- Effective
- February 21, 1975
- Superseded by
- AD94-22-01
- Models
- DC-10-10, DC-10-10F, DC-10-30, DC-10-30F (KC-10A)
- Data sheet
- TCDSA22WE
- Registered aircraft
- 19 matched by model
- Product
- Aircraft · Large airplane
- Amendment
- 39-2094
Unofficial copy of the text in the FAA’s Dynamic Regulatory System. The FAA’s own copy is the authoritative one. DRS record last changed August 7, 2025.
Copies of the files this page was built from, with their SHA-256. Retrieved October 18, 2026.
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On this page
The airworthiness directive
75-04-11 MCDONNELL DOUGLAS: Amendment 39-2094. Applies to Douglas DC-10 Series -10, -10F, -30, and -30F airplanes, certificated in all categories.
To prevent possible damage to the No. 2 engine due to ingestion of ice and snow, accomplish the following.
(a) After the effective date of this airworthiness directive, when airplanes have been parked during icing conditions (freezing rain, snow, sleet) for any period of time which will enable ice or snow to accumulate on the airplane in the area of the No. 2 engine, inspect the top of the fuselage and the No. 2 engine inlet for the presence of ice and snow accumulation prior to starting engines. If found to exist, remove accumulated ice and snow prior to further flight.
NOTE: Guidelines for inspection and safeguarding the aircraft are contained in these documents:
Douglas AOL 10-546, dated January 11, 1974
Douglas AOL 10-673, dated August 7, 1974
DC-10 Maintenance Manual, Chapter 12-31-01 (b) Make appropriatemaintenance record entries to show compliance with this AD.
This amendment becomes effective February 21, 1975.
Affected TCDS · 1
The type certificate data sheets for the models this AD names, matched by model and maker.
Registered aircraft · 19
Registered aircraft whose airframe or engine model this AD names. Matched by model only, so check each against the AD’s applicability.
| 1975 | 1 |
|---|---|
| 1976 | 1 |
| 1978 | 1 |
| 1988 | 1 |
15 with no year recorded