# AD 64-09-01: Stabilizer and Spoiler Position Transmitters

- 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
- Effective: May 19, 1964
- Superseded by: Nothing supersedes this AD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/AA1C273025DBEAC886256992004F0060.0001
- DRS record last changed: May 30, 2024
- Page: https://openairdocs.org/ad/64-09-01

## The airworthiness directive

64-09-01 BOEING: Amdt. 715 Part 507 Federal Register April 18, 1964. Applies to All Models 707 and 720 Series Aircraft, Serial Numbers 17586 through 17612, 17614 through 17652, 17658 through 17690, 17692 through 17724, 17903 through 17905, 17907 through 17930, 18012 through 18037, 18041 through 18050, 18054 through 18087, 18154 through 18167, 18240 through 18246, 18248 through 18251, 18334 through 18339, 18351 through 18357, 18372 through 18397, 18400 through 18404, 18406 through 18408, 18411 and 18412, 18414 through 18425, 18451 through 18457, 18460 and 18461.

Compliance required within 1,000 hours' time in service after the effective date of this AD, unless already accomplished.

To prevent slippage of the crank arms on the shafts of the respective stabilizer and spoiler position transmitters, and to prevent rotation of the position transmitter in its brackets, rework the crank arms or replace with modified crank arms, and add a washer under the nut of each clamping boltin accordance with the Modification Data (PRR 15506) of Boeing Service Bulletin No. 1836 or FAA approved equivalent.

(Boeing Service Bulletin No. 1836 covers this same subject.)

This directive effective May 19, 1964.

## 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/64-09-01/models.md
Every aircraft: https://openairdocs.org/ad/64-09-01/aircraft.md

Its text cites no advisory circulars or STCs.

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