Air Conditioning – Vapor Cycle Air Conditioning System – Inspection
- Published
- Effective
AI-generated summary of the official EASA document. Verify against the PDF before acting.
What to do
Operators must perform a play check inspection of the louver box assembly before the first flight of each day starting from 6 August 2026. If any play is found, they must inspect the air conditioning system and contact Airbus Helicopters for approved corrective actions, which must be completed within the specified compliance time. Installation of the affected part is permitted only if inspected before the next flight.
Summary
EASA Airworthiness Directive 2026-0152 is an airworthiness directive addressing the vapor cycle air conditioning system on MBB-BK117 C-1 helicopters. It mandates recurring inspections of the louver box assembly, part number 117-820014, due to a reported in-flight detachment caused by incorrect installation. The directive applies to all serial numbers of the affected helicopter model and aims to prevent potential in-flight loss of parts and reduced helicopter control.
What changed
This new airworthiness directive introduces a recurring inspection requirement for the louver box assembly of the vapor cycle air conditioning system on MBB-BK117 C-1 helicopters. It requires a play check before the first flight of each day and corrective actions if any play is detected. The directive also allows installation of the affected part only if inspected before the next flight.
Why it matters
This directive is critical for operators and maintenance organizations to ensure the safety and airworthiness of MBB-BK117 C-1 helicopters. Failure to detect and correct the installation issue could lead to in-flight part detachment, risking damage to main or tail rotors and compromising flight control. Compliance helps prevent accidents and ensures regulatory adherence.
More for Airbus Helicopters MBB-BK 117
All 63- EASA PAD 26-121Equipment / Furnishings – System Interface Unit – ReplacementOct 8, 2026
- EASA AD 2026-0188Instruments – Warning Unit Emergency Off Switches – Operational CheckSep 30, 2026
- EASA PAD 26-111Landing Gear – Emergency Flotation System Adhesive Label – RemovalSep 22, 2026
- EASA AD 2026-0151Main Rotor Drive – Rotor Hub-Shaft – InspectionJul 30, 2026
- EASA AD 2026-0127Main Rotor – Swashplate – InspectionJun 30, 2026
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New ADs and bulletins for Airbus Helicopters MBB-BK 117 and MBB-BK117 C-1, summarized like this page, every Monday.