# AD 89-20-09 R1: Auxiliary Hydraulic Pumps

- Type: Airworthiness directive
- Status: Current
- Products: Boeing DC-10-30 and DC-10-30F (KC-10A, KDC-10)
- Effective: November 3, 1989
- Superseded by: Nothing supersedes this AD
- Product type: Aircraft, Large airplane
- Amendment: 39-6383
- Docket: 89-NM-79-AD
- Registered aircraft: 19 may be affected, by airframe or engine model (OpenAirDocs)
- FAA DRS: https://drs.faa.gov/browse/excelExternalWindow/0F33019BC3FF1BE3862569F2006FF1FF.0001
- DRS record last changed: May 30, 2024
- Page: https://openairdocs.org/ad/89-20-09-R1

## The airworthiness directive

89-20-09 R1 MCDONNELL DOUGLAS: Amendment 39-6328 as corrected by Amendment 39-6383. Docket No. 89-NM-79-AD.

Applicability: Model DC-10-30 and KC-10A (Military) series airplanes, as listed in McDonnell Douglas Service Bulletin A29-127, dated March 3, 1989, certificated in any category.

Compliance: Required as indicated, unless previously accomplished.

To prevent the loss of the use of the auxiliary hydraulic pumps, accomplish the following:

A. Within 30 days after the effective date of this Airworthiness Directive (AD), inspect auxiliary hydraulic pumps 1 and 2 to determine if the correct electrical connector sockets are installed, in accordance with the Accomplishment Instructions of McDonnell Douglas Service Bulletin A29-127, dated March 3, 1989. Any sockets detected which have the incorrect part number must be replaced, prior to further flight, with P/N DC65-8S sockets, in accordance with the service bulletin.

B. Within 15 days after inspection required by paragraph A., above, submit a report of findings, positive or negative, to the Los Angeles Aircraft Certification Office, Attention: ANM-108L, FAA, Northwest Mountain Region, 3229 East Spring Street, Long Beach, California 90806-2425.

C. An alternate means of compliance or adjustment of the compliance time, which provides an acceptable level of safety, may be used when approved by the Manager, Los Angeles Aircraft Certification Office, FAA, Northwest Mountain Region.

NOTE: The request should be forwarded through an FAA Principal Maintenance Inspector (PMI), who will either concur or comment and then send it to the Manager, Los Angeles Aircraft Certification Office.

D. Special flight permits may be issued in accordance with FAR 21.197 and 21.199 to operate airplanes to a base in order to comply with the requirements of this AD.

All persons affected by this directive who have not already received the appropriate service documents from the manufacturer may obtain copies upon request to McDonnell Douglas Aircraft Company, P.O. Box 1771, Long Beach, California 90801, Attn: Manager, Warranty 73-44 (DC-10 Service Bulletin A-29-127). These documents may be examined at the FAA, Northwest Mountain Region, Transport Airplane Directorate, 17900 Pacific Highway South, Seattle, Washington, or the Los Angeles Aircraft Certification Office, 3229 East Spring Street, Long Beach, California.

This AD corrects AD 89-20-09 (Amendment 39-6328) which became effective on October 30, 1989.

This amendment (39-6383, AD 89-20-09 R1) becomes effective on November 3, 1989.

## 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 2 of 11 models: DC-10-30, DC-10-30F (KC-10A KDC-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/89-20-09-R1/models.md
Every aircraft: https://openairdocs.org/ad/89-20-09-R1/aircraft.md

Its text cites no advisory circulars or STCs.

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