AD 87-21-04

final rule
Data completeness: 70%

Airworthiness Directives; McDONNELL DOUGLAS DC-10 and KC-10A Series Airplanes

AD Number
87-21-04
Status
final_rule
Effective Date
Product Category
aircraft
Docket
Unknown
FR Citation
This information is not available.

Applicability

TypeManufacturerModelDetails
aircraft The Boeing Company DC-10-10 Airworthiness Directives; McDONNELL DOUGLAS DC-10 and KC-10A Series Airplanes
aircraft The Boeing Company DC-10-10F Airworthiness Directives; McDONNELL DOUGLAS DC-10 and KC-10A Series Airplanes
aircraft The Boeing Company DC-10-15 Airworthiness Directives; McDONNELL DOUGLAS DC-10 and KC-10A Series Airplanes
aircraft The Boeing Company DC-10-30 Airworthiness Directives; McDONNELL DOUGLAS DC-10 and KC-10A Series Airplanes
aircraft The Boeing Company DC-10-30F (KC-10A, KDC-10) Airworthiness Directives; McDONNELL DOUGLAS DC-10 and KC-10A Series Airplanes
aircraft The Boeing Company DC-10-40 Airworthiness Directives; McDONNELL DOUGLAS DC-10 and KC-10A Series Airplanes
aircraft The Boeing Company DC-10-40F Airworthiness Directives; McDONNELL DOUGLAS DC-10 and KC-10A Series Airplanes

Unsafe Condition

Failure of the inboard slat drive arm due to fatigue.

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

Required Actions

Inspect the inboard slat drive arm using magnetic particle, ultrasonic, or eddy current inspection procedures per Service Bulletin A27-203. Replace or rework the arm if cracks exceed or are within reworkable limits as defined in the Service Bulletin.

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

Compliance Time

Prior to the accumulation of 10,000 landings, or within 15 days after the effective date of this AD (October 30, 1987), whichever occurs later, and thereafter at intervals not to exceed 2,000 landings.

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

Affected Aircraft

McDonnell Douglas Model DC-10 and KC-10A series airplanes, 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 8, 2026

Rights: U.S. Government Public Domain

This site is not affiliated with or endorsed by the FAA. Always verify with official sources.

View Official Source ↗ Find More ADs for The Boeing Company DC-10-10

Related Airworthiness Directives

2008-06-21 R1

final rule

Airworthiness Directives; McDonnell Douglas Corporation Model DC- 10-10 and DC-10-10F Airplanes, Model DC-10-15 Airplanes, Model DC-10-30 and DC-10-30F (KC-10A and KDC-10) Airplanes, Model DC-10-40 and DC-10- 40F Airplanes, Model MD-10-10F and MD-10-30F Airplanes, and Model MD-11 and MD-11F Airplanes

Unsafe Condition: Fuel tank systems

Effective: Dec 10, 2009 Category: aircraft

2003-17-07 R1

final rule

Airworthiness Directives; Various Transport Category Airplanes Manufactured by McDonnell Douglas

Unsafe Condition: Auxiliary power unit (APU)

Effective: Sep 24, 2003 Category: aircraft

99-08-22

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Airworthiness Directives; McDonnell Douglas Model DC-10 Series Airplanes and KC-10 (Military) Airplanes

Unsafe Condition: Rear Spar Cap Of Horizontal Stabilizer

Effective: May 21, 1999 Category: aircraft

99-06-08

final rule

(Correction) Airworthiness Directives; McDonnell Douglas Model DC-10 and MD-11 Series Airplanes, and KC-10 (Military) Series Airplanes

Unsafe Condition: Forward Trunnion Bolt

Effective: Apr 16, 1999 Category: aircraft

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