AD 2004-25-14

final rule
Data completeness: 70%

Airworthiness Directives; McDonnell Douglas Model DC-9-14, DC-9-15, and DC-9-15F Airplanes; DC-9-20, DC-9-30, DC-9-40, DC-9-50 Series Airplanes; DC-9-81 (MD-81), DC-9-82 (MD-82), DC-9-83 (MD-83), and DC-9-87 (MD-87) Airplanes; and Model MD-88 Airplanes

AD Number
2004-25-14
Status
final_rule
Effective Date
Product Category
aircraft
Docket
Docket No. 2002-NM-333-AD
FR Citation
69 FR 75231

Applicability

TypeManufacturerModelDetails
aircraft McDonnell Douglas DC-9-14 Airworthiness Directives; McDonnell Douglas Model DC-9-14, DC-9-15, and DC-9-15F Airplanes; DC-9-20, DC-9-30, DC-9-40, DC-9-50 Series Airplanes; DC-9-81 (MD-81), DC-9-82 (MD-82), DC-9-83 (MD-83), and DC-9-87 (MD-87) Airplanes; and Model MD-88 Airplanes

Unsafe Condition

Corrosion to the retract cylinder support fitting of the main landing gear (MLG) and the cylinder bore in the support fitting, which could result in compromised integrity of the retract cylinder support fitting of the MLG and possible damage to the hydraulic system.

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

Required Actions

Inspect the retract cylinder support fitting and the cylinder bore of the support fitting of both main landing gear (MLG) for corrosion, and take corrective action if necessary. Replace cadmium-plated retract cylinder support bushings and bearings of both MLG.

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

Compliance Time

Within 15,000 flight hours after the effective date of the AD, or prior to the accumulation of 30,000 total flight hours, whichever is later.

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

Affected Aircraft

McDonnell Douglas Model DC-9-14, DC-9-15, DC-9-15F, DC-9-21, DC-9-31, DC-9-32, DC-9-32 (VC-9C), DC-9-32F, DC-9-33F, DC-9-34, DC-9-34F, DC-9-32F (C-9A, C-9B), DC-9-41, DC-9-51, DC-9-81 (MD-81), DC-9-82 (MD-82), DC-9-83 (MD-83), DC-9-87 (MD-87), and Model MD-88 airplanes; as listed in Boeing Service Bulletin DC9-57-222, dated September 18, 2002; certificated in any category.

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 →