# AD 62-08-05: Electrical System

- Type: Airworthiness directive
- Status: Current
- Products: Boeing 707-100 Long Body, 707-100B Long Body, 707-100B Short Body, 707-200, 707-300 Series, 707-300B Series, 707-300C Series, 707-400 Series, 720 Series and 720B Series
- Superseded by: Nothing supersedes this AD
- Product type: Aircraft, Large airplane
- Registered aircraft: 6 may be affected, by airframe or engine model (OpenAirDocs)
- FAA DRS: https://drs.faa.gov/browse/excelExternalWindow/174E67FAAB0E924A86256991006BE039.0001
- DRS record last changed: May 30, 2024
- Page: https://openairdocs.org/ad/62-08-05

## The airworthiness directive

62-08-05 BOEING: Amdt. 422 Part 507 Federal Register April 17, 1962. Applies to All 707 and 720 Series Aircraft.

As a result of a recent incident involving loss of the electrical system and accumulation of dense smoke in the cockpit and cabin, the following is required:

  (a) Unless already accomplished in accordance with recommendations contained in the telegram dated March 23, 1962, issued by Boeing Aircraft Company, within the next 25 hours' time in service, inspect electrical components and wiring within the J6 electrical panel to determine that:

  (1) Lugs and braided leads are tightly secured to the contractor studs;

  (2) Braid jumpers are adequately separated from adjacent jumpers to prevent contact;

  (3) There is no evidence of overheating in wiring and braided leads; and

  (4) There is no evidence of capacitor leaks, swelling or overheating.

  (b) If any of the foregoing items require corrective action, repair in accordance with acceptable maintenance practices.

This directive effective upon publication in the Federal Register for all persons except those to whom it was made effective immediately by telegram dated March 30, 1962.

## Affected data sheets (3) (OpenAirDocs)

The type certificate data sheets whose models the AD names.

- [TCDS 4A21](https://openairdocs.org/tcds/4A21): The Boeing Company; names 4 of 4 models: 707-100B Short Body, 707-200, 707-100 Long Body, 707-100B Long Body
- [TCDS 4A26](https://openairdocs.org/tcds/4A26): The Boeing Company; names 4 of 4 models: 707-300B Series, 707-400 Series, 707-300 Series, 707-300C Series
- [TCDS 4A28](https://openairdocs.org/tcds/4A28): The Boeing Company; names 2 of 2 models: 720B Series, 720 Series

## 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: 6 (6 by airframe model, 0 by engine model)
- Makers: Boeing 6

Models with the most aircraft:

- [Boeing 707-338C](https://openairdocs.org/model/boeing-707-338c): 2 aircraft (airframe model)
- [Boeing 707-368C](https://openairdocs.org/model/boeing-707-368c): 1 aircraft (airframe model)
- [Boeing 707-321B](https://openairdocs.org/model/boeing-707-321b): 1 aircraft (airframe model)
- [Boeing 707-323B](https://openairdocs.org/model/boeing-707-323b): 1 aircraft (airframe model)
- [Boeing 707-351B](https://openairdocs.org/model/boeing-707-351b): 1 aircraft (airframe model)

All 5 models: https://openairdocs.org/ad/62-08-05/models.md
Every aircraft: https://openairdocs.org/ad/62-08-05/aircraft.md

Its text cites no advisory circulars or STCs.

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