 25.301(a) and 25.303.
Afgreiðsla
The STC holder addressed through service bulletin (SB) PC-757-52-0018 a redesign of the cargo door, replacing the aluminum rods of the door with steel rods.
In addition, for both configurations, pre and post SB PC-757-52-0018, the following wind/gust limitations have been established and incorporated in the Aircraft Maintenance Manual and Operations Manual supplements:
- 45 knots up to the door canopy position, 0 (zero) knots beyond the door canopy position, for configuration pre SB PC-757-52-0018 (aluminum rods).
- 45 knots up to the door canopy position, 25 knots beyond the door canopy position, for configuration post SB PC-757-52-0018 (steel rods).
These design changes and wind/gust limitations were mandated by the FAA AD 2016-04-24, which has been adopted by EASA.
Design of pulley fastener locking
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The Icelandic Transportation Safety Board (ITSB) recommends to Technify Motors to reconsider the design of the crankshaft belt pulley fastener P/N 05-7223-K000501 in order to prevent loosening of the fastener.
Afgreiðsla
Technify Motors reconsidered the design of the crankshaft belt pulley fastener P/N 05- 7223-K000501 in order to prevent loosening of the fastener and provided a report to EASA. In the report different options of locking mechanism were considered. The preferred solution was to mark the bolt with torque seal and decided to implement it. This way, the security of the correct sit of the crankshaft main bolt could be checked during inspections, to see if it was loosening over time.
Design change to spoiler actuator
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The Icelandic Transportation Safety Board (ITSB) recommends to Moog, in co-operation with the airplane’s manufacturer, set up a program to support fleet wide replacement of the blocking and thermal relief valve housing with the fatigue improved unit made from stainless steel.
Afgreiðsla
Moog has redesigned the Blocking and Thermal Relief Valve Housing with thicker material section and more radius in the area of the fracture surface. The redesigned Blocking and Thermal Relief Valve Housing is made from stainless steel instead of aluminum. This results in better fatigue performance of the Blocking and Thermal Relief Valve Housing. 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.
Critical pulley fastener notification
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The Icelandic Transportation Safety Board (ITSB) recommends to Technify Motors to issue a service letter to operators, advising of this incident and remind them never to loosen the belt pulley fastener in the crankshaft, due to its critical torque value.
Afgreiðsla
Technify Motors added several notes to repair procedures (RM-02-02) during which the mechanic might have the idea to demount the pulley and informed all registered users regarding the new versions.
Coupling the frequencies together to avoid multiple transmissions at the same time
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In case a single ATCO monitoring multiple frequencies in the Keflavík Airport Tower, evaluate the feasibility of temporary coupling the frequencies together to avoid multiple transmissions at the same time.
Afgreiðsla
Conform to the required specifications and standards
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Take the necessary quality assurance steps to ensure that connecting rod and the small end bushings conform to the required specifications and standards.
Afgreiðsla
Not actioned by Continental.
Change to emergency slide system
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In conjunction with the manufacturer, ensure that necessary changes are made to the emergency escape slide design of RRJ-95B aircraft EASA certified under type certificate EASA.IM.A.176 to meet the maximum wind requirements of EASA CS-25.810(iv)
Afgreiðsla
EASA has contacted the manufacturer and the Interstate Aviation Committee-AR in order to review the compliance of the slides with the certification requirements.