# AD 91-15-22: Engine Bellmouth Panel

- Type: Airworthiness directive
- Status: Current
- Products: Boeing DC-10-40 and DC-10-40F
- Effective: September 9, 1991
- Superseded by: Nothing supersedes this AD
- Product type: Aircraft, Large airplane
- Amendment: 39-7087
- Docket: 91-NM-18-AD
- Registered aircraft: 7 may be affected, by airframe or engine model (OpenAirDocs)
- FAA DRS: https://drs.faa.gov/browse/excelExternalWindow/4FF5F52C45BE16BD86256A080064BD8A.0001
- DRS record last changed: May 30, 2024
- Page: https://openairdocs.org/ad/91-15-22

## The airworthiness directive

91-15-22 MCDONNELL DOUGLAS: Amendment 39-7087. Docket No. 91-NM-18-AD.

Applicability: McDonnell Douglas Model DC-10-40 series airplanes, as listed in McDonnell Douglas Service Bulletin 71-154, dated January 18, 1991, certificated in any category.

Compliance: Required as indicated, unless previously accomplished.

To prevent fuel line and engine fuel shutoff cable damage and possible fire caused by an uncontained engine failure, accomplish the following:

A. Within one year after the effective date of this AD, replace the fuel line shield on the left side of the number 2 engine bellmouth panel, and install an additional plate, as applicable, in accordance with the accomplishment instructions of McDonnell Douglas DC-10 Service Bulletin 71-154, dated January 18, 1991.

B. An alternative method 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 (AC0), FAA, Transport Airplane Directorate.

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

C. 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.

D. The replacement and installation requirements shall be done in accordance with McDonnell Douglas DC-10 Service Bulletin 71-154, dated January 18, 1991. This incorporation by reference was approved by the Director of the Federal Register in accordance with 5 U.S.C. 552(a) and 1 CFR Part 51. Copies may be obtained from McDonnell Douglas Corporation, 3855 Lakewood Boulevard, Long Beach, California 90846, Attention: DC-10 Technical Publications, Technical Administrative Support C1-L5B. Copies may be inspected at the FAA, Transport Airplane Directorate, Renton, Washington; or at the LosAngeles Aircraft Certification Office, 3229 East Spring Street, Long Beach, California; or at the Office of the Federal Register, 1100 L Street N.W., Room 8401, Washington, D.C.

This amendment (39-7087, AD 91-15-22) becomes effective on September 9, 1991.

## 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-10-40, DC-10-40F

## 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: 7 (7 by airframe model, 0 by engine model)
- Makers: Douglas 7

Models with the most aircraft:

- [Douglas DC-10-40](https://openairdocs.org/model/douglas-dc-10-40): 6 aircraft (airframe model)
- [Douglas DC-10-40F](https://openairdocs.org/model/douglas-dc-10-40f): 1 aircraft (airframe model)

All 2 models: https://openairdocs.org/ad/91-15-22/models.md
Every aircraft: https://openairdocs.org/ad/91-15-22/aircraft.md

Its text cites no advisory circulars or STCs.

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