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Talstöðvarskanna í flugvallaþjónustutæki
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RNSA beinir því til Isavia að setja talstöðvarskanna í öll flugvallarþjónustutæki, sem notuð eru reglulega við vinnu á flugbrautum, þar sem mögulegt er að vera með hlustun á bæði turn- og grundbylgju.
Afgreiðsla
Verklag varðandi tímasetningu heimilda
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RNSA beinir því til Isavia og Isavia ANS að meta verklag varðandi tímasetningu heimilda.
Afgreiðsla
Yfirfara afísingarverklag
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RNSA beinir því til afgreiðsluaðila afísingar á Akureyrarflugvelli, að yfirfara verklag við undirbúning afísingar, til að koma í veg fyrir að afísingarvökvi sé notaður í upplausn þar sem hætta er á að hann frjósi. Æskilegt er að verklagið sé yfirfarið fyrir allar starfsstöðvar afgreiðsluaðila afísingar þar sem afísing fer fram.
Afgreiðsla
Notkunarmörk afísingarvökva
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RNSA beinir því til Norlandair, að fara yfir með flugmönnum og afgreiðslumönnum notkunarmörk mismunandi upplausna afísingarvökva, bæði er varðar hreinsun (de-icing) og vörn (anti-icing).
Afgreiðsla
Norlandair hefur gefið út Safety Information letter 2025-2, De-/anti-icing Beechcraft King Air aircraft using Type II fluid, þar sem tekið er á efni tillögunnar.
Verklag við lendingar á jöklum og í snjó
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RNSA beinir því til Norðurflugs að setja í handbækur sínar verklagsreglur varðandi lendingar á jöklum og á snjó, þegar hætta er á að flugmenn geti misst viðmið á jörðu.
Afgreiðsla
Norðurflug hefur innleitt tillöguna á eftirfarandi hátt:
- Hluti í handbók 8.1.2.2
- Hluti af OPC formi
- Hluti af þjálfun fyrir þyrlu skíðun þar sem einkum reynir á þetta og í kennsluefni er ítarlega farið yfir „whiteout“
- Hluti af áhættumati sem gert er vegna nýrrar reglugerðar Ferðamálastofu
Change of door design
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The Icelandic Transportation Safety Board (ITSB) recommends to Precision Conversions that it reviews 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 FAA FAR and EASA CS, subchapters 25.301(a) and 25.303.
Afgreiðsla
Precision Conversions has modified the structural design of the main cargo door to support the intended 45 knots maximum wind operation limit in compliance with FAA FAR and EASA CS, subchapters 25.301(a) and 25.303.
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.
FAA mandate of design change to cargo door due to maximum wind operation loading
Tillaga í öryggisátt
The Icelandic Transportation Safety Board (ITSB) recommends to the FAA that it requires the STC holder of FAA STC #ST01529SE 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 FAA FAR subchapters 25.301(a) and 25.303.
Afgreiðsla
FAA Safety Recommendation 14.055 was assigned to the FAA's Aircraft Certification Service, Transport Airplane Directorate on April 15, 2014, requiring Precision Conversions to modify the structural design of the main cargo door to support the intended 45 knots maximum wind operation limit in compliance with FAA FAR and EASA CS, subchapters 25.301(a) and 25.303.
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.
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.
Fleet implement of design change
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The Icelandic Transportation Safety Board (ITSB) recommends to Boeing, to issue the planned service bulletin 757-SB57A0154 to support fleet wide replacement of the Blocking and Thermal Relief Valve Housing in co-operation with the actuator‘s manufacturer.
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.