AD 2012-23-12
Applicability
| Type | Manufacturer | Model | Details |
|---|---|---|---|
| engine | Turbomeca | S | Airworthiness Directives; Turbomeca S.A. Turboshaft Engines |
Unsafe Condition
A 'red disk' plug, adapted for bench testing, was installed on the FCU and released for service operation, leading to an in-service high pressure leak event (at the fuel pump outlet) due to cracking of the plug. This leak could lead to in-flight flame-out and/or possibly a fire.
AI-generated summary from the source AD text. Verify against the official source before acting.
Required Actions
Perform a one-time inspection of the plug installed in the FCU 3-way union, part number 9 932 30 706 0. If the plug is unpainted, verify it is torqued to between 1.3 and 1.5 daN.m. If the plug has any red paint, replace it with a serviceable plug and torque it to between 1.3 and 1.5 daN.m before further flight.
AI-generated summary from the source AD text. Verify against the official source before acting.
Compliance Time
Within 100 operating hours from the effective date of this AD.
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Affected Aircraft
Turbomeca S.A. models Arriel 1E2, 1S, and 1S1 turboshaft engines with FCUs manufactured, repaired, or overhauled on or before March 31, 2008.
AI-generated summary from the source AD text. Verify against the official source before acting.
Source: Official FAA Source ↗
Retrieved: Apr 6, 2026
Rights: U.S. Government Public Domain
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