AD 2007-11-14
Applicability
| Type | Manufacturer | Model | Details |
|---|---|---|---|
| aircraft | Embraer | Various | Airworthiness Directives; Empresa Brasileira de Aeronautica S.A. (EMBRAER) Model EMB-135BJ Airplanes |
| aircraft | Aviat | Various | Airworthiness Directives; Empresa Brasileira de Aeronautica S.A. (EMBRAER) Model EMB-135BJ Airplanes |
Unsafe Condition
Both fuel level control units (LCU) and their associated harnesses throughout the aircraft do not comply with the requirements of proper segregation, in order to preclude a possible ignition source in the vicinity of the fuel tanks, as required by SFAR 88 regulations.
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Required Actions
Replace LCU 1 and LCU 2 with new ones bearing part number 367-340-001, rework the LCU 1 and LCU 2 supports, rework and segregate electrical harnesses W102S and W102P, replace harnesses W164 and W221, and route electrical harnesses W1614 and W1620, segregating W1614, according to EMBRAER Service Bulletin 145LEG-28-0020.
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Compliance Time
Within 48 months or 5,000 flight hours after the effective date of this AD, whichever occurs first.
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Affected Aircraft
EMBRAER Model EMB-135BJ airplanes, certificated in any category, serial numbers 145484, 145540, 145555, 145706, and 145711.
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Source: Official FAA Source ↗
Retrieved: Apr 4, 2026
Rights: U.S. Government Public Domain
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