Airworthiness Directive · Amendment 39-14616 · Boeing Model 767 Airplanes
Boeing Model 767 Airplanes
Superseded. A later AD replaced this one: AD 2007-24-08. Comply with the one in force.
This AD applies to all Boeing Model 767-200, -300, -300F, and -400ER series airplanes, certificated in any category.
The FAA is adopting a new airworthiness directive (AD) for all Boeing Model 767 airplanes. This AD requires repetitive measurements of the rudder and elevator freeplay, repetitive lubrication of rudder and elevator components, and related investigative/corrective actions if necessary. This AD results from reports of freeplay-induced vibration of the rudder and the elevator. The potential for vibration of the control surface should be avoided because the point of transition from vibration to divergent flutter is unknown. We are issuing this AD to prevent excessive vibration of the airframe during flight, which could result in loss of control of the airplane.
You are responsible for having the actions required by this AD performed within the compliance times specified, unless the actions have already been done.
The term “service bulletin,” as used in this AD, means the Accomplishment Instructions of the following service bulletins, as applicable:
(1) For Model 767-200, -300, and -300F series airplanes: Boeing Special Attention Service Bulletin 767-27-0197, dated October 27, 2005; and
(2) For Model 767-400ER series airplanes: Boeing Special Attention Service Bulletin 767-27-0198, dated October 27, 2005.
Within 18 months after the effective date of this AD; or within 36 months since the date of issuance of the original standard airworthiness certificate or the date of issuance of the original export certificate of airworthiness; whichever occurs later: Measure the rudder and elevator freeplay. Repeat the measurement thereafter at intervals not to exceed 12,000 flight hours or 36 months, whichever occurs first. Do all actions required by this paragraph in accordance with the applicable service bulletin.
If any measurement found in paragraph (g) of this AD exceeds any applicable limit specified in the service bulletin: Before further flight, do the applicable related investigative and corrective actions in accordance with the applicable service bulletin.
(i) Within 9 months after the effective date of this AD; or within 9 months since the date of issuance of the original standard airworthiness certificate or the date of issuance of the original export certificate of airworthiness; whichever occurs later: Lubricate the rudder and elevator components specified in the service bulletin. Repeat the lubrication thereafter at the applicable interval in paragraph (i)(1) or (i)(2) of this AD. Do all actions required by this paragraph in accordance with the applicable service bulletin.
(1) For airplanes on which BMS 3-33 grease is not already in use prior to the time the lubrication task is being accomplished: At intervals not to exceed 3,000 flight hours or 9 months, whichever occurs first.
(2) For airplanes on which BMS 3-33 grease is already in use prior to the time the lubrication task is being accomplished: At intervals not to exceed 6,000 flight hours or 18 months, whichever occurs first.
If a freeplay measurement required by paragraph (g) of this AD and a lubrication cycle required by paragraph (i) of this AD are due at the same time or will be accomplished during the same maintenance visit, the freeplay measurement and applicable related investigative and corrective actions must be done before the lubrication is accomplished.
Although the service bulletins referenced in this AD specify to submit certain information to the manufacturer, this AD does not include that requirement.
