# AD 75-08-13: Wing Engine Nose Cowl

- Type: Airworthiness directive
- Status: Current
- Products: Boeing DC-10-10, DC-10-10F, DC-10-30 and DC-10-30F (KC-10A, KDC-10)
- Effective: May 16, 1975
- Superseded by: Nothing supersedes this AD
- Product type: Aircraft, Large airplane
- Amendment: 39-2165
- Registered aircraft: 19 may be affected, by airframe or engine model (OpenAirDocs)
- FAA DRS: https://drs.faa.gov/browse/excelExternalWindow/1034F58ADF802973862569C9007308A5.0001
- DRS record last changed: May 30, 2024
- Page: https://openairdocs.org/ad/75-08-13

## The airworthiness directive

75-08-13 MCDONNELL DOUGLAS: Amendment 39-2165. Applies to Model DC-10-10, DC-10-10F, DC-10-30, and DC-10-30F airplanes certificated in all categories.

Compliance required within the next 4000 flight hours after the effective date of this AD, unless already accomplished.

To minimize the possibility of losing a wing engine nose cowl due to severed nose cowl attach bolts and engine unbalance loads, modify the wing engine nose cowls per McDonnell Douglas DC-10 Service Bulletin 71-53, "Powerplant - Cowling - Modify Engine Nose Cowl Attachments," dated September 25, 1974, or later FAA-approved revisions, or an equivalent modification approved by the Chief, Aircraft Engineering Division, FAA Western Region.

Special flight permits may be issued under FAR 21.197 and 21.199 for the purpose of moving the aircraft to a base to perform the requirements of this AD.

This amendment becomes effective May 16, 1975.

## Affected data sheets (1) (OpenAirDocs)

The type certificate data sheets whose models the AD names.

- [TCDS A22WE](https://openairdocs.org/tcds/A22WE): The Boeing Company; names 4 of 11 models: DC-10-10F, DC-10-30, DC-10-30F (KC-10A KDC-10), DC-10-10

## Registered aircraft it may apply to (OpenAirDocs)

Matched by airframe and engine model; the AD's applicability may narrow it by serial number, part number or equipment.

- Aircraft: 19 (19 by airframe model, 0 by engine model)
- Makers: Mcdonnell Douglas 13, Mcdonnell-Douglas 5, Douglas 1

Models with the most aircraft:

- [Mcdonnell Douglas DC-10-30F](https://openairdocs.org/model/mcdonnell-douglas-dc-10-30f): 12 aircraft (airframe model)
- [Mcdonnell-Douglas DC-10-30](https://openairdocs.org/model/mcdonnell-douglas-dc-10-30): 5 aircraft (airframe model)
- [Douglas DC-10-30F](https://openairdocs.org/model/douglas-dc-10-30f): 1 aircraft (airframe model)
- [Mcdonnell Douglas DC-10-30F (KDC-10)](https://openairdocs.org/model/mcdonnell-douglas-dc-10-30f-kdc-10): 1 aircraft (airframe model)

All 4 models: https://openairdocs.org/ad/75-08-13/models.md
Every aircraft: https://openairdocs.org/ad/75-08-13/aircraft.md

Its text cites no advisory circulars or STCs.

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