AD 2004-07-04

final rule
Data completeness: 70%

Airworthiness Directives; McDonnell Douglas Model DC-9-14, DC-9-15, DC-9-15F, 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; and Model DC-9-21, DC-9-41, and DC-9-51 Series Airplanes

AD Number
2004-07-04
Status
final_rule
Effective Date
Product Category
aircraft
Docket
Docket No. 2003-NM-58-AD
FR Citation
69 FR 16783

Applicability

TypeManufacturerModelDetails
aircraft McDonnell Douglas DC-9-14 Airworthiness Directives; McDonnell Douglas Model DC-9-14, DC-9-15, DC-9-15F, 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; and Model DC-9-21, DC-9-41, and DC-9-51 Series Airplanes

Unsafe Condition

Overheating of the ballast transformers due to aging fluorescent tubes causing a higher power demand, which could result in smoke in the cockpit.

AI-generated summary from the source AD text. Verify against the official source before acting.

Required Actions

Replace the transformer ballast assembly in the pilot's console with a new, improved ballast assembly. An optional method for accomplishing the requirements is also provided.

AI-generated summary from the source AD text. Verify against the official source before acting.

Affected Aircraft

McDonnell Douglas Model DC-9 series airplanes, including DC-9-14, DC-9-15, DC-9-15F, 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, DC-9-34F, DC-9-21, DC-9-41, and DC-9-51 series airplanes.

AI-generated summary from the source AD text. Verify against the official source before acting.

Source: Official FAA Source ↗

Retrieved: Apr 6, 2026

Rights: U.S. Government Public Domain

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View Official Source ↗ Find More ADs for McDonnell Douglas DC-9-14

Related Airworthiness Directives

2010-23-10 Recurring

final rule

Airworthiness Directives; McDonnell Douglas Corporation Model DC-9-14, DC-9-15, and DC-9-15F Airplanes; and Model DC-9-20, DC-9-30, DC-9-40, and DC-9-50 Series Airplanes

Unsafe Condition: which could cause a possible fuel leak, damage to the wing skin, and structural failure of the upper cap, and result in reduced structural integrity of the airplane.

Effective: Dec 14, 2010 Category: aircraft

2009-24-21 Recurring

final rule

Airworthiness Directives; McDonnell Douglas Model DC-9-14, DC-9-15, and DC-9-15F Airplanes; and McDonnell Douglas Model DC-9-20, DC-9-30, DC-9-40, and DC-9-50 Series Airplanes

Unsafe Condition: could result in a collapsed MLG during takeoff or landing, and possible reduced structural integrity of the airplane.

Effective: Jan 8, 2010 Category: aircraft

2009-03-03

final rule

Airworthiness Directives; McDonnell Douglas Model DC-9-14, DC-9-15, and DC-9-15F Airplanes; and Model DC-9-20, DC-9-30, DC-9-40, and DC-9-50 Series Airplanes

Unsafe Condition: We are adopting a new airworthiness directive (AD) for certain McDonnell Douglas airplanes listed above. This AD requires installing a dam assembly for the container of the fuel boost pump of the c...

Effective: Mar 31, 2009 Category: aircraft

2006-18-05

final rule

Airworthiness Directives; 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

Unsafe Condition: which could cause electrical arcing and consequent fire on the airplane.

Effective: Oct 11, 2006 Category: aircraft

View all McDonnell Douglas ADs →