Airworthiness Directive · Amendment 39-14011 · McDonnell Douglas Model MD-90-30 Airplanes
McDonnell Douglas Model MD-90-30 Airplanes
This AD applies to all Model MD-90-30 airplanes, certificated in any category.
The FAA is adopting a new airworthiness directive (AD) for all McDonnell Douglas Model MD-90-30 airplanes. This AD requires replacing, with improved parts, certain existing fluorescent light lamp holders located in the ceiling panels and life raft ceiling support housings, and behind the overhead stowage compartments in the main cabin. This AD is prompted by reports of failure of fluorescent light lamp holders in the main cabin. We are issuing this AD to prevent chafing of the lamp holder power wire against the mounting bracket, and moisture intrusion into the lamp holders, which could result in failure of the lamp holders and consequent smoke and fire in the airplane cabin.
You are responsible for having the actions required by this AD performed within the compliance times specified, unless the actions have already been done.
Within 18 months after the effective date of this AD, replace existing fluorescent light lamp holders manufactured by Page Aerospace Limited, part numbers (P/Ns) C779-02-001 and C779-09-001, with improved parts manufactured by Bruce Industries Incorporated, P/Ns BV04055-01-12 and BV04055N-01-12, as specified in Table 1 of this AD.
| Replace lamp holders in these locations— | In accordance with this service information— | Which refers to this service information as an additional source of replacement instructions— |
|---|---|---|
| (1) Ceiling panels and life raft ceiling support housings | Boeing Alert Service Bulletin MD90-33A012, Revision 3, dated January 14, 2004 | C & D Aerospace Alert Service Bulletin 59406XX-25A01; currently at Revision 4, dated July 31, 2003. |
| (2) Sidewall behind the overhead stowage compartments in the main cabin | Boeing Alert Service Bulletin MD90-33A013, dated November 29, 2001 | C & D Aerospace Alert Service Bulletin 51310XX-25A01; currently at Revision 5, dated March 30, 2004. |
As of the effective date of this AD, no person may install a fluorescent light lamp holder manufactured by Page Aerospace Limited and having P/N C779-02-001 or C779-09-001, in the locations specified in this AD, on any airplane.
Replacements accomplished before the effective date of this AD per the Accomplishment Instructions of Boeing Alert Service Bulletin MD90-33A012, dated March 28, 2001; Revision 01, dated September 17, 2001; or Revision 02, dated January 17, 2002; are considered acceptable for compliance with paragraph (f) of this AD.
