AD 77-08-07
Applicability
| Type | Manufacturer | Model | Details |
|---|---|---|---|
| aircraft | Airbus Helicopters Deutschland GmbH | BO-105A | Airworthiness Directives; Messerschmitt-Bolkow-Blohm (MBB): Model BO-105A and BO-105C Helicopters |
| aircraft | Airbus Helicopters Deutschland GmbH | BO-105C | Airworthiness Directives; Messerschmitt-Bolkow-Blohm (MBB): Model BO-105A and BO-105C Helicopters |
Unsafe Condition
The inability to release an external load due to potential failure of wire bundle 22VB (P/N 105-98327) and associated connector plug 5MDA in the external load hook assembly (P/N 105-80322).
AI-generated summary from the source AD text. Verify against the official source before acting.
Required Actions
Within 5 hours time in service after the AD's effective date, either install an operating limitation placard prohibiting external load operations or replace wire bundle 22VB with P/N 105-98326 and modify connector plug 5MDA per MBB Service Bulletin No. 80-21. The placard may be removed after completing the wiring modification.
AI-generated summary from the source AD text. Verify against the official source before acting.
Compliance Time
Within the next 5 hours time in service after the effective date of this AD
AI-generated summary from the source AD text. Verify against the official source before acting.
Affected Aircraft
Messerschmitt-Bolkow-Blohm (MBB) Model BO-105A and BO-105C helicopters, serial numbers S101 through S200, with external load hook assembly P/N 105-80322
AI-generated summary from the source AD text. Verify against the official source before acting.
Source: Official FAA Source ↗
Retrieved: Apr 8, 2026
Rights: U.S. Government Public Domain
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