Airworthiness Directive · Amendment 39-14743 · McDonnell Douglas Model DC-9-14, DC-9-15, and DC-9-15F Airplanes; Model DC-9-21 Airplanes; Model DC-9-30 Series Airplanes; Model DC-9-41 Airplanes; and Model DC-9-51 Airplanes
McDonnell Douglas Model DC-9-14, DC-9-15, and DC-9-15F Airplanes; Model DC-9-21 Airplanes; Model DC-9-30 Series Airplanes; Model DC-9-41 Airplanes; and Model DC-9-51 Airplanes
This AD applies to the McDonnell Douglas airplanes identified in Table 1 of this AD, certificated in any category, as identified in Boeing Alert Service Bulletin DC9-24A190, Revision 2, dated October 12, 2004.
| Model |
|---|
| (1) DC-9-14, DC-9-15, and DC-9-15F airplanes. |
| (2) DC-9-21 airplanes. |
| (3) DC-9-31, DC-9-32, DC-9-32 (VC-9C), DC-9-32F, DC-9-32F (C-9A, C-9B), DC-9-33F, DC-9-34, and DC-9-34F airplanes. |
| (4) DC-9-41 airplanes. |
| (5) DC-9-51 airplanes. |
The FAA is superseding an existing airworthiness directive (AD), which applies to certain McDonnell Douglas Model DC-9-10, DC-9- 20, DC-9-30, DC-9-40, and DC-9-50 series airplanes. That AD currently requires a one-time inspection at a certain disconnect panel in the left forward cargo compartment to find contamination of electrical connectors and to determine if a dripshield is installed over the disconnect panel, and corrective actions if necessary. This new AD revises the applicability of the existing AD by removing certain airplanes and adding others. This AD results from a report of electrical arcing that resulted in a fire. We are issuing this AD to prevent contamination of certain electrical connectors, which could cause electrical arcing and consequent fire on 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 airplanes equipped with forward lavatories, as listed in Boeing Alert Service Bulletin DC9-24A190, Revision 01, dated November 21, 2001: Within 18 months after March 7, 2003 (the effective date of AD 2003-03-08), perform a one-time general visual inspection of the disconnect panel at station Y=237.000 in the left forward cargo compartment to find evidence of contamination (e.g., staining or corrosion) of electrical connectors by blue water, and to determine if a dripshield is installed over the disconnect panel. Do this inspection according to the Accomplishment Instructions of Boeing Alert Service Bulletin DC9-24A190, Revision 01, excluding Evaluation Form, dated November 21, 2001.
(1) If no evidence of contamination of electrical connectors is found, and a dripshield is installed, no further action is required by this AD.
(2) If any evidence of contamination of any electrical connector is found: Before further flight, remove each affected connector, and install a new or serviceable connector according to the service bulletin.
(3) If no dripshield is installed over the disconnect panel: Before further flight, install a dripshield according to the service bulletin.
Inspections and corrective actions accomplished before March 7, 2003, in accordance with the Accomplishment Instructions of Boeing Alert Service Bulletin DC9-24A190, dated July 31, 2001, are considered acceptable for compliance with the corresponding actions specified in paragraph (f) of this AD.
For airplanes equipped with forward lavatories, other than those identified in paragraph (f) of this AD: Within 18 months after the effective date of this AD, do the one-time general visual inspection and applicable corrective actions specified in paragraph (f) of this AD, in accordance with Boeing Alert Service Bulletin DC9-24A190, Revision 2, dated October 12, 2004. The applicable corrective actions must be done before further flight.
(i) For airplanes equipped with forward lavatories, as identified in Boeing Alert Service Bulletin DC9-24A190, Revision 2, dated October 12, 2004: Accomplishing the actions specified in paragraph (f) of this AD before the effective date of this AD is acceptable for compliance with the requirements of paragraph (h) of this AD.
The aircraft, engines and makers this AD names, by the model designations in its text. A model listed here may still be outside the AD's serial ranges.
