# AD 79-18-09: Engine Generator Feeder Cables

- Type: Airworthiness directive
- Status: Current
- Products: Lockheed Martin L-1011-385-1, L-1011-385-1-14, L-1011-385-1-15 and L-1011-385-3
- Effective: August 29, 1979
- Superseded by: Nothing supersedes this AD
- Product type: Aircraft, Large airplane
- Amendment: 39-3536
- Registered aircraft: 4 may be affected, by airframe or engine model (OpenAirDocs)
- FAA DRS: https://drs.faa.gov/browse/excelExternalWindow/A53C0666D5F24F7B86256975004923F1.0001
- DRS record last changed: May 30, 2024
- Page: https://openairdocs.org/ad/79-18-09

## The airworthiness directive

79-18-09 LOCKHEED CALIFORNIA: Amendment 39-3536. Applies to Lockheed L- 1011-385 series airplanes certificated in all categories.

Compliance required within the next 400 hours' time in service from the effective date of this AD, unless already accomplished.

To prevent local structural damage and insure security of the No. 2 engine generator feeder cables, accomplish the following:

  (a) Inspect the No. 2 engine generator feeder cables in the aft body area between Fuselage Station 2011 and Fuselage Station 2053 above Waterline 350 for looseness and slack, surface abrasions, discoloration of outer surface and close proximity to structure without clamps or other protective supports. Inspect feeder cable support clamps for lack of clamp cushions and bent or dislodged mount brackets or clamps. These inspections are to be made in accordance with Part 2 of Lockheed Service Bulletin 093-24-086, dated August 2, 1979.

  (b) If any of the above discrepant conditions is found toexist, prior to further flight perform corrective action in accordance with Part 2 of Lockheed Service Bulletin 093-24-086, dated August 2, 1979.

  (c) Alternative inspections, modifications or other actions which provide an equivalent level of safety may be used when approved by the Chief, Aircraft Engineering Division, FAA Western Region.

  (d) Special flight permits may be issued in accordance with FAR 21.197 and 21.199 to operate airplanes to a base for the accomplishment of inspections required by this AD.

This amendment becomes effective August 29, 1979.

## Affected data sheets (1) (OpenAirDocs)

The type certificate data sheets whose models the AD names.

- [TCDS A23WE](https://openairdocs.org/tcds/A23WE): Lockheed Martin Corporation; names 4 of 4 models: L-1011-385-1-14, L-1011-385-3, L-1011-385-1, L-1011-385-1-15

## 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: 4 (4 by airframe model, 0 by engine model)
- Makers: Lockheed 4

Models with the most aircraft:

- [Lockheed L-1011-385-1](https://openairdocs.org/model/lockheed-l-1011-385-1): 2 aircraft (airframe model)
- [Lockheed L-1011-385-1-15](https://openairdocs.org/model/lockheed-l-1011-385-1-15): 1 aircraft (airframe model)
- [Lockheed L-1011-385-3](https://openairdocs.org/model/lockheed-l-1011-385-3): 1 aircraft (airframe model)

All 3 models: https://openairdocs.org/ad/79-18-09/models.md
Every aircraft: https://openairdocs.org/ad/79-18-09/aircraft.md

Its text cites no advisory circulars or STCs.

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