Airworthiness Directive · Amendment 39-15989 · Boeing Model 767 Airplanes
Boeing Model 767 Airplanes
This AD applies to all Boeing Model 767-200, -300, -300F, and -400ER series airplanes, certificated in any category.
We are adopting a new airworthiness directive (AD) for all Boeing Model 767 airplanes. This AD requires installing an automatic shutoff system for the auxiliary fuel tank override/jettison fuel pumps (also referred to as center tank fuel pumps in the airplane flight manual (AFM)), revising the AFM to advise the flightcrew of certain operating restrictions for airplanes equipped with an automatic auxiliary fuel tank pump shutoff control, and, for certain airplanes, installing a placard to alert the flightcrew of certain fuel usage restrictions. This AD provides optional terminating actions for certain requirements. This AD results from a design review of the fuel tank systems. We are issuing this AD to prevent an overheat condition outside the center tank fuel pump explosion-resistance area that is open to the pump inlet, which could cause an ignition source for the fuel vapors in the fuel tank and result in fuel tank explosions and consequent loss 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.
For Model 767 airplanes with line numbers 1 through 940 inclusive: Within 36 months after the effective date of this AD, install an automatic shutoff system for the center tank fuel pump, in accordance with Boeing Service Bulletin 767-28A0083, Revision 2, dated February 12, 2009 (for Model 767-200, -300, and -300F airplanes); or Boeing Service Bulletin 767-28A0084, Revision 1, dated April 26, 2007 (for Model 767-400ER airplanes); as applicable.
Installing an automatic shutoff system is also acceptable for compliance with the requirements of paragraph (f) of this AD if done before the effective date of this AD in accordance with service information identified in Table 1 of this AD.
| Boeing service information | Revision level | Date |
|---|---|---|
| Alert Service Bulletin 767-28A0083 | Original | May 3, 2006. |
| Alert Service Bulletin 767-28A0084 | Original | May 3, 2006. |
| Service Bulletin 767-28A0083 | 1 | April 26, 2007. |
For Model 767 airplanes with line numbers 1 through 940 inclusive: Concurrently with accomplishing the actions required by paragraph (f) of this AD, revise Section 1, Certificate Limitations, of the Boeing 767 AFM to include the following:
“CENTER TANK FUEL PUMPS
Center tank fuel pump switches must not be “ON” unless personnel are available in the flight deck to monitor low PRESS lights.
For ground operations prior to engine start: The center tank fuel pump switches must not be positioned ON unless the center tank contains usable fuel. With center tank fuel pump switches ON, verify both center tank fuel pump low PRESS lights are illuminated and EICAS CTR L FUEL PUMP and CTR R FUEL PUMP messages are displayed.
For ground operations after engine start and flight operations: The center tank fuel pump switch must be selected OFF when the respective CTR L FUEL PUMP or CTR R FUEL PUMP message displays. Both center tank fuel pump switches must be selected OFF when either the CTR L FUEL PUMP or CTR R FUEL PUMP message displays if the center tank is empty. During cruise flight, both center tank pump switches may be reselected ON whenever center tank usable fuel is indicated.
DE-FUELING AND FUEL TRANSFER
When transferring fuel or de-fueling center or main wing tanks, the fuel pump low PRESS lights must be monitored and the respective fuel pump switches positioned to “OFF” at the first indication of low pressure. Prior to transferring fuel or de-fueling, conduct a lamp test of the respective fuel pump low PRESS lights.
Intentional dry running of a center tank fuel pump (CTR L FUEL PUMP or CTR R FUEL PUMP message displayed on EICAS) is prohibited.
Do not reset a tripped fuel pump or fuel pump control circuit breaker.”
This may be done by inserting a copy of this AD into the AFM.
Note 1: When statements identical to those in paragraph (h) of this AD have been included in the general revisions of the AFM, the general revisions may be inserted into the AFM, and the copy of this AD may be removed from the AFM.
(i) For Model 767-200, -300, or -300F airplanes that meet the conditions of paragraphs (i)(1) and (i)(2) of this AD: Within 30 days after the effective date of this AD, install a placard in the flight deck adjacent to each pilot's primary flight display, to alert the flightcrew to follow the procedures required by paragraph (b) of AD 2001-15-08. The placard must include the following statement: “AD 2001-15-08 fuel usage restrictions required.” Alternative placard wording may be used if approved by an appropriate FAA Principal Operations Inspector. Alternative placard methods and alternative methods of mixed fleet configuration control may be used if submitted for review in accordance with the procedures specified in paragraph (m) of this AD.
(1) The airplane is operated in a fleet of airplanes on which the actions specified in paragraph (f) of this AD have been done on at least one of the fleet's airplanes.
(2) The actions specified in paragraph (i) of AD 2001-15-08 (installation of modified center tank override and override/jettison fuel pumps that are not subject to the unsafe condition described in this AD) or paragraph (f) of this AD have not been done on the airplane.
Note 2: If the actions specified in paragraph (f) of this AD have been done on all airplanes operated within an operator's fleet, or if operation according to the fuel usage restrictions of AD 2001-15-08 is maintained until automatic shutoff systems are installed on all airplanes in an operator's fleet: No placard is necessary before removal of the wet shutoff restrictions of AD 2001-15-08.
Deactivation of the center fuel tanks, in accordance with Boeing Alert Service Bulletin 767-28A0050, dated December 18, 1997; or Boeing Service Bulletin 767-28A0050, Revision 1, dated December 22, 1999; terminates the requirements of paragraphs (f), (h), and (i) of this AD, except as provided by paragraph (k) of this AD.
For any airplane on which the center fuel tank is reactivated, the center fuel tank must be reactivated in accordance with a method approved by the Manager, Seattle Aircraft Certification Office (ACO), FAA. For any airplane on which the center fuel tank is reactivated, the requirements of paragraphs (f), (h), and (i) of this AD must be done before further flight following the reactivation, or within 36 months after the effective date of this AD, whichever occurs later. For a reactivation method to be approved, the reactivation method must meet the certification basis of the airplane, and the approval must specifically reference this AD.
For airplanes that have automatic shutoff systems installed: Accomplishing paragraphs (f) and (i) of this AD terminates the requirements of paragraphs (b) and (c) of AD 2001-15-08.
